Car running terrible

Tiny
MOSSYOAK
  • MEMBER
  • 1999 BUICK LESABRE
  • V8
  • FWD
  • AUTOMATIC
  • 160,000 MILES
Buick Lesabre starting stalling, extremely high idle and the smell of burning rubber under hood
Friday, January 21st, 2011 AT 11:53 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. Vacuum leak
5. Fautly fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
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Saturday, January 22nd, 2011 AT 6:26 AM

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