Truck noise troubleshooting

[Woodchuck]

Sounds like its coming from the hub.  Is that the carrier?  I was thinking about replacing the whole hub.


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00 Silverado, uses a hub/bearing assembly on the front. They go through them regularly to say the least. Very very very likely your culprit. 

[jackelope]

Sounds like its coming from the hub.  Is that the carrier?  I was thinking about replacing the whole hub.


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00 Silverado, uses a hub/bearing assembly on the front. They go through them regularly to say the least. Very very very likely your culprit. 

That's a hub. I replaced 7 of them in my old 2002 Silverado. I got pretty good at them. Theoretically the noise should get louder when you're turning gradually to the right if it's a left hub.

[Stein]

OK, follow up post.  If you guessed the wheel bearing, you are correct!

If you guessed the u-joint, you are correct too!  Lucky me!

I replaced the hub assembly and the steady noise went away.  Surprisingly, the vibration over bumps didn't.  Before I did the hub, I put it back in the air and checked the rear, driveline and both joints and everything looked fine.  I spun the wheels and driveline and it all looked good.

So, I dropped the driveline and sure enough the front joint was bad.  That surprises me because I've only messed with the rear one that ends up in the water a couple times a year launching at low tide.  Back one was fine, front was bound up.

Back to the store, a bit of cussing and hammering and it's all back together, no noise, no vibration, good as new.  Thanks to Chevy for having 157 driveline/yoke combinations and using a different u-joint for every one, that makes finding the right part real awesome.  Aluminum shaft, steel yoke, extended cab, 4x4, 3 door (early year production vs 4 door), 1.063 diameter, non-greaseable, one-piece shaft, no center bearing, transmission side for the win.

[Fl0und3rz]

lol

Let me tell you about my $400 power steering pulley.

[Alchase]

Glad you figured it out! 


I had a similar issue with my 1998 1988 Silverado. Shortly after I bought it in 2001. I would hear a rhythmic thump, thump, thump, low in noise level.

I asked during the test drive about the rythmic noise.
The dealer "Emerald Motors" said it was common the that year of Chevy.

Within a short time, it got much worse.
When I turned to the left it would get even more pronounced.

Had my Spicer U-joints checked out at an independent shop. They were fine.

Then we opened the rear end, and multiple teeth fell out. It had a chunk missing with many teeth from the ring gear. The weird part is the gear oil was pristine, no noticeable shavings. 

So the dealer,  that I bought it from "Emerald Motors" on meridian in Puyallup, I can only infer,

Took the rear end cover off.
Saw the problem, and replaced the broken teeth back in the punkin, and refilled the gear oil.

Definitely tried to cover it up.

I confronted him about it, and he lied his ass off, then when called out, threatening to call the police. Said he felt threatened.

Well I suppose he "might" have felt threatened, 
I can neither confirm nor deny bodily harm was implied. 



I had a detroit locker installed.

Still does not dismiss "Emerald Motors" and that snivelling owner are a ripoff.

I stand by that claim.

[Zardoz]

Glad you got it resolved.    I was going to offer up that it was the Muffler Bearing causing the problem.....

[deerlick]

Make sure you check the blinker fluid too