Cyl #4 misfire
#1
Cyl #4 misfire
I just picked up a 2000 Jimmy it has a miss on idle but smooths out under acceleration. I changed the cap rotor plugs and wires all ac delco parts. I found a couple bad wires from the set I took off. I still have the misfire at idle and today the #4 cyl misfire code came back. I'm thinking bad injector or spider seeing its the same cylinder everytime and only misfires at idle. This sound about right?
#7
I did the leak down test it stayed above 55 for over 10 mins. I've checked and rechecked my plugs wires cap and rotor I'm confident its not that. Ill check the injector pulse with a noid light when I get home. I just about positive I have a injector spider issue.
#10
Same issue here. Did it turn out to be the injector?
I did all the same things and still have the misfire #4 code haunting me. Was it the injector?