MA MAINTENANCE

MA

L MAINTENANCE

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-tors. MA-4 PREPARATION Revision: May 2004 2003 Altima PREPARATION PFP:00002 Special Service Tool ELS000JT The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

MAINTENANCE

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L MAINTENANCE

SECTION

MAINTENANCE C

CONTENTS

PRECAUTIONS ......................................................... 3 Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................. 3
PREPARATION .......................................................... 4 Special Service Tool ................................................ 4 Commercial Service Tool ........................................ 4
GENERAL MAINTENANCE ...................................... 5 Explanation of General Maintenance ...................... 5
PERIODIC MAINTENANCE ...................................... 7 Introduction of Periodic Maintenance ...................... 7 SCHEDULE 1 .......................................................... 7 EMISSION CONTROL SYSTEM MAINTENANCE ................................................................. 7 CHASSIS AND BODY MAINTENANCE .............. 9 SCHEDULE 2 ........................................................ 10 EMISSION CONTROL SYSTEM MAINTENANCE ............................................................... 10 CHASSIS AND BODY MAINTENANCE .............11
RECOMMENDED FLUIDS AND LUBRICANTS ..... 12 Fluids and Lubricants ............................................ 12 QR25DE ............................................................. 12 VQ35DE ............................................................. 12 SAE Viscosity Number .......................................... 13 GASOLINE ENGINE OIL ................................... 13 ANTI-FREEZE COOLANT MIXTURE RATIO .... 13
ENGINE MAINTENANCE (QR25DE ENGINE) ....... 15 Checking Drive Belts ............................................. 15 Changing Engine Coolant ..................................... 15 DRAINING ENGINE COOLANT ........................ 15 REFILLING ENGINE COOLANT ....................... 16 FLUSHING COOLING SYSTEM ........................ 17 Checking Fuel Lines .............................................. 17 Changing Air Cleaner Filter ................................... 18 VISCOUS PAPER TYPE .................................... 18 Changing Engine Oil ............................................. 18 Changing Oil Filter ................................................ 19 Changing Spark Plugs (Platinum - Tipped Type) ... 19 Checking EVAP Vapor Lines ................................. 21
ENGINE MAINTENANCE (VQ35DE ENGINE) ........ 22

Checking Drive Belts ............................................. 22 F

Changing Engine Coolant ...................................... 23

DRAINING ENGINE COOLANT ......................... 23

REFILLING ENGINE COOLANT ........................ 23 G FLUSHING COOLING SYSTEM ........................ 24

Checking Fuel Lines .............................................. 25

Changing Air Cleaner Filter ................................... 25 VISCOUS PAPER TYPE .................................... 25

Changing Engine Oil .............................................. 25

Changing Oil Filter ................................................. 26 Changing Spark Plugs (Platinum - Tipped Type) ... 27 I

Checking EVAP Vapor Lines ................................. 28

CHASSIS AND BODY MAINTENANCE .................. 29

Checking Exhaust System ..................................... 29 J

Checking Clutch Fluid Level and Leaks ................ 29

Checking M/T Oil ................................................... 29

Changing M/T Oil ................................................... 29 K Checking A/T Fluid ................................................ 30

Changing A/T Fluid ................................................ 30

Balancing Wheels (Bonding Weight Type) ............ 31 REMOVAL .......................................................... 31 MA

WHEEL BALANCE ADJUSTMENT .................... 31

Tire Rotation .......................................................... 33

Checking Brake Fluid Level and Leaks ................. 33 M

Checking Brake Lines and Cables ........................ 33

Checking Disc Brake ............................................. 34

ROTOR ............................................................... 34

CALIPER ............................................................ 34

PAD .................................................................... 34

Checking Steering Gear and Linkage .................... 35

STEERING GEAR .............................................. 35

STEERING LINKAGE ........................................ 35

Checking Power Steering Fluid and Lines ............. 35

Axle and Suspension Parts ................................... 35

Drive Shaft ............................................................. 36

Lubricating Locks, Hinges and Hood Latch ........... 37

Checking Seat Belts, Buckles, Retractors, Anchors

and Adjusters ......................................................... 37

SERVICE DATA AND SPECIFICATIONS (SDS) ..... 38

Engine Maintenance (QR25DE) ............................ 38

Revision: May 2004

MA-1

2003 Altima

SPARK PLUGS (PLATINUM - TIPPED TYPE) ... 38 BELT DEFLECTION AND TENSION .................. 38 Engine Maintenance (VQ35DE) ............................ 38 SPARK PLUGS (PLATINUM - TIPPED TYPE) ... 38

BELT DEFLECTION AND TENSION ..................38 Chassis and Body Maintenance ............................38
WHEEL BALANCE .............................................38

Revision: May 2004

MA-2

2003 Altima

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT A

BELT PRE-TENSIONER"

ELS000LQ

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SRS and SB section of this Service Man-

ual.

WARNING:

q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death

in the event of a collision which would result in air bag inflation, all maintenance must be per-

formed by an authorized NISSAN/INFINITI dealer.

q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-

sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air

Bag Module, see the SRS section.

q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-

tors.

Revision: May 2004

MA-3

2003 Altima

PREPARATION

Special Service Tool

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number (Kent-Moore No.) Tool name

Description

KV10115801 (J38956) Oil filter cap wrench

Removing oil filter a: 64.3 mm (2.531 in)

PFP:00002
ELS000JT

Commercial Service Tool
Tool name (Kent-Moore No.)
Belt tension gauge (BT3373-F)

NT375
Description Checking drive belt tension

ELS000JU

Spark plug wrench

AMA126

Removing and installing spark plugs

Coolant Refill Tool (J-45695)
Power Tool

S-NT047

For refilling engine cooling system

LMA053

Loosening bolts and nuts

PBIC0190E

Revision: May 2004

MA-4

2003 Altima

GENERAL MAINTENANCE

GENERAL MAINTENANCE Explanation of General Maintenance

PFP:00000
A
ELS000JW

General maintenance includes those items which should be checked during the normal day-to-day operation of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform B checks and inspections themselves or have their NISSAN dealers do them.

OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified. Item

C
Reference page

Tires

Check the pressure including the spare, at least once a month and always prior

to a long distance trip with a gauge. Adjust to the specified pressure if neces-

sary. Check carefully for damage, cuts or excessive wear.

Wheel nuts Windshield

When checking the tires, make sure no nuts are missing, and check for any loose nuts. Tighten if necessary.
Clean the windshield on a regular basis. Check windshield at least every six months for cracks or other damage. Repair as necessary.

--
E
--

Tire rotation

Tires should be rotated every 12,000 km (7,500 miles).

MA-33

Wheel alignment and If the vehicle pulls to either side while driving on a straight and level road, or if

FSU-6, "Front Wheel

balance

you detect uneven or abnormal tire wear, there may be a need for wheel align- Alignment" and MA-31,

ment. If the steering wheel or seat vibrates at normal highway speeds, wheel balancing may be needed.

"Balancing Wheels (Bonding Weight Type)"

Windshield wiper blades

Check for cracks or wear if they do not wipe properly.

Doors and engine

Check that all doors and the engine hood operate smoothly as well as the trunk

hood

lid and back hatch. Also make sure that all latches lock securely. Lubricate if

necessary. Make sure that the secondary latch keeps the hood from opening when the primary latch is released.

MA-37

When driving in areas using road salt or other corrosive materials, check lubri-

cation frequently.

Lamps

Make sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and

other lamps are all operating properly and installed securely. Also check head-

lamp aim. Clean the headlamps on a regular basis.

INSIDE THE VEHICLE

The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the

vehicle, etc.

Item
Warning lamps and chimes

Make sure that all warning lamps and chimes are operating properly.

Reference page
MA
--

Windshield wiper and Check that the wipers and washer operate properly and that the wipers do not

washer

streak.

Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient quantity when operating the heater or air conditioner.

Steering wheel

Check that it has the specified play. Be sure to check for changes in the steering

condition, such as excessive play, hard steering or strange noises.

