[HELP!] Have you ever heard this metal on metal noise?

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seatown

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Hello,

This past Saturday I just started hearing this noise...

I haven't tried to get a better idea of where it is coming from, but maybe someone has heard it before?

2009 Yukon


 

CaptainAmerica1

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That’s what I was thinking. It’d be faster if it was in the motor… gotta be transfer case. Trans would be faster too
 

CaptainAmerica1

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No. It’s always rotating. It’s bolted directly to the flywheel that’s bolted directly to the crank
 

Geotrash

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No. It’s always rotating. It’s bolted directly to the flywheel that’s bolted directly to the crank
I think they were referring to the transfer case when they said TC. If it were the torque converter, I would agree with you.

I can't tell from the video but I would want a mechanic's stethoscope to pinpoint where that sound is coming from. I can't think of any way that a transfer case would make that sound just sitting in park.
 

Doubeleive

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I would start in the engine compartment, take the serpentine belt off, start it up and see if the noise is still there wont hurt anything to run for a minute with the belt off. sounds like a tensioner or pulley to me, if the noise is gone spin stuff by hand to narrow it down. next thing to check if that's not it is to take a rubber mallet and start smacking the cat's and or heat shields.
 

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