Idle air control valve?

Tiny
DONALFANO
  • MEMBER
  • 1991 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 165,000 MILES
Enter your question.I have a 91 mustang 5.0 5 spd. The car hesitates and wont idle down. It will stay at about 1500 rpm as I come to a stop and will idle at around 1000rpm at a stop.
Monday, November 29th, 2010 AT 4:04 PM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Is the check engine light coming on at all?
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Monday, November 29th, 2010 AT 4:09 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Yes sounds like a dirty throttle body and or idle air control valve and valve bore, I would clean it all thoroughly first before replacing the valve.
Joe
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Monday, November 29th, 2010 AT 4:09 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
https://www.2carpros.com/articles/how-to-tune-up-a-car-engine
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Monday, November 29th, 2010 AT 4:10 PM

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