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After replacing the water pump and A/C compressor there us a constant chirping noise coming from the engine

Tiny
JENDUFRESNE33
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140 MILES
Engine sounds like there is a birds nest in the engine and constant chirping. I just had the water pump and AC compressor replaced a week ago and there's been chirping noise constantly until the vehicle has been driven for about an hour straight. The only time I've ever heard a noise like that is when I had to replace the belt a couple if months ago. Any ideas? Anyone?
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Friday, October 9th, 2020 AT 3:38 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I would start by removing the drive belt and starting the motor and see if the noise is still there. That will tell you it either one of the driven pulleys that is making the noise.

https://www.2carpros.com/articles/chirping-noise

https://www.2carpros.com/articles/car-squeaking-noise

The tensioner is a common failure not keeping the tension correct and the belt wears and the metal ribs start to show.

Roy
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Friday, October 9th, 2020 AT 3:57 PM

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