201706 - Call 7

St. Paul
Dick feels a vibration and hears a buzzing noise when his Voyager hits 2500 RPM. A mechanic suggested hanging a weight from the catalytic converter, so Dick hung a 16 lb piece of steel but it didn’t solve the problem. The vibration is there in neutral and when the car is moving, so Tom and Ray think it’s likely a sympathetic vibration from a loose heat shield, or inside the catalytic converter.