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alternator squealing

ericqh85

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eric
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stockton ca
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2019 jeep jl
hello everyone i just purchased a 2018 jlu for my wife, and have noticed a squeal when i turn on the jeep or driving. I figured it was an idler pulley or tentioner. When i removed the alternator i noticed it was making noise when i free spun it. Has anyone had this issue. jeep only has 24k miles. also seams like its from the alternator and not the decoupler pulley.

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mwilk012

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2018 Ocean Blue JLU Rubicon
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That noise sounds like the decoupler pulley.
 
 







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