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False Misfire Strikes Chevy Camaro

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This bulletin applies to 2010-2015 Chevy Camaro vehicles (as well as a number of other GM vehicles).

This bulletin applies to 2010-2015 Chevy Camaro vehicles (as well as a number of other GM vehicles). Some customers may comment about an engine misfire and check engine light with any or all cylinder misfires only on deceleration. This may be the result of debris in the serpentine belt or balancer pulley causing a jump and false misfire or worn engine mounts causing a ground-out concern and false misfire.

Remove the accessory drive belt, and then drive or brake-stall at a signature RPM. If the concern is gone, inspect for debris in the belt or pulleys. If no change is noted, use an engine lift to unload the engine mounts and brake stall at a signature RPM. If the concern is gone, inspect for a ground-out concern with the motor mounts.

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