GM 3.6L Timing Chain and Reluctor Ring Problems

Application

• GM 3.6L Engines (2006 – 2015)

Overview

The 3.6L engine in the applicable model years is subject to timing chain stretch and crankshaft Reluctor ring movement causing trouble codes, engine surging and possibly an engine no start condition. A wide variety of trouble codes may set to include P0008, P0009, P0016, P0017, P0018, or P0019. The timing chains and Reluctor wheel should be inspected whenever servicing these vehicles. The historical GM bulletin PIP3423P (August 9, 2018) specifies crankshaft replacement if reluctor movement is confirmed. That revision does not support the earlier claim here about a later standalone reluctor repair; verify the current procedure for the exact application.

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The included photographs from GM service bulletin PIP3423 detail the problem visually, but the solution does become very in depth. Access and engine-removal requirements depend on the exact vehicle and current service procedure. If the timing chains have slack beyond the specification it is recommended to replace all components associated with the timing chains.

Poor oil change intervals can be an associated cause of these problems and it is possible other damage may have occurred within the motor. The codes and photographs here do not establish whether engine replacement is needed. A motor oil analysis could detail the amount of steel particles in the engines lubrication system to aid in the correct method of repair.

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For an overview of the GM 3.6L timing chain and its problems refer to: GM 3.6L Timing Chain Overview

Continue to the timing-chain diagnostic guide before choosing a repair procedure.