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1994 Pontiac Bonneville rough running

Tiny
JROUTLEY
  • MEMBER
  • 1994 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 159,000 MILES
My car runs rough when accelerated and stalls when slowin down
Tuesday, February 3rd, 2009 AT 7:42 PM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since you had a tune-up? Are there any codes? Can you check fuel pressure?
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Wednesday, February 4th, 2009 AT 4:04 PM
Tiny
JROUTLEY
  • MEMBER
  • 3 POSTS
No codes. Just changed fuel filter. Unsure how long on the tune up, just bought the car.
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Wednesday, February 4th, 2009 AT 5:03 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Pull the plugs, one at a time, give them the once over.

Run the vehicle in the dark, with the hood raised, If you see electrical fire everywhere, you may need new plug-wires. Check fuel pressure.
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Thursday, February 5th, 2009 AT 7:36 AM
Tiny
JROUTLEY
  • MEMBER
  • 3 POSTS
Thank you.
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Thursday, February 5th, 2009 AT 9:34 AM

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