Free play: Less than 35 mm (1.38 in)

Seats

Check seat position controls such as seat adjusters, seatback recliner, etc. to

make sure they operate smoothly and that all latches lock securely in every

position. Check that the head restraints move up and down smoothly and that

the locks (if equipped) hold securely in all latched positions. Check that the

latches lock securely for folding-down rear seatbacks.

Seat belts

Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters and retractors) operate properly and smoothly, and are installed securely. Check the belt webbing for cuts, fraying, wear or damage.

MA-37

Clutch pedal

Make sure the pedal operates smoothly and check that it has proper free play.

Accelerator pedal

Check the pedal for smooth operation and make sure the pedal does not catch or require uneven effort. Keep the floor mats away from the pedal.

Revision: May 2004

MA-5

2003 Altima

GENERAL MAINTENANCE

Item Brakes Brake pedal and booster
Parking brake
Automatic transaxle "Park" mechanism

Check that the brake does not pull the vehicle to one side when applied.
Check the pedal for smooth operation and make sure it has the proper distance under it when depressed fully. Check the brake booster function. Be sure to keep the floor mats away from the pedal.
Check that the lever has the proper travel and make sure that the vehicle is held securely on a fairly steep hill when only the parking brake is applied.
Check that the lock release button on the selector lever operates properly and smoothly. On a fairly steep hill check that the vehicle is held securely with the selector lever in the "P" position without applying any brakes.

Reference page --
BR-6, "BRAKE PEDAL" and BR-15, "BRAKE BOOSTER"
PB-3, "Inspection"
--

UNDER THE HOOD AND VEHICLE

The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).

Item

Reference page

Windshield washer fluid

Check that there is adequate fluid in the tank.

Engine coolant level Check the coolant level when the engine is cold.

MA-16 QR25DE or MA-23 VQ35DE

Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc., that

may have accumulated. Make sure the hoses have no cracks, deformation,

deterioration or loose connections.

Brake and clutch fluid Make sure that the brake and clutch fluid levels are between the "MAX" and

levels

"MIN" lines on the reservoirs.

MA-33 (brakes), MA-29 (clutch)

Battery

Check the fluid level in each cell. It should be between the "MAX" and "MIN"

lines. Vehicles operated in high temperatures or under severe conditions require

frequent checks of the battery fluid level.

Engine drive belts

Make sure that no belt is frayed, worn, cracked or oily.

MA-15 QR25DE or MA-22 VQ35DE

Engine oil level

Check the level on the dipstick after parking the vehicle on a level spot and turning off the engine.

MA-18 QR25DE or MA-25 VQ35DE

Power steering fluid level and lines

Check the level on the dipstick with the engine off. Check the lines for improper attachment, leaks, cracks, etc.

MA-35

Automatic transaxle fluid level

Check the level on the dipstick after putting the selector lever in "P" with the engine idling.

Exhaust system

Make sure there are no loose supports, cracks or holes. If the sound of the exhaust seems unusual or there is a smell of exhaust fumes, immediately locate the trouble and correct it.

MA-29

Underbody

The underbody is frequently exposed to corrosive substances such as those

used on icy roads or to control dust. It is very important to remove these sub-

stances, otherwise rust will form on the floor pan, frame, fuel lines and around the exhaust system. At the end of winter, the underbody should be thoroughly

flushed with plain water, being careful to clean those areas where mud and dirt

can easily accumulate.

Fluid leaks

Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle

has been parked for a while. Water dripping from the air conditioner after use is normal. If you should notice any leaks or gasoline fumes are evident, check for

the cause and correct it immediately.

Revision: May 2004

MA-6

2003 Altima

PERIODIC MAINTENANCE

PERIODIC MAINTENANCE Introduction of Periodic Maintenance

PFP:00026
A
ELS000JX

Two different maintenance schedules are provided, and should be used, depending upon the conditions in which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic B maintenance at the same mileage/time intervals.

Follow Periodic Maintenance Schedule 1 if the driving habits frequently include Emission Control Sys-

one or more of the following driving conditions:

tem Maintenance

MA-7

q Repeated short trips of less than 5 miles (8 km).

Chassis and Body

q Repeated short trips of less than 10 miles (16 km) with outside temperatures Maintenance

remaining below freezing.

Schedule 1 q Operating in hot weather in stop-and-go "rush hour" traffic.

q Extensive idling and/or low speed driving for long distances, such as police, taxi or door-to-door delivery use.
q Driving in dusty conditions.

MA-9
E

q Driving on rough, muddy, or salt spread roads.

q Towing a trailer, using a camper or a car-top carrier.

Follow Periodic Maintenance Schedule 2 if none of driving conditions shown in Schedule 1 apply to the driving habits.

Emission Control System Maintenance

MA-10

Schedule 2

Chassis and Body Maintenance

MA-11

SCHEDULE 1

ELS000JY

EMISSION CONTROL SYSTEM MAINTENANCE

Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. []: At the mileage intervals only

MAINTENANCE OPERATION

MAINTENANCE INTERVAL

Reference

Perform at number of miles, Miles x 1,000 3.75 7.50 11.25 15 18.75 22.5 26.25 30

Section -

kilometers or months, which- (km x 1,000)

(6)

(12) (18) (24) (30) (36) (42) (48)

Page or -

ever comes first.

Months

24 Content Title

Drive belts Air cleaner filter

NOTE (1) NOTE (2)

MA-

15(QR25DE)

MA-22

(VQ35DE)

MA-

[R]

18(QR25DE)
or MA-25 MA

(VQ35DE)

EVAP vapor lines

MA-21

(QR25DE) or MA-28

(VQ35DE)

Fuel lines

MA-

17(QR25DE) or MA-25

(VQ35DE)

Fuel filter

NOTE (3)

Engine coolant

NOTE (4)

MA15(QR25DE)
or MA-23 (VQ35DE)

Engine oil

MA-18

R (QR25DE) or

(VQ35DE)

Revision: May 2004

MA-7

2003 Altima

PERIODIC MAINTENANCE

MAINTENANCE OPERATION

Perform at number of miles, Miles x 1,000 3.75

kilometers or months, which- (km x 1,000) (6)

ever comes first.

Months

Engine oil filter (Use part No.

15208 9E000 (for QR25DE

engine), 15208 65F01 (for

VQ35DE engine) or equiva-

lent.)

Spark plugs (PLATINUMTIPPED type)

Intake & exhaust valve clearance*

NOTE (5)

MAINTENANCE INTERVAL

Reference

7.50 11.25 15 18.75 22.5 26.25 30

Section -

(12) (18) (24) (30) (36) (42) (48)

Page or -

24 Content Title

MA-19

(QR25DE) or MA-26

(VQ35DE)

Replace every 105,000 miles (169,000 km).

MA-19 (QR25DE) or
MA-27 (VQ35DE)
EM-101, "Valve Clear-
ance" (QR25DE) or
EM-229, "Valve Clear-
ance" (VQ35DE)

MAINTENANCE OPERATION

Perform at number of miles, kilometers or months, whichever comes first.

Miles x 1,000 (km x 1,000)
Months

Drive belts

NOTE (1)

Air cleaner filter

NOTE (2)

EVAP vapor lines

Fuel lines Fuel filter Engine coolant

NOTE (3) NOTE (4)

Engine oil
Engine oil filter (Use part No. 15208-9E000 (for QR25DE engine), 15208 65F01 (for VQ35DE engine) or equivalent.

