2000 chevy unknown driveline noise?? help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigbeardedbastard · 02-21-2013, 01:06 AM

ok my daily driver is a 2000 chevy 1500 ext cab Z71 4x4 with 180k on the odometer. in the past few days i have noticed a new noise while driving. thinking it was a bad u-joint i changed all the u-joints yet it still exists. i had the 4l60 rebuilt about 5k miles ago by a reputable shop. the noise isnt followed by a vibration that i can notice but i cant pin point it as it seems to echo thru the aluminum driveshaft. i cant tell if it is coming from the t-case or the rear end? while coasting you can hear it but under power it gets louder? the rear wheels seem to be fine bearing wise?? but i am lost as far as my next move. time and $$ shortage are an issue so any help would be greatly appreciated so i can resolve this myself.

thanx
BBB

ky_savage · 02-24-2013, 08:06 AM

I have the same truck (2000)except 2wd and I recently started hearing a similar if not the same noise.
Posted via Mobile Device

**Boog** · 02-24-2013, 09:10 AM

You fellas may be able to put your trucks on a lift and with it running get up under it and maybe narrow it down.

95 S_Trucker · 02-24-2013, 09:38 AM

It sounds like a pinion bearing to me in the rear end. Try driving at a steady speed and manually downshifting the trans to get some engine breaking. Does it make the noise then too?
Posted via Mobile Device

bigbeardedbastard · 02-24-2013, 10:49 PM

Quote:

Originally Posted by 95 S_Trucker

It sounds like a pinion bearing to me in the rear end. Try driving at a steady speed and manually downshifting the trans to get some engine breaking. Does it make the noise then too?
Posted via Mobile Device

you sir are correct! it is the pinion bearing starting to go out. i had my mechanic look at it this weekend. thanks for your help fellas!

Desert.Chevy · 03-02-2013, 10:52 AM

Quote:

Originally Posted by 95 S_Trucker

It sounds like a pinion bearing to me in the rear end. Try driving at a steady speed and manually downshifting the trans to get some engine breaking. Does it make the noise then too?
Posted via Mobile Device

Quote:

Originally Posted by bigbeardedbastard

you sir are correct! it is the pinion bearing starting to go out. i had my mechanic look at it this weekend. thanks for your help fellas!

Thanks for the information.
Posted via Mobile Device

02-21-2013, 01:06 AM	#1
bigbeardedbastard Registered User Join Date: Jan 2013 Location: jax Posts: 29	2000 chevy unknown driveline noise?? help ok my daily driver is a 2000 chevy 1500 ext cab Z71 4x4 with 180k on the odometer. in the past few days i have noticed a new noise while driving. thinking it was a bad u-joint i changed all the u-joints yet it still exists. i had the 4l60 rebuilt about 5k miles ago by a reputable shop. the noise isnt followed by a vibration that i can notice but i cant pin point it as it seems to echo thru the aluminum driveshaft. i cant tell if it is coming from the t-case or the rear end? while coasting you can hear it but under power it gets louder? the rear wheels seem to be fine bearing wise?? but i am lost as far as my next move. time and $$ shortage are an issue so any help would be greatly appreciated so i can resolve this myself. thanx BBB

02-24-2013, 08:06 AM	#2
ky_savage Registered User Join Date: Oct 2010 Location: Harrodsburg, KY Posts: 13	Re: 2000 chevy unknown driveline noise?? help I have the same truck (2000)except 2wd and I recently started hearing a similar if not the same noise. Posted via Mobile Device __________________ 2000 Chevy 1500 Ext. cab

02-24-2013, 09:10 AM	#3
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,559	Re: 2000 chevy unknown driveline noise?? help You fellas may be able to put your trucks on a lift and with it running get up under it and maybe narrow it down. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

02-24-2013, 09:38 AM	#4
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,187	Re: 2000 chevy unknown driveline noise?? help It sounds like a pinion bearing to me in the rear end. Try driving at a steady speed and manually downshifting the trans to get some engine breaking. Does it make the noise then too? Posted via Mobile Device



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