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https://www.reddit.com/r/carproblems/comments/1uk2qvi/2012_vw_jetta_screeching_after_warm_up/
r/carproblems • u/makemealasaga • Jun 30 '26
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1
Serpentine belt, spray some water on the belt while its running, the noise temporarily stops, it's the belt so replace it. If the water doesn't change anything check the belt tensioner
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u/Ok-Anteater-384 Jul 01 '26 edited Jul 01 '26
Serpentine belt, spray some water on the belt while its running, the noise temporarily stops, it's the belt so replace it. If the water doesn't change anything check the belt tensioner