Will A Bad Iac Cause High Idle?

Will A Bad Iac Cause High Idle? On the other hand, an IAC valve that sticks in the open position will create an idle speed that’s too high. The engine will run fast even though you’re not moving. A bad IAC valve can also cause a surging condition at idle, where the RPMs will increase … Continue reading Will A Bad Iac Cause High Idle?