Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
I have a 2001 Jeep Grand Cherokee 4.0L 4x4 with a miss fire. I have replaced the spark plugs twice I have put a new cam position sensor and coil pack I also have replaced 3 of the 6 fuel injectors. Since do all that I still have a mis but no check engine light HELP ME PLEASE!!!!!!??????
When does the misfire occur? Idle, cruise, under load?
Second, do you have an idea of which cylinder is suspect? If not, a power balance test is in order. Once we know which cylinder is weak, and when, we can narrow down the suspects.
It happens at idle under load at cruise all cylinder but one or two cylinder are kicking codes plus it's kicking codes for coil pack I think part of the issue is the crank sensor I put in is bad but it had a constant mis fire in at least one cylinder and would not kick a code
Topic Author
