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S&T Series Blazer, Bravada, Envoy, Jimmy, Rainier, Trailblazer, Xtreme Idle Air Control (IAC) Valve Repair Guide - AutoZone
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Idle Air Control Valve testing with 12v battery.How to check IAC Valve good or bad an easy way. - YouTube
GM 3800 Service Tips, Techniques, and Advice - Cleaning the Idle Air Control (IAC) Valve The IAC valve controls the amount of air the bypasses the throttle plate, and is used to
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