What is your question?
·
·
What is your question?
I cleaned the throttle body changed valve cover when I shift into neutral it stops it has new plugs and coils. I had for diagnose it and they said #1 plug was failed and bad coil. I changed them all. Still same problem Everything else runs great
1 Reply
Reckon the motor mounts could be worn and causing vibration at idle - transmission in gear.. That is definitely a possibility.. Misfire should be more persistent - occur while driving down the highway.
Rough idle can also be due to a vacuum leak - look around - you may have created one.. NOW > The check engine light should be on if problem is within engine operating systems - which brings me back to engine mounts .... Just saying. Good luck!