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Blake Wiehe

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    2004 GMC Sierra 1500 5.3L

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  1. 2004 GMC Sierra 1500 LM7 5.3L 4x4 I'm getting a high pitched squeal at around 2000 rpm, especially when the truck is cold. I'm wondering if anyone else has experienced this or knows what the issue is. Not sure if it's related, but my knock sensors were recently replaced. YouCut_20211025_171700637.mp4
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