IACV ISSUES

  • Tiny
  • ncb123
  • 1990 Mazda 929
  • 6 CYL
  • 68,000 miles

High idle, idle surging in park when engine is warm. A mechanic cleaned the iacv and it worked fine for about 2 hours. I shut the car off and it sit for about 4 hours came back and had the same high idle issues.

Thursday, December 9th, 2010 AT 4:49 AM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,858 posts

Replace the idle control motor, if cleaning does not fix this you normally require a new unit.

Mark (mhpautos)

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Thursday, December 9th, 2010 AT 9:56 AM

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