misfire after warm up
#1
misfire after warm up
My 98 Lumina runs like a champ the first run of the morning (taking the kid to school). After turning off and restarting I get a flashing "service engine" and cutting out on acceleration, slight rough idle, and runs a bit more hot than normal.
Scanner at autozone says misfire on #3 cylinder. What would cause a misfire after warm up, but not after a cold start?
Thanks!
Scanner at autozone says misfire on #3 cylinder. What would cause a misfire after warm up, but not after a cold start?
Thanks!
#2
pulled #3 plug and it is nice and clean, the gap eas a little wide, I reset it to 60 and put it back, no change on the misfire.
Should I replace the plugs and wires? how can I tell if it is the inector?
Should I replace the plugs and wires? how can I tell if it is the inector?
Thread
Thread Starter
Forum
Replies
Last Post
midnightrumbler
Silverado, Sierra & Fullsize Pick-ups
0
June 27th, 2010 3:47 PM
drmartin
Silverado, Sierra & Fullsize Pick-ups
0
March 22nd, 2010 9:26 AM
philgethifi
Silverado, Sierra & Fullsize Pick-ups
16
May 27th, 2009 11:52 PM