WHY IS MY CAR RUNNING ROUGH AT IDLE?

1988 BUICK PARK AVENUE
250,012 MILES • 6 CYL • FWD • AUTOMATIC
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IMA_OLDS_MAN
  • MEMBER
  • 1 POST
i have change wires, plugs, coil pk,and my car still runs rough?
Dec 13, 2007 at 2:45 PM
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MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
Only at idle? if so look at the Idle air control valve, it's bolted to the throttlebody...
Dec 13, 2007 at 2:51 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,354 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.


Sep 19, 2024 at 3:15 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.