Thread: 2000 Gmc Sierra rough idle when cold
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Old 03-08-2008, 11:49 AM
Kelsey92504 Kelsey92504 is offline
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Re: 2000 Gmc Sierra rough idle when cold
I checked the mass air flow sensor and the throttle body and both were spic and span clean. Is the iac the top or bottom sensor on the throttle body on a 4.8L?
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