Serpentine Belt Issues

Discussion in '1996 - 2004 SN95 Mustang -General/Talk-' started by Erich Goldstein, Mar 8, 2014.


  1. Erich Goldstein

    Erich Goldstein New Member

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    Hey everyone. For the past month my serpentine belt as been giving me issues. It'll be fine for about a week or two but after that when I check under the hood, it's been cracking down the middle or wearing. The belt normally splits down the middle and i'm running on half a belt until it snaps. I have a Kenne Bell 1.7L and I've checked the aftermarket idler pulleys (and the rest of them) and I can't find anything wrong with any of the pulleys. Does anyone have any ideas because I'm running low on ideas...and patience.
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  2. Mattstang04

    Mattstang04 Active Member

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    What year is your car? Has this happened on more than 1 belt? Could there be a pulley alignment issue between the supercharger, the idlers it came with and the stock pulleys? Maybe something needs some shimming.
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  3. Erich Goldstein

    Erich Goldstein New Member

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    It's a 2001 and this has recently started happening after the cold spell we had in NY. I've thrown on 3 new belts within a month and a half. The alignment looks fine, i've checked it from top to bottom. I've shimmed the aftermarket idlers that came with it the best I could after the rubber melted and fused with them. The wear seems to always start on the flat side of the belt.
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  4. Mattstang04

    Mattstang04 Active Member

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    If its getting hot enough to melt, makes me think maybe an idler or one of your accessory drives is locking up. Maybe give a listen to each pulley and make sure there isn't any bearing squeal or seizing pulleys. :shrug:
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