Thanks all. I didn't need to change the
Hey man. What did you have to do? Mine says cylinder 2. I've changed all spark plugs and changed cylinder two coil.Problem Solved
Thanks all. I didn't need to change the injector after all. The #4 coil was defective. Thanks again!
And don't forget to make sure that damn spring didn't fall out of the "boot" between the coil and the spark plug. When I dealt with my coil issues, I had two fall out of the boots in my driveway to never be seen or heard from again! Luckily, I'd ordered three new boot kits when I decided to change my plugs, so I had extras!I don't think wemiller53 or the others have been around here for several years, so I think you're out of luck in hearing from them.
However, as wemiller53 said, he replaced the #4 coil and that fixed his misfire problem.
Now onto you.
What OBDII codes are you seeing - P0300? P0304? Any others? You said that you replaced the spark plugs. Dis you use ACDelco 41-103 plugs? If not, that could be your problem right there. What brand of coil did you use? If you did not use something like an ACDelco, Delphi, Denso, Standard Motor Products, or BWD brand ignition coil, then the coil could also be suspect.
Now, if you used ACDelco 41-103 plugs and one of the above mentioned ignition coils, I would first check to make sure the ignition coil is properly seated on the spark plug and that the ignition coil connector is properly seated into the ignition coil socket.
my envoy was doing the same thing so i loosen all of the coils and with it running pulled one at a time up just enough to hear the coil sparking if you do that and no sound its bad even if the code reader dosnt catch itHey man. What did you have to do? Mine says cylinder 2. I've changed all spark plugs and changed cylinder two coil.