What causes the engine to idle high even after.

Tiny
ANONYMOUS
  • MEMBER
  • 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
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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