Need help tracking down and fixing a squeak on 2001 Tahoe

daddy

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Okay, I've been hearing this squeak on the Tahoe and as of yet, I have not been able to track it down and silence it.

I've checked all of the shock mounts and made sure I didn't over-tighten anything when I put the lowering kit on. Everything seems normal but the squeak is still there. I've hit everything I can imagine with penetrating lubricants - trailing arms, sway bars, shock mounts, spring seats, etc.

It doesn't happen when I stand on the bumper and jump up and down and it doesn't happen under normal driving conditions. It only seems to happen when going slow and flexing the rear suspension. Oddly though, it doesn't happen in reverse over the same bump that will cause the sound when going forward. Again, I've jumped up and down and tried to create as much lateral movement as possible while doing so and I can't make it happen.

Ideas?
 

DV2000NJ

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Is it more of a creak, or mild chirp?

I've got a mild chirp that I can't track down.
 

daddy

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Is it more of a creak, or mild chirp?

I've got a mild chirp that I can't track down.

Creak.

Unfortunately, I couldn't tell you if it was there before the drop or not since everything happened so fast. I didn't even notice until just the other day when I didn't have the radio turned up. :D
 

Zembonez

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Body mount.
 

daddy

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Body mount.

I thought about that and sprayed those too as best I could. Not saying it's not though.

The u-joints look to be original, there's no play in them but the whole forward under flex but not in reverse thing had me wondering. Could that be a possibility???
 

Zembonez

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GMT800s are known body mount creakers. I'd crawl under with an impact and loosen one at a time and lube the hell out of them before tightening beyond tight.
 

daddy

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GMT800s are known body mount creakers. I'd crawl under with an impact and loosen one at a time and lube the hell out of them before tightening beyond tight.


Another night on the garage floor. :D
 

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