Gates 22119 Premium Molded Coolant Hose User Manual

1. Product Overview

The Gates 22119 Premium Molded Coolant Hose is engineered to meet or exceed OEM specifications for various coolant applications, including upper, lower, bypass, and heater hoses. This hose is designed for durability and reliable performance within your vehicle's cooling system.

Figure 1: Gates 22119 Premium Molded Coolant Hose. A black, molded coolant hose, designed for automotive cooling systems.

Key Features:

• Collapse Resistance: Specifically-engineered materials resist collapse under vacuum, ensuring consistent coolant flow.
• Electrochemical Degradation Resistance: Engineered to resist electrochemical degradation, a primary cause of hose failure, extending product lifespan.
• Precision Fit: Pre-shaped to fit specific applications, ensuring a perfect seal and easy installation.
• Durable Construction: Features an EPDM tube, synthetic fiber knit reinforcement, and a heat-, ozone-, and chemical coolant-resistant EPDM cover.
• Industry Standards: Meets requirements of SAE 20R4, class D2 and DIN 73411, class A (except for tolerances).

2. Installation Guidelines

Proper installation is critical for the longevity and performance of your Gates coolant hose. Always refer to your vehicle's service manual for specific instructions and safety precautions.

General Steps:

1. Safety First: Ensure the engine is cool and the cooling system is depressurized before beginning work. Wear appropriate personal protective equipment (PPE), including gloves and eye protection.
2. Drain Coolant: Properly drain the coolant into a suitable container for recycling or disposal.
3. Remove Old Hose: Loosen hose clamps and carefully remove the old hose. Inspect the connection points (e.g., radiator neck, engine block) for corrosion or damage. Clean as necessary.
4. Install New Hose: Position the new Gates 22119 hose, ensuring it is correctly aligned and seated on the connection points.
5. Secure Clamps: Install new hose clamps (recommended) and tighten them to the manufacturer's specified torque. Avoid over-tightening, which can damage the hose.
6. Refill Coolant: Refill the cooling system with the appropriate type and amount of coolant as specified by your vehicle manufacturer.
7. Bleed Air: Follow your vehicle's procedure for bleeding air from the cooling system to prevent air pockets.
8. Inspect for Leaks: Start the engine and allow it to reach operating temperature. Carefully inspect all connections for leaks. Monitor coolant levels and temperature.

Note: If replacing a water pump or performing other major cooling system work, it is highly recommended to replace both the upper and lower radiator hoses simultaneously to ensure system integrity.

3. Operating Principles (Role in Cooling System)

The Gates 22119 Premium Molded Coolant Hose plays a vital role in maintaining your engine's optimal operating temperature. It facilitates the circulation of coolant between the engine and the radiator, dissipating excess heat generated during combustion.

Coolant hoses are subjected to extreme conditions, including high temperatures, pressure fluctuations, and constant vibration. Over time, these conditions can lead to hardening, cracking, or softening of the hose material, compromising its ability to function effectively.

4. Maintenance

Regular inspection and timely replacement of coolant hoses are essential for preventing cooling system failures and potential engine damage. Gates recommends proactive maintenance to ensure the longevity of your vehicle.

Inspection Checklist:

• Visual Inspection: Check hoses for cracks, bulges, leaks, fraying, or signs of abrasion. Look for discoloration or hardening of the rubber.
• Hose Feel: Squeeze the hoses when the engine is cool. They should feel firm but pliable. Hoses that are excessively hard, soft, or spongy may indicate internal degradation.
• Clamp Condition: Ensure hose clamps are secure and free from corrosion.
• Coolant Leaks: Look for any signs of coolant leaks around hose connections or along the hose body.

Recommended Replacement Intervals:

While specific intervals may vary by vehicle manufacturer, it is generally recommended to inspect and consider replacing coolant hoses at:

• 90,000 to 100,000 miles: This is a critical mileage for inspecting and potentially replacing cooling system components.
• Every 4-5 years: Even if mileage is low, rubber components can degrade over time due to exposure to heat and chemicals.

Pro Tip: When replacing a water pump, timing belt, or performing other major cooling system repairs, it is a best practice to replace all associated belts, tensioners, pulleys, and coolant hoses for a complete and reliable system overhaul.

5. Troubleshooting

Issues with coolant hoses often manifest as symptoms of a failing cooling system. Early detection can prevent more severe engine damage.

Common Symptoms of Hose Failure:

• Coolant Leaks: Visible puddles of coolant under the vehicle, especially after it has been parked.
• Overheating Engine: The engine temperature gauge rises above normal, or the engine overheats.
• Low Coolant Level: Frequent need to add coolant to the reservoir.
• Steam from Engine Bay: Steam or smoke emanating from under the hood, often accompanied by a sweet smell (coolant).
• Damaged Hose Appearance: As noted in the maintenance section, visual signs of degradation.

Action:

If you observe any of these symptoms, it is crucial to address the issue promptly. A failing coolant hose can lead to significant engine damage due to overheating. Consult a qualified mechanic or refer to your vehicle's service manual for diagnostic and repair procedures.

6. Specifications

7. Warranty and Support

For specific warranty information regarding your Gates 22119 Premium Molded Coolant Hose, please refer to the documentation provided with your purchase or visit the official Gates website. For technical support or further inquiries, please contact Gates customer service.

You can also visit the Gates Store on Amazon for more product information and resources.