1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

whats this noise -I only know its not belt related

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Old Sep 5, 2017 | 3:10 AM
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Default whats this noise -I only know its not belt related

https://www.youtube.com/watch?v=gvGMMbcCAK4
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Old Sep 5, 2017 | 10:54 PM
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How do you know it's not belt related? Did you take the belt off and run the engine?

Sounds like it might be a pulley to me.
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Old Sep 6, 2017 | 1:23 AM
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Frist thing I did was take off all belts and run engine just long enough to verify same noise was still there. Does it in in P and N and all shifts- goes faster with RPM. Just wondering if anyone out there has heard this before and KNOW what it is.

Last edited by webulone; Sep 6, 2017 at 1:29 AM.
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Old Sep 6, 2017 | 1:24 AM
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spray brake cleaner on the belt...if the noise goes away briefly, its the belt.
remove the belt and run the engine...if the noise is gone its belt/ pulley related

while the belts off...spin all the pulleys by hand and listen for noise...they should spin quiet with no growling.
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