1990 Ford F-250 engine

Tiny
TUNA25
  • MEMBER
  • 1990 FORD F-250
  • 5.8L
  • V8
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
My truck will start but will not idle. I have fix vacuum lines and check the throttle cable. But I am wanting to know if it is a sensor and which one
Sunday, March 29th, 2015 AT 4:54 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
If there are no vacuum leaks and everything is in good condition, check the idle air control valve (IAC). It is responsible for maintaining the engine idle speed.
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Monday, March 30th, 2015 AT 9:09 AM

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