33.75 (54) 27
R R

37.5 (60) 30
R R

MAINTENANCE INTERVAL

Reference

41.25 45 48.75 52.5 56.25 60

Section -

(66) (72) (78) (84) (90) (96) Page or -

48 Content Title

MA-15

(QR25DE) or MA-22

(VQ35DE)

MA-18

[R]

(QR25DE) or MA-25

(VQ35DE)

MA-21

(QR25DE) or MA-28

(VQ35DE)

MA-17

(QR25DE) or MA-25

(VQ35DE)

MA-15

(QR25DE) or MA-23

(VQ35DE)

MA-18

(QR25DE) or MA-25

(VQ35DE)

MA-19

(QR25DE) or MA-26

(VQ35DE)

Revision: May 2004

MA-8

2003 Altima

PERIODIC MAINTENANCE

MAINTENANCE OPERATION

MAINTENANCE INTERVAL

Reference

Perform at number of miles, Miles x 1,000 33.75 37.5 41.25 45 48.75 52.5 56.25 60

Section -

kilometers or months, which- (km x 1,000) (54) (60) (66) (72) (78) (84) (90) (96) Page or -

ever comes first.

Months

48 Content Title

MA-19

Spark plugs (PLATINUMTIPPED type)

Replace every 105,000 miles (169,000 km).

(QR25DE) or MA-27

(VQ35DE)

EM-101,

"Valve Clear-

Intake & exhaust valve clearance*

NOTE (5)

ance"
(QR25DE) or D
EM-229,

"Valve Clear-

ance" (VQ35DE)

NOTE:

(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts if found

damaged or if the auto belt tensioner reading of QR25DE engine reaches the maximum limit.

(2) If operating mainly in dusty conditions, more frequent maintenance may be required.

(3) Maintenance-free item. For service procedures, go to the FL section.

(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months. (5) If valve noise increases, inspect valve clearance.

* Maintenance items and intervals with "*" are recommended by NISSAN for reliable vehicle operation. The owner need not perform

such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are

required.

CHASSIS AND BODY MAINTENANCE

Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary.

MAINTENANCE OPERATION

MAINTENANCE INTERVAL

Reference

Perform at number of miles, kilometers or months, whichever comes first.

Miles x 1,000 3.75

(km x 1,000) (6)

Months

7.50 11.25 15 18.75 22.5 26.25 30

Section -

(12) (18) (24) (30) (36) (42) (48) Page or -

24 Content Title

Brake lines & cables Brake pads & rotors

MA-33

MA-34

Automatic transaxle fluid

MA-30 (A/T)

& manual transaxle gear NOTE (1)

oil

MA-29 (M/T)

Steering gear & linkage, axle & suspension parts

MA-35, MA35

Tire rotation

NOTE (2)

MA-33

Exhaust system

MA-29

Front drive shaft boot

MA-36

In-cabin microfilter

ATC-110

R (ATC), MTC-

72 (MTC)

MAINTENANCE OPERATION

Perform at number of miles, kilometers or months, whichever comes first.

Miles x 1,000 (km x 1,000) Months

Brake lines & cables

Brake pads & rotors

MAINTENANCE INTERVAL

Reference

33.75 37.5 41.25 45 48.75 52.5 56.25 60

Section -

(54) (60) (66) (72) (78) (84) (90) (96)

Page or -

48 Content Title

MA-33

MA-34

Revision: May 2004

MA-9

2003 Altima

PERIODIC MAINTENANCE

MAINTENANCE OPERATION

Perform at number of miles, kilometers or months, whichever comes first.

Miles x 1,000 (km x 1,000) Months

MAINTENANCE INTERVAL

Reference

33.75 37.5 41.25 45 48.75 52.5 56.25 60

Section -

(54) (60) (66) (72) (78) (84) (90) (96)

Page or -

48 Content Title

Automatic transaxle fluid

& manual transaxle gear NOTE (1)

oil

MA-30 (A/T)

MA-29 (M/T)

Steering gear & linkage, axle & suspension parts

MA-35, MA35

Tire rotation

NOTE (2)

MA-33

Exhaust system

MA-29

Front drive shaft boots

MA-36

In-cabin microfilter

ATC-110

R (ATC), MTC-

72 (MTC)

NOTE: (1) If towing a trailer, using a camper or a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil at every 30,000 miles (48,000 km) or 24 months. (2) Refer to MA-5, "GENERAL MAINTENANCE" .

SCHEDULE 2

ELS000JZ

EMISSION CONTROL SYSTEM MAINTENANCE

Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. []: At the mileage intervals only

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first.

Miles x 1,000 (km x 1,000)
Months

MAINTENANCE INTERVAL
7.5 15 22.5 30 37.5 45 52.5 (12) (24) (36) (48) (60) (72) (84)
6 12 18 24 30 36 42

Reference

60 Section - Page

(96)

or - Content

Title

Drive belts

NOTE (1)

MA-15

(QR25DE) or MA-22

(VQ35DE)

Air cleaner filter

MA-18

[R]

(QR25DE) or MA-25

(VQ35DE)

EVAP vapor lines

MA-21

(QR25DE) or MA-28

(VQ35DE)

Fuel lines

MA-17

(QR25DE) or MA-25

(VQ35DE)

Fuel filter

NOTE (2)

Engine coolant

NOTE (3)

MA-15

(QR25DE) or MA-23

(VQ35DE)

Engine oil

MA-18

(QR25DE) or MA-25

(VQ35DE)

Engine oil filter (Use part No. 15208-9E000 (for QR25DE engine), 15208 65F01 (for VQ35DE engine) or equivalent.

MA-19

(QR225DE) or MA-26

(VQ35DE)

Revision: May 2004

MA-10

2003 Altima

PERIODIC MAINTENANCE

MAINTENANCE OPERATION Perform at number of miles, kilometers or months, whichever comes first.
Spark plugs (PLATINUMTIPPED type)
Intake & exhaust valve clearance*

Miles x 1,000 (km x 1,000)
Months
NOTE (4)

MAINTENANCE INTERVAL

Reference

7.5 15 22.5 30 37.5 45 52.5

Section - Page

(12) (24) (36) (48) (60) (72) (84) (96)

or - Content

6 12 18 24 30 36 42

Title

MA-19

Replace every 105,000 miles (169,000 km).

(QR25DE) or MA-27

(VQ35DE)

EM-101, "CYL-

INDER HEAD"

(QR25DE) or
EM-229, "CYL- D

INDER HEAD"

(VQ35DE)

NOTE:

(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts if found

damaged or if the auto belt tensioner reading of QR25DE engine reaches the maximum limit.

(2) Maintenance-free item. For service procedures, go to FL section.

(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.

(4) If valve noise increases, inspect valve clearance.

* Maintenance items and intervals with "*" are recommended by NISSAN for reliable vehicle operation. The owner need not perform

such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are G
required.

CHASSIS AND BODY MAINTENANCE

Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. H

MAINTENANCE OPERATION

MAINTENANCE INTERVAL

Reference Sec-

Perform at number of miles, kilo- Miles x 1,000

7.5 15 22.5 30 37.5 45 52.5 60 tion - Page or -

meters or months, whichever

(km x 1,000)

(12) (24) (36) (48) (60) (72) (84) (96)

Content Title

comes first.

Months

6 12 18 24 30 36 42 48

Brake lines & cables Brake pads & rotors

MA-33

MA-34

Automatic transaxle fluid & manual transaxle gear oil
Steering gear & linkage, axle & suspension parts

MA-30 (A/T) or MA-29 (M/T)

MA-35, MA-35

Tire rotation Exhaust system

NOTE (1)

MA-33

MA-29

Front drive shaft boots

MA-36

In-cabin microfilter

ATC-110 (ATC), MTC-72 (MTC)

NOTE: (1) Refer to MA-5, "GENERAL MAINTENANCE"

Revision: May 2004

MA-11

2003 Altima

RECOMMENDED FLUIDS AND LUBRICANTS

PFP:00000

Fluids and Lubricants
QR25DE

ELS000K0

Capacity (Approximate)

US measure

Imp measure

Liter

Recommended Fluids/Lubricants

Engine oil Drain and refill

With oil filter change
Without oil filter change

Dry engine (engine overhaul)

