1998 Pontiac Grand Am

Tiny
SKROGER
  • MEMBER
  • 1998 PONTIAC GRAND AM
1998 Pontiac Grand Am 6 cyl

My car is putting when I slow down or stop or put it in park.
Wednesday, October 20th, 2010 AT 9:51 AM

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.
10. Throttle position sensor.
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Monday, October 25th, 2010 AT 1:40 AM

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