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Serpentine Belt / Pulley - Constant Squeal

Discussion in '4 Cylinder' started by TroutBum, Dec 25, 2009.

  1. Dec 25, 2009 at 6:28 PM
    #1
    TroutBum

    TroutBum [OP] Well-Known Member

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    I've noticed a little bit of squealing from under the hood in the morning a few times, figured it was just due to the cold / damp weather this fall/winter. Always went away after the truck warmed up a little. Today the squeal has become constant. I'm guessing it's either the belt or a pulley (33,000 miles). I'm going to pick up a new belt tomorrow when the parts store opens. Hopefully that's all it is and it'll be a quick fix...

    Mike
     
  2. Dec 25, 2009 at 6:53 PM
    #2
    TroutBum

    TroutBum [OP] Well-Known Member

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    Hopefully I can find one in stock tomorrow. Thanks for the advice, I'll let you know how it turns out.

    Mike
     
  3. Dec 26, 2009 at 6:57 AM
    #3
    afd23a

    afd23a Well-Known Member

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    i had that problem and replacing the belt fixed it for me.
     
  4. Dec 26, 2009 at 2:06 PM
    #4
    TroutBum

    TroutBum [OP] Well-Known Member

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    For whatever reason, the squealing wasn't nearly as loud today. It's still there, but I have to be outside of the cab to hear it. Couldn't locate any of the pulleys in town, one parts store did have a belt though.

    For now, I might just go with the "drive it until it breaks/gets worse" theory. Hate to just start replacing parts if I can't figure out what is actually wrong. If it gets worse, I'll order the parts and tear into it next weekend.

    Mike
     
  5. Dec 28, 2009 at 1:03 PM
    #5
    VLANDER005

    VLANDER005 Well-Known Member

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    I would start with the belt. Pick up a can of belt dressing and lightly spray the belt. If that takes car of the problem, I would lean towards replacing the belt. If it doesn't, I would lean towards one of the pulleys as taco4x4 said above.
     
  6. Dec 28, 2009 at 1:06 PM
    #6
    mjp2

    mjp2 Living vicariously though myself Moderator

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    If you're replacing the idler pulley, replace the belt too. It's $25 and no additional labor. Better to do it all at once and not have to worry about it for a few years.
     
  7. Dec 28, 2009 at 3:09 PM
    #7
    TroutBum

    TroutBum [OP] Well-Known Member

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    Thanks guys - the squeal went away completely today. However, with the hood open and the defrost on I did notice a slight hum. Don't remember if it did that before, but maybe the AC compressor is on the way out?

    Mike
     
  8. Dec 31, 2009 at 11:24 AM
    #8
    TroutBum

    TroutBum [OP] Well-Known Member

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    Leer 100R
    After being gone for a few days, the squeal came back today. Picked up a new belt, and checked all of the pulleys. I did notice a little slop in the pulley on the tensioner, but everything else seemed ok. Put the new belt on - no more squeal. :)

    Mike
     
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