Coil Pac in my 2004 Envoy
Coil Pac in my 2004 Envoy
My 2004 gmc envoy vibrates when idling at lights ect... I was told it may be the coil pac.. Wat is the coil pac and can it be that... Thanks
Re: Coil Pac in my 2004 Envoy
It could be a coil. It could be a plug. It could be a problem with a fuel injector. Is your check engine light on? Has your check engine light come on and then gone off? You should scan your engine and see if there is a cylinder that has low contribution. Misfire. How bad is the vibration?
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Re: Coil Pac in my 2004 Envoy
Vibration not that bad, engine light is on got that checked nd the code said tune up nd cam sensor can that be why the vibration... Hav not driven it since....
Re: Coil Pac in my 2004 Envoy
yes, the information you received could be what your vibration is. But you should write down what the actual codes were so they can be used to help diagnose problems that you have.
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