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  1. #1

    Default 2011 Silverado fan squeel

    I just notice the past few days that my fan will squeal when I turn the truck off. I think it might be the auxiliary fan. It isn't a constant squeal. It does it when the fan is slowing down. Anyone have this problem? Is it something I can do- grease? I'm about to go back to school so I would like to get it fixed. Thanks!

  2. #2

    Default

    Quote Originally Posted by heatharnold View Post
    I think it might be the auxiliary fan.
    ????????

    Is the noise under the hood, or under the dash?
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  3. #3

    Default

    Quote Originally Posted by RayVoy View Post
    ????????

    Is the noise under the hood, or under the dash?
    The noise is under the hood. I'm pretty sure it is the fan. It only makes the noise after the truck shuts off and the fan is winding down. I'm just wondering how to stop it. I don't really want to go to the dealer unless it is something big.

  4. #4

    Default

    That fan should be electric, if you spin it (truck off and engine cold), does it make a noise?

    I guess the problem I'm having, is sometimes the fan may not be on when the engine is turned off (thermostat controlled), is the noise always there?

    If there when fan is not spinning, it is probably in the belt system, maybe slipping, maybe a little wear. maybe one of the units being spun by the belt.

    If you need a new fan, I'd have it changed under warranty; if one of the belt driven units, ditto; if belt, probably cheaper to change it yourself.
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

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