4 1/2 qt 4 1/4 qt 4 7/8 qt

3 3/4 qt 3 1/2 qt
4 qt

4.2

q API Certification Mark*1

q API grade SL, Energy Conserv-

4.0

ing*1

q ILSAC grade GF-III*1 4.6

Cooling system

Without reservoir Reservoir

7 1/4 qt 3/4 qt

6 1/8 qt 5/8 qt

6.9

Genuine NISSAN Long Life Anti-

0.7

freeze coolant or equivalent

Manual transaxle fluid

2 3/8 qt

2 qt

Genuine NISSAN Manual Trans-

2.3

mission Fluid (MTF) HQ multi 75W-

Automatic transaxle fluid

9 3/4 qt

8 1/8 qt

NISSAN Matic "D" (Continental US

9.2

and Alaska) or Canada NISSAN

Automatic Transmission Fluid *2

Power steering fluid (PSF)

2 1/8 pt

1 3/4 pt

1.0

Genuine NISSAN PSF or equivalent*3

Brake and clutch fluids

Genuine NISSAN Super Heavy

Duty Brake Fluid*4 or equivalent

DOT 3 (US FMVSS No. 116)

Multi-purpose grease

NLGI No. 2 (Lithium soap base)

Windshield washer fluid

Genuine NISSAN Windshield

Washer Concentrate Cleaner &

Anti-freeze or equivalent

Air conditioning system refrigerant 1.045 - 1.155 lb 1.045 - 1.155 lb 0.475 - 0.525 kg HFC-134a (R-134a)*5

Air conditioning system lubricant

5.01 fl oz

5.03 fl oz

150 m

Genuine NISSAN A/C System Lubricant Type DH-PS or equivalent

*1: For further details, see "SAE Viscosity Number". *2: DexronTM III / Mercon TM or equivalent may also be used. Outside the continental United States and Alaska contact a NISSAN dealership for more information regarding suitable fluids, including recommended brand(s) of DexronTM III / Mercon TM Automatic Transmission Fluid. *3: Genuine NISSAN PSF, Canada NISSAN Automatic Transmission Fluid, DexronTM III / MerconTM , or equivalent ATF may also be used. *4: Available in mainland U.S.A. through your NISSAN dealer. *5: For further details, see "Air conditioner specification label".

VQ35DE

Capacity (Approximate)

US measure

Imp measure

Liter

Recommended Fluids/Lubricants

Engine oil Drain and refill

With oil filter change
Without oil filter change

Dry engine (engine overhaul)

4 1/4 qt 3 7/8 qt 5 1/4 qt

3 1/2 qt 3 1/4 qt 4 3/8 qt

4.0

q API Certification Mark*1

q API grade SL, Energy Conserv-

3.7

ing*1

q ILSAC grade GF-III*1 5.0

Cooling system

Without reservoir Reservoir

7 7/8 qt 3/4 qt

6 5/8 qt 5/8 qt

7.5

Genuine NISSAN Long Life Anti-

0.7

freeze coolant or equivalent

Manual transaxle fluid

4 7/8 pt

4 pt

Genuine NISSAN Manual Trans-

2.3

mission Fluid (MTF) HQ multi

75W-85

Revision: May 2004

MA-12

2003 Altima

RECOMMENDED FLUIDS AND LUBRICANTS

Capacity (Approximate)

US measure

Imp measure

Liter

Recommended Fluids/Lubricants

Automatic transaxle fluid

9 3/4 qt

8 1/8 qt

NISSAN Matic "D" (Continental US

9.2

and Alaska) or Canada NISSAN

Automatic Transmission Fluid *2

Power steering fluid (PSF) Brake and clutch fluids Multi-purpose grease

2 1/8 pt -- --

1 3/4 pt -- --

1.0

Genuine NISSAN PSF or equivalent*3

Genuine NISSAN Super Heavy

Duty Brake Fluid*4 or equivalent

DOT 3 (US FMVSS No. 116)

NLGI No. 2 (Lithium soap base)

Windshield washer fluid

Genuine NISSAN Windshield

Washer Concentrate Cleaner &

Anti-freeze or equivalent

Air conditioning system refrigerant

1.045 - 1.155 lb 1.045 - 1.155 lb 0.475 - 0.525 kg HFC-134a (R-134a)*5

Air conditioning system lubricant

5.01 fl oz

5.03 fl oz

150 m

Genuine NISSAN A/C System

Lubricant Type DH-PS or equiva-

lent

*1: For further details, see "SAE Viscosity Number".

*2: DexronTM III / Mercon TM or equivalent may also be used. Outside the continental United States and Alaska contact a NISSAN deal- G

ership for more information regarding suitable fluids, including recommended brand(s) of DexronTM III / Mercon TM Automatic Trans-

mission Fluid.

*3: Genuine NISSAN PSF, Canada NISSAN Automatic Transmission Fluid, DexronTM III / MerconTM , or equivalent ATF may also be H
used.

*4: Available in mainland U.S.A. through your NISSAN dealer.

*5: For further details, see "Air conditioner specification label".
SAE Viscosity Number
GASOLINE ENGINE OIL

I
ELS000K1

SAE 5W-30 viscosity oil is preferred for all temperatures. SAE

10W-30 and 10W-40 viscosity oil may be used if the ambient

temperature is above -18°C (0°F).

Use of 5W-30 viscosity oil will increase fuel economy. K

MMA117AA
ANTI-FREEZE COOLANT MIXTURE RATIO The engine cooling system is filled at the factory with a high-quality, long life, year-round, anti-freeze coolant solution. The anti-freeze solution contains rust and corrosion inhibitors. Therefore, additional cooling system additives are not necessary.

Revision: May 2004

MA-13

2003 Altima

RECOMMENDED FLUIDS AND LUBRICANTS

Protection for outside temperature down to:

°C

°F

-35°

-30°

Genuine NISSAN Long Life Anti-freeze coolant or equivalent
50%

Demineralized water or distilled water 50%

CAUTION: q When adding or replacing coolant, be sure to use only Genuine NISSAN Long Life Anti-freeze
coolant or equivalent with the proper mixture ratio of 50% anti-freeze and 50% demineralized water or distilled water.
q Other types of coolant solutions may damage your cooling system.

Revision: May 2004

MA-14

2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)
ENGINE MAINTENANCE (QR25DE ENGINE) Checking Drive Belts

PFP:10001
A
ELS000K2
B

G
SBIA0234E

NOTE:

On vehicles not equipped with A/C, there is an idler pulley in the position for the drive belt routing.

WARNING:

Be sure to perform engine maintenance when the engine is stopped.

q Remove the under cover using power tool, when inspecting the power steering pump belt. q Make sure that the indicator (single line notch) of each automatic tensioner is within the allowable working I
range (between the three line notches).

NOTE:

q Check the drive belt auto-tensioner indicator when the engine is cold.

q When the new drive belt is installed, the range should be A.

q The indicator notch is located on the moving side of the tensioner. K
q Visually check the entire belt for wear, damage or cracks.

q If the indicator is out of allowable working range or belt is damaged, replace the belt. Refer to EM-13,

"Removal and Installation" .

q Belt tension adjustment is not necessary, as it is automatically adjusted by the drive belt auto-tensioner.

Changing Engine Coolant
WARNING: q To avoid being scalded, never change the coolant when the engine is hot.

ELS000K3
M

q Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to release built-up pressure. Then push down and turn the cap all the way to remove.

DRAINING ENGINE COOLANT 1. Remove the engine undercover using power tool.
2. Open the radiator drain plug at the bottom of the radiator, and remove the radiator filler cap. This is the only step required when partially draining the cooling system (radiator only).
q Do not to allow the coolant to contact the drive belts.

Revision: May 2004

MA-15

LBIA0063E
2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)
3. Follow this step for heater core removal/replacement only. Disconnect the upper heater hose at the engine side and apply moderate air pressure [103.46 kPa (15 psi, 1.055 kg/cm2 ) maximum air pressure] into the hose for 30 seconds to blow the excess coolant out of the heater core.
4. When draining all of the coolant in the system, remove the reservoir tank and drain the coolant, then clean the reservoir tank before installation.
5. When draining all of the coolant in the system for engine removal or repair, open the drain plug on the cylinder block.

