GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi there, I am Cam. Sorry to hear about this issue.Its possible you have an intake gasket leaking, leaking cylinder, plugged injector or even possibly the valve rocker stud that is pushed into the head has pulled out. The misfire, does it happen all the time or only some of the time?
Ok, I would take the valve cover off and inspect the rocker areas on the drivers side. I suggest this because it’s a simple removal and if you find one rocker pulled out, or an issue, it would be very visible.
I Am only contracted to the website, I am not sure what are trial you are talking about.Are you wanting to continue our conversation?
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