99 Hoe roar

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ncdrtyhoe

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I have a 99 Tahoe LT 4wd. When I use the a/c in stop and go traffic I have a roar from the engine bay if I give it full throttle for a couple of seconds it will stop but once I stop at a light it will start back. Also the next morn it will do it without the a/c on. But once I get over 30 mph it will stop and not do it again until I use the a/c again. Any thoughts on this???
 

puckhead

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Sounds like your fans kicking on. I *think* they turn on when the a/c is on too. I dont know why they would come on in the morning though
 

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