KBIA0163E

6. Check the drained coolant for contaminants such as rust, corrosion or discoloration. If the coolant is contaminated, flush the engine cooling system. Refer to MA-17, "FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT 1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total
system drain or for engine removal or repair.
q The radiator must be completely empty of coolant and water.
q Apply sealant to the threads of the cylinder block drain plugs. Use Genuine High Performance Thread Sealant or equivalent. Refer to GI-43, "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS" .

Radiator drain plug

: 7.8 - 11.8 N·m (0.8 - 1.2 kg-m , 69 - 104 in-lb)

Cylinder block drain plug

: 34 - 44 N·m (3.5 - 4.5 kg-m, 25 - 33 ft-lb)

2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heater ON position. Turn the vehicle ignition ON with the engine OFF as necessary to activate the heater mode.
4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly with the refill tube and the venturi assembly to the radiator cap adapter.
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed position.
q Use Genuine NISSAN Long Life Anti-freeze coolant or equivalent, mixed 50/50 with distilled water or demineralized water. Refer to MA-13, "ANTI-FREEZE COOLANT MIXTURE RATIO".

Engine coolant capacity (without reservoir tank)

: 6.9 (7 1/4 US qt, 6 1/8 Imp qt)

Reservoir tank

: 0.7 (3/4 US qt, 5/8 Imp qt)

6. Install an air hose to the venturi assembly, the air pressure must be within specification.

Compressed air supply pressure

: 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm2 , 80 - 120 psi)

LLIA0058E

Revision: May 2004

MA-16

2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)

CAUTION:

The compressed air supply must be equipped with an air dryer.

7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open

the ball valve on the refill hose slightly. Coolant will be visible rising in the refill hose. Once the refill hose is

full of coolant, close the ball valve. This will purge any air trapped in the refill hose.

8. Continue to draw the vacuum until the gauge reaches 28 inches of vacuum. The gauge may not reach 28 inches in high altitude locations, refer to the vacuum specifications based on the altitude above sea level.

Altitude above sea level Vacuum gauge reading

0 - 100 m (328 ft)

: 28 inches of vacuum

300 m (984 ft)

: 27 inches of vacuum

500 m (1,641 ft)

: 26 inches of vacuum

1,000 m (3,281 ft)

: 24 - 25 inches of vacuum

C D E
LLIA0057E

9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds F to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.

10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then G open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling system is full when the vacuum gauge reads zero.

CAUTION:

Do not allow the coolant container to get too low when filling, to avoid air from being drawn into

the cooling system.

11. Remove the Tool from the radiator neck opening. I
12. Fill the cooling system reservoir tank to the specified level and install the radiator cap. Run the engine to warm up the cooling system and top up the system as necessary.

FLUSHING COOLING SYSTEM

1. Fill the radiator from the filler cap above the radiator upper hose and reservoir tank, with water and rein-

stall the filler cap above the radiator upper hose.

2. Run the engine until it reaches normal operating temperature.

3. Press the engine accelerator two or three times under no-load.

4. Stop the engine and wait until it cools down.

5. Drain the water.

6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.

Checking Fuel Lines
Inspect the fuel lines and fuel tank for improperly attached hoses, leaks, cracks, damage, loose connections, chafing, or deterioration. If necessary, repair or replace any damaged parts.

ELS000K4

Revision: May 2004

MA-17

SMA803A
2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)
Changing Air Cleaner Filter
VISCOUS PAPER TYPE The viscous paper type filter does not need cleaning between specified replacement intervals. Refer to MA-7, "PERIODIC MAINTENANCE" .

ELS000K5

LLIA0016E

Changing Engine Oil

ELS000K6

WARNING: q Be careful not to burn yourself, as the engine oil is hot.
q Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct skin contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
1. The vehicle must be level on the hoist.
2. Warm up the engine, and check for oil leaks from the engine.
3. Stop the engine and wait at least 10 minutes.
4. Remove the drain plug and oil filler cap.

LLIA0011E

5. Drain the engine oil. 6. Install the drain plug and refill the engine with new engine oil.
Oil Specification and Viscosity q Refer to MA-12, "Fluids and Lubricants" .
Oil Capacity (Approximate)

Drain and refill Dry engine (engine overhaul)

With oil filter change Without oil filter change

Unit: 4.2 (4 1/2, 3 3/4) 4.0 (4 1/4, 3 1/2)
4.6 (4 7/8, 4)

(US qt, Imp qt)

CAUTION: q Be sure to clean the drain plug and install it with a new washer.

Oil pan drain plug

: 29 - 39 N·m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)

q The refill capacity depends on the oil temperature and drain time. Use these specifications for reference only.
q Always use the dipstick to determine when the proper amount of oil is in the engine. 7. Warm up the engine and check the area around the drain plug and oil filter for any oil leaks. 8. Stop the engine and wait at least 10 minutes.

Revision: May 2004

MA-18

2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)
9. Check the oil level.
Changing Oil Filter
1. Use an oil filter wrench to remove the oil filter as shown. CAUTION: q The oil filter contains an internal relief valve. Use a genuine NISSAN oil filter. q Be careful not to get burned as the engine and engine oil are hot. q When removing the oil filter, position a shop cloth to absorb any oil leakage or spillage. q Do not allow the engine oil to spill on the drive belts. q Completely wipe off any oil that spills on the engine or on the vehicle.
2. Clean the oil filter mounting surface on the cylinder block. q Coat the oil filter rubber seal of new oil filter with engine oil as shown.
3. Screw the oil filter manually until it touches the engine block installation surface, then tighten it by turning another 2/3 turn, or tighten to specification. Oil filter : 14.7 - 20.5 N·m (1.5 - 2.1 kg-m, 11 - 15 ft-lb)

C
PBIC0249E
D
ELS000K7
E

G
KBIA0303E
H

SMA010

K MA

4. Check the oil level and add engine oil as necessary. 5. After warming up the engine, check for engine for oil leaks, correct as necessary.
Changing Spark Plugs (Platinum - Tipped Type)
1. Remove the engine cover using power tool.

SMA229B ELS000K8

Revision: May 2004

MA-19

2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)
2. Remove the ignition coils. Refer to EM-29, "Removal and Installation" .

LLIA0013E

3. Remove the spark plugs.

4. Install the new spark plugs, check that the gap is within specification before installing. The gap is not adjustable, replace the spark plug as necessary.

Spark plug

: 20 - 29 N·m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)

Gap (nominal) : 1.1 mm (0.043 in)

Spark Plug Types

Standard type Hot type Cold type

PLFR5A-11 PLFR4A-11 PLFR6A-11

q Use the standard type spark plug for normal driving conditions. q The hot type spark plug is suitable (when fouling occurs with the standard type spark plug) under condi-
tions such as: frequent engine starts low ambient temperatures q The cold type spark plug is suitable (when engine spark knock occurs with the standard type spark
plug) under conditions such as: extended highway driving frequent high engine revolution q Do not use a wire brush for cleaning the spark plug electrode.

q If the spark plug electrode is covered with carbon, a spark plug cleaner may be used.

Cleaner air pressure : Less than 588 kPa (6 kg/cm2 , 85 psi)

Cleaning time

: Less than 20 seconds

SMA673B

Revision: May 2004

MA-20

2003 Altima

ENGINE MAINTENANCE (QR25DE ENGINE)

q Checking and adjusting the spark plug gap is not required

between change intervals, replace the spark plug as neces-

sary.

5. Install the ignition coils. Refer to EM-29, "Removal and Installation" .

SMA806CA
D

Ignition coil bolt

: 5.4 - 7.3 N·m (0.55 - 0.75 kg-m, 48 - 65 in-lb)

Checking EVAP Vapor Lines

E
ELS000K9

1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,

chafing and deterioration.

