Manuals+

DTC P0016, P0017, P0018, P0019, P0008, P0009 Diagnostic Information

Applicable Vehicles

Applies to vehicles equipped with 2.8L LP1, 2.8 LAU, 3.0 LF1, 3.0 LFW, 3.6L LY7, LLT, and LFX engines.

Note: This information supersedes previous bulletins (PIP3423J) and has been updated for current models and model years.

The following diagnostic information may be helpful for vehicles exhibiting the described symptoms.

Condition/Concern

Vehicles equipped with 2.8L LP1, 2.8 LAU, 3.0 LF1, 3.0 LFW, 3.6 LFX, 3.6 LLT, or 3.6 LY7 engines may display two or more of the following Diagnostic Trouble Codes (DTCs): P0016, P0017, P0018, P0019, P0008, or P0009.

Recommendation/Instructions

If the described concern is present, inspect for loose timing chains or tensioners.

If the root cause is not identified after following standard SI diagnostics, the following may be helpful:

The crankshaft position sensor reluctor wheel, pressed onto the crankshaft, may have shifted its position.

Refer to the accompanying visual aids for precise location identification. On certain applications, it may be possible to inspect this area using a borescope inserted through the crankshaft sensor hole, without needing to remove the oil pan.

If the reluctor wheel has moved, the crankshaft should be replaced.

Visual Aid 1: Depicts the actual measurement of a correctly positioned reluctor wheel. The measurement is between 25 to 26 mm, taken from the end of the machined surface of the crankshaft throw to the edge of the open space on the reluctor (approximately 3.5 teeth).

Visual Aids 2 & 3: These images compare a correctly positioned ("GOOD") reluctor wheel with a misaligned ("BAD") one. The image labeled "BAD" shows a crankshaft with a shifted reluctor wheel.

Note: The reluctor wheel can be offset either clockwise or counter-clockwise. Either type of offset will result in the aforementioned DTCs.

Note: The balance hole on the crankshaft does not affect the determination of whether the reluctor has slipped.

It is crucial to follow this diagnostic and repair process thoroughly, completing each step as outlined. If the vehicle's condition is resolved before all steps are finished, the subsequent steps are not required.

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