1989 Chevy Caprice Idle problems

1989 CHEVROLET CAPRICE
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JOSHUA52
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Engine Performance problem
1989 Chevy Caprice V8 Two Wheel Drive Automatic alot miles

My car will not keep a steady idle .It goes up and down and is all around irradic it will keep an steady idle then falls into what i think is a mixture problem .have replaced both sensors on the trottle body and sill no dice .What could be the problem?
Nov 29, 2008 at 11:35 AM
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RASMATAZ
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Try cleaning out the idle air control valve and see what happens.
Nov 29, 2008 at 12:14 PM