1993 Chevrolet Truck Repair Question
Topics covered: Body, Throttle body, Engine.
Mileage: 175,000 miles.
Mileage: 175,000 miles.
Asked on August 21, 2011
Throttle Body Noise
93 chevy silverado with 4.3 liter has a loud whistle or squeal coming from the throttle body area at idle. noise stops if throttle is opened any. does not seem like a vaccum leak because engine runs smooth at idle
Answer
Replied on August 21, 2011
Clean out the throttle body and IACV and see what happens