WHAT CAUSES THE ENGINE TO IDLE HIGH EVEN AFTER ...

  • Tiny
  • Anonymous
  • 1991 Mazda 323
  • 105,825 miles

What causes the engine to idle high even after the engine reaches its normal operatin temperature?

Saturday, February 9th, 2013 AT 5:20 PM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,818 posts

May be a faulty coolant temp sensor and a faulty IAC and also check for engine vacuum leaks, start here.

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Saturday, February 9th, 2013 AT 11:38 PM

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