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on startup, very low idling...

Old Mar 17, 2001 | 06:44 PM
  #1  
Ch12i5
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a few days ago i posted that my car wouldn't start...even after a few tries. well, today, i started my car when i got home again (temperature gauge was in the middle). it started, but just barely...the rpms shot up to around 1k but then dropped very low to around 400 or 300...and the car was moderately vibrating. i turned it off, tried again, and the same thing happened. after about 1.5 minutes of waiting, i started it up again, and idling was back to normal..around 750. does anyone know what's going on? any solutions? thanks
Old Mar 18, 2001 | 12:13 PM
  #2  
Daniel B. Martin's Avatar
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Joined: Sep 2000
Posts: 4,601
Originally posted by Ch12i5
a few days ago i posted that my car wouldn't start...even after a few tries. well, today, i started my car when i got home again (temperature gauge was in the middle). it started, but just barely...the rpms shot up to around 1k but then dropped very low to around 400 or 300...and the car was moderately vibrating. i turned it off, tried again, and the same thing happened. after about 1.5 minutes of waiting, i started it up again, and idling was back to normal..around 750. does anyone know what's going on? any solutions? thanks
Two possibilities come to mind...

1) Faulty Engine Coolant Temperature Sensor.

2) Faulty Idle Air Control Valve - Auxiliary Air Control valve.
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