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Rough idle

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Old 02-02-2013, 07:49 PM
Sam Ford's Avatar
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Default Rough idle
I have a 94 S10 blazer 4x4 ive done a complete tune up fixed all the vacum lines and it still has a rough idle! But other than that it runs fine! Help please ty??
 
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Old 02-02-2013, 07:51 PM
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clean the iac. its on the throttle body. it'll have a little piston lookin thing. clean it with some brake cleaner,and clean its passage in the body. should help.
 
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