2. Inspect fuel tank filler cap vacuum relief valve for clogging and sticking.

Revision: May 2004

MA-21

2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)
ENGINE MAINTENANCE (VQ35DE ENGINE) Checking Drive Belts

PFP:10001
ELS000KA

LLIA0060E
WARNING: Inspect and check drive belts with the engine off. 1. Inspect belt for cracks, fraying, wear or oil adhesion. If necessary, replace with a new one. 2. Inspect drive belt deflections by pushing on the belt midway between pulleys. 3. Check belt tension using belt tension gauge (BT3373-F or equivalent).
NOTE: q Inspect drive belt deflection and tension when the engine is cold. q Adjust if belt deflections exceed the limit or if belt tension is not within specifications.

Belt Deflection and Tension

Deflection adjustment

Unit: mm (in) Tension adjustment*

Unit: N (kg, lb)

Used belt

Limit

After adjustment

New belt

Used belt

Limit

After adjustment

New belt

Alternator, Air conditioner compressor oil pump

7.0 (0.28)

4.2 - 4.6 (0.17 - 0.18)

3.7 - 4.1 (0.15 - 0.16)

294 (30, 66)

730 -818 (74.5 - 83.5, 164 - 184)

838 - 926 (85.5 - 94.5, 188 - 208)

Power steering oil pump

11.0 (0.43)

7.3 - 8.0 (0.29 - 0.32)

6.5 - 7.2 0.26 - 0.28)

196 (20, 44)

495 - 583 (50.5 - 59.5, 111.3 - 131.1)

603 - 691 (61.5 - 70.5, 135.6 - 155.4)

Applied pushing force

98 N (10 kg, 22 lb)

*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.

NOTE: Inspect drive belt deflection and tension when the engine is cold.

Revision: May 2004

MA-22

2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)

Changing Engine Coolant
WARNING: q To avoid being scalded, never change the coolant when the engine is hot.

ELS000KB
A

q Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn

to release built-up pressure. Then turn the cap all the way.

DRAINING ENGINE COOLANT

1. Remove engine undercover, using power tools.

2. Open radiator drain plug at the bottom of radiator and remove

the radiator filler cap. This is the only step required for a partial

cooling system drain.

3. If removing the heater core, remove the upper heater hose from

the engine coolant outlet and apply moderate air pressure of 15

psi (103.46 kPa, 1.055 kg-cm2 ) maximum for 30 seconds into the hose to blow out excess coolant from the core.

4. For a complete cooling system drain, remove the reservoir tank and drain the coolant, and then clean the reservoir tank before installation.
q Do not allow coolant to spill on the drive belts.

F
LBIA0063E

5. When performing a complete cooling system drain (to remove the engine or for engine repair), remove the

cylinder block front drain plug and the cylinder block RH drain plug.

6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.

q If contaminated, flush the engine cooling system. Refer to MA-24, "FLUSHING COOLING SYSTEM" . H REFILLING ENGINE COOLANT

1. Install the radiator drain plug. If the cooling system was drained completely, install the reservoir tank and

the cylinder block drain plugs.

q The radiator must be completely empty of coolant and water.

q Apply sealant to the threads of the cylinder block drain plugs. Use Genuine High Performance Thread Sealant or equivalent. Refer to GI-43, "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS" . J

Radiator drain plug

: 7.8 - 11.8 N·m (0.8 - 1.2 kg-m , 69 - 104 in-lb)

Cylinder block front drain plug : 8 - 11 N·m (0.8 - 1.2 kg-m, 70 - 104 in-lb)

Cylinder block RH drain plug

: 18 - 21 N·m (1.8 - 2.2 kg-m, 13 - 15 ft-lb)

Revision: May 2004

MA-23

2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)

4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly with the refill tube and the venturi assembly to the radiator cap adapter.
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed position.
q Use Genuine NISSAN Long Life Anti-freeze coolant or equivalent, mixed 50/50 with distilled water or demineralized water. Refer to MA-13, "ANTI-FREEZE COOLANT MIXTURE RATIO" .

Engine coolant capacity (without reservoir tank)
Reservoir tank

: 7.5 (7 7/8 US qt, 6 5/8 Imp qt)
: 0.7 (3/4 US qt, 5/8 Imp qt)

6. Install an air hose to the venturi assembly, the air pressure must be within specification.

Compressed air supply pressure

: 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm2 , 80 - 120 psi)

CAUTION: The compressed air supply must be equipped with an air dryer.

LLIA0058E

7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Coolant will be visible rising in the refill hose. Once the refill hose is full of coolant, close the ball valve. This will purge any air trapped in the refill hose.

Altitude above sea level 0 - 100 m (328 ft) 300 m (984 ft) 500 m (1,641 ft) 1,000 m (3,281 ft)

Vacuum gauge reading : 28 inches of vacuum : 27 inches of vacuum : 26 inches of vacuum : 24 - 25 inches of vacuum

LLIA0057E

9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling system is full when the vacuum gauge reads zero.
CAUTION: Do not allow the coolant container to get too low when filling, to avoid air from being drawn into the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specified level and install the radiator cap. Run the engine to warm up the cooling system and top up the system as necessary.

FLUSHING COOLING SYSTEM 1. Fill the radiator from the filler neck above the radiator upper hose and reservoir tank with clean water and
reinstall radiator filler cap.
2. Run the engine and warm it up to normal operating temperature.
3. Rev the engine two or three times under no-load.

Revision: May 2004

MA-24

2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)
4. Stop the engine and wait until it cools down. 5. Drain the water from the system. Refer to MA-23, "DRAINING ENGINE COOLANT" . 6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.
Checking Fuel Lines
Inspect the fuel lines and fuel tank for improper hose attachment, leaks, cracks, damage, loose connections, chafing, or deterioration. If necessary, repair or replace faulty parts.

ELS000KC

Changing Air Cleaner Filter
VISCOUS PAPER TYPE
The viscous paper type filter does not need cleaning between replacement intervals. Refer to MA-7, "PERIODIC MAINTENANCE" .

E
SMA803A

ELS000KD

Changing Engine Oil
WARNING: q Be careful not to burn yourself, as the engine oil is hot. q Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible. 1. Position the vehicle so it is level on the hoist. 2. Warm up the engine, and check for oil leaks from the engine. 3. Stop the engine and wait at least 10 minutes. 4. Remove the oil drain plug and oil filler cap. 5. Drain the engine oil. 6. Install the oil drain plug and refill the engine with new engine oil. Oil Specification and Viscosity q Refer to MA-12, "Fluids and Lubricants" .
Oil Capacity (Approximate)

Drain and refill Dry engine (engine overhaul)

With oil filter change Without oil filter change

LLIA0016E

ELS000KE

M
SMA096D

Unit: 4.0 (4 1/4, 3 1/2) 3.7 (3 7/8, 3 1/4) 5.0 (5 1/4, 4 3/8)

(US qt, Imp qt)

CAUTION: q Be sure to clean the drain plug and install using a new washer.

Oil pan drain plug: Revision: May 2004

: 29 - 39 N·m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
MA-25

2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)
q The refill oil capacity depends on the oil temperature and drain time. Use these specifications for reference only.
q Always use the dipstick to determine when the proper amount of oil is in the engine. 7. Warm up the engine and check the oil drain plug and oil filter for oil leaks. 8. Stop engine and wait at least 10 minutes. 9. Check engine oil level.

Changing Oil Filter
1. Using an oil filter wrench, remove the oil filter. CAUTION: q The oil filter is provided with a relief valve. Use genuine NISSAN oil filter. q Be careful not to get burned when the engine and engine oil are hot. q When removing, prepare a shop cloth to absorb any oil leakage or spillage. q Do not allow engine oil to adhere to the drive belts. q Completely wipe off any oil that adheres to the engine and the vehicle.
2. Clean oil filter mounting surface on cylinder block. q Coat rubber seal of new oil filter with engine oil.

SMA954C ELS000KF
SMA097D

SMA010
3. Screw the oil filter manually until it touches the engine block installation surface, then tighten it by turning another 2/3 turn, or tighten to specification. Oil filter : 14.7 - 20.5 N·m (1.5 - 2.1 kg-m, 11 - 15 ft-lb)

4. Check engine oil level and add engine oil as necessary. 5. After warming up the engine, check for engine oil leaks, correct as necessary.

