my ac pump has been off the car for some time. that originally did make alot of noise and i took the belt off and the noise went away cause the pump was shot...then i did a weight reduction....
i am going to try driving it real quick with the belt off to see if i can make the noise. but i had the belt off, tried the old tensioner, tried a new belt, sprayed wd40 all over the belt, and the backside as well. also tried turning all the pulleys etc etc. i would think it is one of the smooth pulleys either the idler or the water pump. also just had the cam replaced could they have messed up putting the crank pulley back on? the noise started after i raced someone. lol
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00 T/A NBM
04 Silverado SS - Sold 
00 Trans Am WS6 NBM - Sold
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