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1989 Chevy Suburban idle

Tiny
JUSTALEX13
  • MEMBER
  • 1989 CHEVROLET SUBURBAN
Engine Performance problem
1989 Chevy Suburban V8 Two Wheel Drive Automatic

it has a high idle. I replaced the IAC valve with no improvement.
Sunday, January 18th, 2009 AT 6:18 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Did you clean out the idle air control valve passages thoroughly and test the throttle position sensor-
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Sunday, January 18th, 2009 AT 6:23 PM
Tiny
JUSTALEX13
  • MEMBER
  • 2 POSTS
Thank you I will try that.
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Monday, January 19th, 2009 AT 7:02 PM

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