Buy OEM GENERAL MOTORS Part # 12646386 (12586482, 12646387). Engine Timing Chain. Timing Chain - Repair or Replace Your engine's timing chain can stretch over time resulting in a check engine light

CHAIN ASSEMBLY - Timing. Engine Timing Chain.
Engine Timing Chain.

Engine Timing Chain

Timing Chain - Repair or Replace
Your engine's timing chain can stretch over time resulting in a check engine light that comes along with excessive noise from your engine's timing cover. If the chain has broken, which is a rare occurrence, the engine will not start. If your has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.