Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** you for the question. Can you tell me how many miles are on the vehicle?
Most commonly on this engine it is either a clogged injector or an issue with the variable valve timing. Most of the time it is the timing as it tends to only cause this at idle.
The valve timing is not adjustable. This is controlled by the computer. This only occurs if the valve timing solenoids are not functioning or if the oil pressure is low.