1993 Ford Tempo High Idling up to 3000rpm

Tiny
BOYONG
  • MEMBER
  • 1993 FORD TEMPO
1993 Ford Tempo

my car's idling getting worst on the first start 2000rpm and when it hot rise up to 3000rpm.
what to do
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Monday, September 14th, 2009 AT 1:33 PM

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Tiny
FIXITMR
  • MEMBER
Sounds like IAC valve is stuck/bad. It's on top backside of throttle body on intake plenum. It has an electric plug to it from underneath. Maybe plug is corroded? Also check for bad vacuum hoses attached to intake plenum. And maybe take off plastic cover from throttle butterfly assembly and check gas pedal cable is working properly and closing butterfly.
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Tuesday, September 15th, 2009 AT 2:25 PM

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