Revision: May 2004

MA-26

SMA229B
2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)

Changing Spark Plugs (Platinum - Tipped Type)
1. Remove the engine cover using power tool.

ELS000KG
A

2. Remove the intake manifold collector. Refer to EM-122, "REMOVAL" .

3. Remove the ignition coils. Refer to EM-136, "Removal and Installation" .

4. Remove the spark plugs.

5. Install the new spark plugs. Check the gap before installing the new spark, the gap is not adjustable,

replace the spark plug as necessary.

Spark plug

: 20 - 29 N·m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)

Gap (nominal) : 1.1 mm (0.043 in)

Spark Plug Types

Standard type Hot type Cold type

PLFR5A-11

PLFR4A-11

PLFR6A-11

q Use the standard type spark plugs for normal driving conditions.

q The hot type spark plug is suitable when fouling occurs with the standard type spark plug under condi-

tions such as:

frequent engine starts

low ambient temperatures

q The cold type spark plug is suitable when spark knock occurs with the standard type spark plug under

conditions such as:

extended highway driving

frequent high engine revolution

q Do not use a wire brush for cleaning the spark plug tip.

q If the spark plug tip is covered with carbon, a spark plug cleaner may be used.

Cleaner air pressure : Less than 588 kPa (6 kg/cm2 , 85 psi)

Cleaning time

: Less than 20 seconds

q Checking and adjusting the spark plug gap is not required between change intervals, replace the spark plug as necessary.

SMA673B

6. Install the ignition coils. Refer to EM-136, "Removal and Installation" . Ignition coil bolt : 6.37 - 7.54 N·m (0.65 - 0.77 kg-m, 56 - 67 in-lb)

Revision: May 2004

MA-27

SMA806CA
2003 Altima

ENGINE MAINTENANCE (VQ35DE ENGINE)

Checking EVAP Vapor Lines

ELS000KH

1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration.

2. Inspect fuel tank filler cap vacuum relief valve for clogging, and sticking.

Revision: May 2004

MA-28

2003 Altima

CHASSIS AND BODY MAINTENANCE
CHASSIS AND BODY MAINTENANCE Checking Exhaust System
Check the exhaust pipes, muffler, and exhaust mounts for improper attachment, leaks, cracks, damage, chafing, or deterioration.

Checking Clutch Fluid Level and Leaks
If the clutch fluid level is extremely low or below the "MIN" level in the reservoir, check the clutch system for leaks.

Checking M/T Oil
Check for oil leaks. Check that the oil level is at the correct level through the filler plug hole as shown. q Never start the engine while checking the oil level.
Filler plug : 30 - 39 N·m (3.1 - 4.0 kg-m, 23 - 28 ft-lb)

Changing M/T Oil
1. Drain the oil by removing the drain plug. 2. Install the drain plug using a new washer.
Drain plug : 30 - 39 N·m (3.1 - 4.0 kg-m, 23 - 28 ft-lb) 3. Remove the filler plug and fill the transaxle with new gear oil
through the filler plug hole. Check the oil level as shown. Oil grade and viscosity : Refer to MA-12, "Fluids and Lubricants" . Capacity (RS5F51A) : 2.3 (2 3/8 US qt, 2 Imp qt)
4. Install the filler plug using a new washer.
Filler plug : 30 - 39 N·m (3.1 - 4.0 kg-m, 23 - 28 ft-lb)

Revision: May 2004

MA-29

PFP:00100
A
ELS000KI
B

D
SMA211A
E
ELS000KJ
F

H
SMA449C
I
ELS000KK
J

WCIA0022E

ELS000KL

WCIA0022E
2003 Altima

CHASSIS AND BODY MAINTENANCE
Checking A/T Fluid
1. Warm up the engine. 2. Check for any transaxle fluid leaks. 3. Before driving, the fluid level can be checked at fluid tempera-
tures of 30° - 50°C (86° - 122°F) using the "COLD" range on the A/T fluid level gauge.

ELS000KM

LLIA0021E

a. Park the vehicle on a level surface and set parking brake.

b. Start the engine and move the transaxle selector lever through each gear position. Leave the selector lever in the "P" park position.

c. Check the fluid level with the engine idling.

d. Remove the A/T fluid level gauge and wipe it clean with a lintfree paper.

e. Re-insert the A/T fluid level gauge into the charging pipe as far as it will go.

f. Remove the A/T fluid level gauge and note the reading. If the reading is at or below the low side of the range, add the necessary specified A/T fluid through the A/T fluid charging pipe.

CAUTION: Do not overfill the transaxle.

SMA051D

4. Drive the vehicle for approximately 5 minutes at moderate speeds.
5. Re-check the fluid level at fluid temperatures of 50° - 80°C (122° - 176°F) using the "HOT" range on the A/ T fluid level gauge.
CAUTION: Firmly fix the A/T fluid level gauge into the A/T fluid charging pipe using the attached stopper, this will provide an accurate reading on the gauge, and will keep the gauge in position while driving.
6. Check the fluid for the following conditions:
q If the fluid is very dark or smells burned, refer to the AT section for checking the operation of the transaxle. Flush the cooling system after repairing the transaxle.
q If the fluid contains frictional material (from the clutches or bands), replace the radiator and flush the cooler lines using a cleaning solvent and compressed air after completing repairs to the transaxle. Refer to CO-31, "RADIATOR" .

SMA853B

Changing A/T Fluid

ELS000KN

1. Run the engine to warm up the transaxle until the fluid is at full operating temperature of 50° - 80°C (122° - 176°F).

2. Stop the engine.

Revision: May 2004

MA-30

2003 Altima

CHASSIS AND BODY MAINTENANCE

3. Drain the A/T fluid by removing the drain plug. Reinstall the drain

plug to the specified tightness using a new drain washer.

Drain plug : 29 - 39 N·m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)

SMA052D
D 4. Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the tran-
saxle with the same volume amount that was drained out.

CAUTION: Do not overfill the transaxle.

Fluid grade

:NISSAN Matic "D" (Continental U.S. and Alaska) or Canada

NISSAN Automatic Transmission Fluid Refer to MA-12, "REC-

OMMENDED FLUIDS AND LUBRICANTS" .

Fluid capacity (with

: 9.2 (9 3/4 US qt, 8 1/8 Imp qt)

torque converter)

RE4F04B/RE4F04W

5. Run the engine at idle speed for five minutes. 6. Check fluid level and condition. Refer to MA-30, "Checking A/T Fluid" . If the fluid is still contaminated, H
repeat step 2 through 5.

Balancing Wheels (Bonding Weight Type)
REMOVAL

ELS000KO

1. Remove the inner and outer balance weights from the road wheel.

CAUTION: Be careful not to scratch the road wheel during removal.

2. Use a releasing agent to remove the double-faced adhesive tape from the road wheel.

CAUTION:

q Be careful not to scratch the road wheel during removal.

q After removing the double-faced adhesive tape, wipe off any traces of the releasing agent from the road wheel. MA
WHEEL BALANCE ADJUSTMENT

NOTE: If a tire balance machine has an adhesion balance weight mode setting and drive-in weight mode setting, M select and adjust in the drive-in weight mode suitable for the road wheels.

1. Set the road wheel on the wheel balancer using the center hole as a guide. Start the tire balance machine.

2. When the inner and outer unbalance values are shown on the

wheel balancer indicator, multiply outer unbalance value by 1.6

to determine balance weight that should be used. Select the

outer balance weight with a value closest to the calculated

value, then install it at the designated outer position of, or at the

designated angle position on the road wheel.

Outer balance weight calculation:

Indicated unbalance value × 1.6 = outer balance weight

Calculation example:

23 g (0.81 oz) × 1.6 = 38.33 g (1.35 oz) = 40 g (1.41 oz) outer

balance weight (closer to calculated balance weight value) NOTE:

SMA054D

The selected balance weight value must be the closest balance weight available to the calculated balance

weight value.

