Car Rpm Low Stuck Air idle air control valve Fix by mechanic. #reels #mechanic #viral #fbreels #fyp Description A stuck air control valve, also known as an idle air control valve (IAC), can cause a car to idle roughly or stall. Here are some things you can try: Reset the valve Disconnect the negative battery cable, remove the throttle body cover, clean the surface, reinstall the cover, and reconnect the battery cable. Clean the valve Spray a carbon cleaner into the valve to remove dirt and grime