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International Automotive Technicians Network
Re: 2005 Chevrolet Cavalier
Posted to Technical Discussion Forum on 5/6/2024

I'm going to guess one or more sticking exhaust valves.

Remove the cam cover, apply a transmission fluid/acetone mix or your favorite carbon remover on the exhaust valve stems, crank engine over a few times. Repeat the process three more times, the last time... Login to read more.