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Idle Air Control Valve

Tiny
CHAS662
  • MEMBER
  • 1994 CHEVROLET SILVERADO
Engine Performance problem V8 Two Wheel Drive Automatic

Engine idles low and oil pressure low when engine is idling. How do I get the engine to idle faster
Wednesday, November 10th, 2010 AT 9:28 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,282 POSTS
It sounds like you have a vacuum leak or the IAC motor needs to be replaced , here are some guides to help us get the problem fixed. These engine where famous for blowing the throttle body gasket out.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

and

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Please let us know what you find.

Cheers, Ken
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Sunday, September 17th, 2017 AT 2:30 PM

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