2005 Chevy Malibu misfiring

Tiny
MARLO KITCH
  • MEMBER
  • 2005 CHEVROLET MALIBU
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 91,000 MILES
I shut my car off for apprx 15 minutes then restarted it now it is misfiring. I have replaced the sparkplugs, coilpack, mapsensor, cadillac convertor what else could it be?
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Tuesday, September 21st, 2010 AT 9:39 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER
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.
10. Throttle position sensor.
11. Idle air control valve.
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Tuesday, September 21st, 2010 AT 9:47 AM

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