Fast idle

Tiny
CW4910
  • MEMBER
  • 1994 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 132,000 MILES
I have a 95 chevy and when it is cold out the idle RPM is very high and I cann't keep it running tell it warms up. It is a V6 and it idles so high I think it is going to blow up. But when it's warms up it's OK.
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Thursday, January 6th, 2011 AT 5:28 AM

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Tiny
KHLOW2008
  • EXPERT
When engine is cold, the idling speed would be higher than normal and gradually decreases and should be stable after approximately 7 minutes.

If it is too high, the PCM ( engine Computer ) could be getting the wrong signal and increases the idling speed too high for extended periods.

Is the Check Engine Light indicating and have you tried to retrieve for trouble codes?
Check if coolant level is correct.
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Thursday, January 6th, 2011 AT 2:24 PM

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