1998 Chevy Metro Car Misfiring

Tiny
ICETAB
  • MEMBER
  • 1998 CHEVROLET METRO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 77,000 MILES
Hi. I haven't had any troubles with the car until now. Service Engine Soon light comes on. I took it in they said that the code said it was misfiring. The motor sounds like it's shaking and it backfires pretty good. Checked the wires they looked good. Changed the plugs and it ran fine until the engine warmed up. Any ideas?
Thursday, March 4th, 2010 AT 7:07 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:
1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
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Friday, March 5th, 2010 AT 12:03 AM

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