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 Reply

  • Tiny
  • Mhpautos
  • EXPERT
  • 30,743 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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