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WHY IS MY CAR RUNNING ROUGH AT IDLE?

Tiny
IMA_OLDS_MAN
  • MEMBER
  • 1988 BUICK PARK AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 250,012 MILES
I have change wires, plugs, coil pk, and my car still runs rough?
Thursday, December 13th, 2007 AT 2:45 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Only at idle? If so look at the Idle air control valve, it's bolted to the throttlebody.
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Thursday, December 13th, 2007 AT 2:51 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Idling rough can be low compression in one or more cylinders where is a guide that will help you fix it, please read the completed guide before beginning.

https://www.2carpros.com/articles/repairing-engine-rough-idle-issues

Please go over this guide and get back to us.

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Thursday, September 19th, 2024 AT 3:15 PM

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