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New serpentine belt smokes, squeals, and there are metal shavings

While on the highway my temperature light, voltage light, and check engine light came on. I also noticed what felt like a loss of power steering and heat. I figured it was my alternator and I just nursed it home. After 15 minutes I noticed my lights (interior and exterior) dimming and figured my battery was dying. Finally (close to home, thankfully) it died. I had a friend look at it. The serpentine belt had snapped. We took the alternator to an auto parts store to have them test it just to be sure. It tested out just fine. After my friend put the new serpentine belt on, the car started with a jump to the battery. Almost instantly it made an awfully squealing noise (maybe metal on metal) followed by some smoke. We shut the engine off. My friend looked around and noticed metal shavings underneath and around the belt. We are stuck now. Unless I am more ignorant when it comes to mechanics than I think I already am, I believe the serpentine belt is the only belt. At least it's all I see. After skimming this site and a few others I have seen everything suggested from water pump, to pulleys, to ac compressor, to bearings and so on. I guess first of all - is this a problem or natural, the smoke and squeal. I shut the car off immediately as my initial reaction. I didn't give it time to stop in fear it might cause other, bigger issues. Secondly, if it is an issue, what might it be??

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  • A. Roberts Dec 01, 2012

    The vehicle above is a 1991 Chevy Lumina V6 3.1L - not sure why that didn't post, sorry. Please Help! :)



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With the belt off check that all pullies spin freelySounds like the tension or idle pullybearing failure

Posted on Dec 01, 2012


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SOURCE: My 89 toyota corolla started

sounds like you need to replace the power steering pump,of not overheating or loosing coolant,would check water pump,if no power steering sonds like the pump is bad,mechanic depepnding on their ability could change for you,up to you if you want to pay a shop to replace pump.

Posted on Sep 02, 2011

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SOURCE: trying to figure out why i am having squealing issue all new altternator power steering pump pulleys and belts

Belts normally squeal when they slip and they slip because they're not tight enough or in the case of a V belt because they're too narrow. Make sure they're tight enough and they're the right belt.

Posted on Mar 11, 2012

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