Mechanics

CHEVY HUMMING NOISE AND ERRATIC IDLE

2002 Chevrolet Cavalier

Engine problem
2002 Chevy Cavalier 4 cyl Two Wheel Drive Automatic 59000 miles

I have a 2002 Cavalier with the 2.2L 4cyl. I got 2 problems that I need help with

1. I noticed that when I have the AC on, the car revvs while idling.

2. Just recently it started making a humming noise that sounds kind of like an airplane. It only does it when the car is moving. I am replacing brake rotors cuz they are worn, I dont know if the brakes are dragging or not.

Any help will be appreciated!
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Bansaw21
February 2, 2008.



That airplane noise is probably a front hub bearing. Does the noise change when driving and turning left and right?

Tiny
Mastertechtim
Feb 2, 2008.
It doesnt change when turning, just slowing down. Any chance that it is the wheel bearings?

Tiny
Bansaw21
Feb 2, 2008.