What could cause my car running rough and having a cyclometer 3 misfire?
Every few months, especially if my car sat without
driving it for a few days, it runs very rough shaking
a lot and when I give it gas it doesn’t want to go. I
replaced the crank shaft sensor twice, cam shaft
sensor, spark plugs, cleaned the throttle body and
other oarts involved with the throttle body, used fuel
injector cleaner and everything was fine for a few
months. Problems again and code came for crank
shaft. Replaced it again. No problems. Still every so
often car runs rough and now a misfire happened in
cylinder 3z this happened a year ago but all I
previously did seemed to fix that issue. Any ideas?
Could be a bad coil. Swap cylinder 3 coil to another cylinder like 4,1 or cylinder 2. See if the misfire follows. If it does then cylinder 3 coil is bad.