Why did my Serpentine belt come loose?

1998 PLYMOUTH VOYAGER
180,000 MILES
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MIKOB
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Was driving and the power steering got real hard and van started overheating. I pulled over before it got all the way in the red...twice but made it home. There wasnt any smoke or anything but when I lifted the hood I saw my (new) serpentine belt just hanging there. it is not torn, cracked or has any abrasions. what could have caused this?
Nov 6, 2011 at 11:38 PM
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SATURNTECH9
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A bad belt tenisor have you checked that yet?
Nov 6, 2011 at 11:46 PM
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MIKOB
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my vehical is a 1998 plym voyager! one pully is kind of loose!! see diagram attched!
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Nov 7, 2011 at 12:47 AM
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SATURNTECH9
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The one in red is just your idler pulley it just spins with a bearing.The one in blue is your belt tenisor thats what keeps your belt tight if thats loose and wobbley thats your problem bad belt tenisor.
Nov 7, 2011 at 1:09 AM
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MIKOB
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Thank you! I will update after repairs.
Nov 7, 2011 at 1:37 AM
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MIKOB
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Thank you! I will update after repair.
Nov 7, 2011 at 1:38 AM
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SATURNTECH9
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Your welcome keep me posted.
Nov 7, 2011 at 1:47 AM
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MIKOB
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Update: The mechanic put my belt back on and couldnt give me a reason why! I mentioned the tensioner
And he said it could be. Sad face. So I am hoping its just . Everything seems fine for now. Thank you!!
Nov 10, 2011 at 1:58 AM
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SATURNTECH9
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Your welcome keep me posted on what happens.
Nov 10, 2011 at 4:04 AM