2CarPros - Car Questions & Answers

1996 Chevrolet Corsica Repair Question


Topics covered: Compression, On star, Egr valve.
Mileage: 250,000 miles.

Asked on September 18, 2011

Misfiring on startup

1996 chevy corsica misfires on start up and idle but runs fine at higher speed
i have done a complete tune up and replaced egr valve. nothing helps, engine code says misfire cylinder 3. all tests show #3 running fine. only have misfiring on start up and a very crappy idle
Avatar Asked by laure123

Answer

Replied on September 18, 2011

I would check compression next. Let me know what it is and I can help you more.
If the compression is low it can cause a misfire.

Tiny Answered by promechanic (expert)
556 answers provided