Example:

Revision: May 2004

MA-31

2003 Altima

CHASSIS AND BODY MAINTENANCE
37.4 = 35 g (1.23 oz) 37.5 = 40 g (1.41 oz) CAUTION: q Do not install the inner balance weight before installing the outer balance weight. q Before installing the balance weight, be sure to clean the mating surface of the road wheel.
a. Install the balance weight in the position as shown. b. When installing the balance weight to the road wheels, set it into
the grooved area on the inner wall of the road wheel as shown, so that the balance weight center is aligned with the wheel balancer indication position (angle). CAUTION: q Always use genuine NISSAN adhesion balance weights. q Balance weights are not reusable; always replace with
new ones. q Do not install more than three sheets of balance weight.

c. If calculated balance weight value exceeds 50 g (1.76 oz), install two balance weight sheets in line with each other.
CAUTION: Do not install one balance weight sheet on top of another.

SMA055D

SMA056D

3. Start the wheel balancer.
4. Install the drive-in balance weight on the inner side of the road wheel in the wheel balancer indication position (angle).
CAUTION: Do not install more than two balance weights in one position (angle).
5. Start the wheel balancer. Make sure that the inner and outer residual unbalance values are 10 g (0.35 oz) each or less.
q If either residual unbalance value exceeds 10 g (0.35 oz), repeat the installation procedures.
Wheel balance (maximum allowable unbalance):

Maximum allowable unbalance

Dynamic (at rim flange) Static

10 g (0.35 oz) (one side) 20 g (0.71 oz)

Revision: May 2004

MA-32

2003 Altima

CHASSIS AND BODY MAINTENANCE
Tire Rotation
q After rotating the tires as shown, adjust the tire pressure to specification.
q Retighten the wheel nuts after the vehicle has been driven the first 1,000 km (600 miles). Also retighten the wheel nuts after a flat tire repair, or any type of service where the wheels have been removed and installed. Wheel nuts : 98 - 117 N·m (10 - 12 kg-m, 73 - 86 ft-lb)
Checking Brake Fluid Level and Leaks
q Check the brake fluid level in the reservoir tank. It should be between the "MAX" and "MIN" lines on the reservoir tank.
q If the brake fluid level is extremely low or below the "MIN" level, check the brake system for leaks.
q Release the parking brake lever and check that the brake warning lamp goes off. If not, check the brake system for leaks.
Checking Brake Lines and Cables
Check the brake fluid lines and parking brake cables for improper attachment, leaks, chafing, abrasions, deterioration, and damage. Repair or replace parts as necessary.

ELS000KP
A

D
SMA829C
ELS000KQ
E

G
H
LFIA0096E ELS000KR
I
J

SBR389C

Revision: May 2004

MA-33

2003 Altima

CHASSIS AND BODY MAINTENANCE
Checking Disc Brake
ROTOR Check the rotor condition and thickness. Resurface or replace the rotor as necessary.

ELS000KS

Brake Rotor Specifications
Brake model Standard thickness Maximum runout Minimum thickness (Wear limit)
CALIPER Check the caliper for leakage.

Front CLZ25VD 26 (1.02) 0.07 (0.0028) 22.0 (0.866)

SMA260A
Unit: mm (in) Rear AD9V 9 (0.35) 0.07 (0.0028) 8.0 (0.315)

PAD Check the brake pads for wear or damage.

SMA922A

Brake Pad Specifications
Brake model Standard thickness Minimum thickness (wear limit)
Revision: May 2004

Front brake pad CLZ25VD 11 (0.43) 2.0 (0.079)
MA-34

BRA0010D
Unit: mm (in) Rear brake pad
AD9V 10 (0.39) 1.5 (0.059)
2003 Altima

CHASSIS AND BODY MAINTENANCE
Checking Steering Gear and Linkage
STEERING GEAR q Check the gear housing and boots for looseness, damage and
power steering fluid leaks. q Check the power steering hose connections for leaks. q Check the steering column for looseness.

ELS000KT
A
B
C

WGIA0004E

STEERING LINKAGE

Check the ball joint, dust cover and other component parts for looseness, wear, damage and grease leakage.

Checking Power Steering Fluid and Lines
Check the power steering fluid level in the reservoir tank with the engine off. Use the "HOT" range at fluid temperatures of 50° - 80°C (122° 176°F) or the "COLD" range at fluid temperatures of 0° - 30°C (32° 86°F).
CAUTION: q Do not overfill the power steering reservoir tank.

ELS000KU
F
G
H

q Use the recommended power steering fluid, Genuine NISSAN PSF or equivalent. Refer to MA-12, "RECOMMENDED FLUIDS AND LUBRICANTS" .
q Check the power steering hoses for improper attachment, leaks, cracks, damage, loose connections, chafing and deterioration.
q Check the steering rack boots for accumulation of power steering fluid indicating an internal leak.

I
SST850C
J
K
MA

Axle and Suspension Parts
Check the front and rear axle and suspension parts for excessive play, cracks, wear, or other damage. q Shake each wheel as shown to check for excessive play. q Rotate each wheel to check for abnormal noise.

M
WGIA0004E ELS000KV

Revision: May 2004

MA-35

SMA525A
2003 Altima

CHASSIS AND BODY MAINTENANCE
q Check the strut mount nuts for looseness.

SMA614
q Check the axle and suspension nuts and bolts for looseness.

q Check the struts for oil leakage or other damage. q Check suspension ball joint for grease leakage and ball joint
dust cover for cracks or other damage.
Drive Shaft
q Check the boot and drive shaft for cracks, wear, damage and grease leakage as shown.

LLIA0019E
SFA392B ELS000KW
SFA108A

Revision: May 2004

MA-36

2003 Altima

CHASSIS AND BODY MAINTENANCE Lubricating Locks, Hinges and Hood Latch
Checking Seat Belts, Buckles, Retractors, Anchors and Adjusters

ELS000KX
A B C D E F
LLIA0017E
G
ELS000KY
H I J K MA M

LLIA0022E

Revision: May 2004

MA-37

2003 Altima

SERVICE DATA AND SPECIFICATIONS (SDS)

Engine Maintenance (QR25DE)
SPARK PLUGS (PLATINUM - TIPPED TYPE)

Standard

Type

Hot

Cold

Plug gap

PFP:00030
ELS000KZ
PLFR5A-11 PLFR4A-11 PLFR6A-11 Nominal: 1.1 mm (0.043 in)

BELT DEFLECTION AND TENSION

Tension of drive belts

Engine Maintenance (VQ35DE)
SPARK PLUGS (PLATINUM - TIPPED TYPE)

Standard

Type

Hot

Cold

Plug gap

BELT DEFLECTION AND TENSION

Auto-adjustment by auto tensioner

ELS000L0

PLFR5A-11 PLFR4A-11 PLFR6A-11 Nominal: 1.1 mm (0.043 in)

Deflection adjustment

Unit: mm (in) Tension adjustment

Unit: N (kg, lb)

Used belt

Limit

After adjustment

New belt

Used belt

Limit

After adjustment

New belt

Alternator, Air conditioner compressor

7.0 (0.28)

4.2 - 4.6 (0.17 - 0.18)

3.7 - 4.1 (0.15 - 0.16)

294 (30, 66)

730 - 818 (74.5 - 83.5, 164
- 184)

838 - 926 (85.5 - 94.5, 188
- 208)

Power steering oil pump

11.0 (0.43)

7.3 - 8.0 (0.29 - 0.32)

6.5 - 7.2 (0.26 - 0.28)

196 (20, 44)

495 - 583 (50.5 - 59.5, 111.3 - 131.1)

603 - 691 (61.5 - 70.5, 135.6 - 155.4)

Chassis and Body Maintenance
WHEEL BALANCE

ELS000L1

Maximum allowable unbalance

Dynamic (at rim flange) g (oz) Static g (oz)

10 (0.35) (one side) 20 (0.71)

Revision: May 2004

MA-38

2003 Altima

FrameMaker SGML 5.5.6p145 Acrobat Distiller 4.05 for Windows