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Old 03-04-2024, 06:16 PM   #5
Chevy nutcase
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Join Date: Mar 2021
Location: Hershey Pennsylvania
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Re: What have I done? Video attached: Bad sound after oil change on ol' Blue

That's definitely the fan hitting something. Call me crazy but perhaps letting the clutch fly ripped one of the motor mounts just enough that now the fan is pinging that "shroud" that gm graciously put on there. Take the belt off and spin the fan to pin down what it's hitting
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