ROUGH IDLE

  • Tiny
  • Steve Smith
  • Chrysler Concorde

I recently bought a 96 Chrysler Concorde with 118,000 miles. It has a 3.5 engine. Idle is very rough and acts as if the engine will die, but as of yet has not. I have checked codes both with the on board computer and at a shop. No codes showing. I am at a loss because the car drives well down the road, gas mileage is good, and there is no smoke.

Saturday, January 20th, 2007 AT 8:13 AM

3 Answers

  • Tiny
  • Bruce Hunt
  • Expert
  • 3,761 posts

Indications are that the automatic transmission control unit has failed. Replace.

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Tuesday, November 14th, 2006 AT 2:39 PM
  • Tiny
  • rasmataz
  • Member

Try cleaning out the throttle body-check the EGR for carbon-also clean idle speed control or idle air control.

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Sunday, January 21st, 2007 AT 12:49 AM
  • Tiny
  • stratus98
  • Member

Could also be a clogged catalytic converter. Does your exhaust smell like rotten eggs?

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Sunday, January 21st, 2007 AT 3:47 AM

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