MISFIRING ON STARTUP

  • Tiny
  • Laure123
  • 1996 CHEVROLET CORSICA
  • 250,000 MILES

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

Do you
have the same problem?
Yes
No
Sunday, September 18th, 2011 AT 10:31 PM

1 Reply

  • Tiny
  • Promechanic
  • EXPERT
  • 551 POSTS

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.

Was this
answer
helpful?
Yes
No
Sunday, September 18th, 2011 AT 10:48 PM

Please login or register to post a reply.

Other Misfire Idle Questions