2004 Chevrolet Malibu Repair Question
Topics covered: Engine, Body, Idle air control valve.
Mileage: 67,000 miles.
Mileage: 67,000 miles.
Asked on January 11, 2011
Engine sounds up and down
Engine sounds up and down : when i turn it on the engine doesnt sound like one tune ,,the sound is up and down and even when i drive or stop at stop sign i can the sound is waxing and waning
Asked by shadim77Answer
Replied on January 17, 2011
If the idle is going up and down, check for vacuum leaks and check the idle air control valve (IAC). It is located on the throttle body and is responsible for maintaining a steady idle.
