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2002 Chevy Cavalier Cavalier Humming noise and erratic idle

Tiny
BANSAW21
  • MEMBER
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 59,000 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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Saturday, February 2nd, 2008 AT 10:45 AM

2 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
That airplane noise is probably a front hub bearing. Does the noise change when driving and turning left and right?
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Saturday, February 2nd, 2008 AT 10:47 AM
Tiny
BANSAW21
  • MEMBER
  • 3 POSTS
It doesnt change when turning, just slowing down. Any chance that it is the wheel bearings?
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Saturday, February 2nd, 2008 AT 9:11 PM

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