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

2003 CHEVROLET TRAILBLAZER
140 MILES • 6 CYL • 2WD • AUTOMATIC
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JENDUFRESNE33
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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??
Oct 9, 2020 at 3:38 PM
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ASEMASTER6371
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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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Oct 9, 2020 at 3:57 PM