Buy OEM 2006 Buick Part # 12637743 (12599716, 12616608, 12633452, 12683547). Engine Timing Chain. Timing Chain - Repair or Replace Your engine's timing chain can stretch over time resulting in a check engine light

Chain. Timing.
2nd Design. Engine Timing Chain. Idler to Cam. Assembly - CM/SHF INTER Drive. Guide. Engine. Secondary.

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 2006 Buick has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.