Whining Noise, help? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Strut · 11-16-2009, 10:00 PM

I've got this whining noise coming from the drive train. Cruising at 65, a steady whine. Cruising and then shift to neutral, it stops.... I was kinda thinking it could be coming from the rear end, but would it stop in neutral?? Any help would be appreciated guys.....thanks.

BAGNDRAGIT · 11-16-2009, 10:02 PM

if you rev the motor in park do you still hear the noise? can you pinpoint the location of the noise?

Strut · 11-16-2009, 10:07 PM

Quote:

Originally Posted by BAGNDRAGIT

if you rev the motor in park do you still hear the noise? can you pinpoint the location of the noise?

No its doesnt do it in park.... Its coming from under the truck. Trans or the rear. I thought it might be the wheel bearings, but wouldnt it do it in neutral too?

Dark Knight · 11-16-2009, 10:09 PM

yep. it's the tranny. the rear end would make noise when in neutral if it was the culprit. Did you check the oil/fluid level?

BAGNDRAGIT · 11-16-2009, 10:16 PM

Quote:

Originally Posted by Dark Knight

yep. it's the tranny. the rear end would make noise when in neutral if it was the culprit. Did you check the oil/fluid level?

Defiantly the trans. and i agree. check fluid levels.

vectorit · 11-16-2009, 10:26 PM

What kind of trans?
What year trans?
What gear ratio in the rear?

Strut · 11-16-2009, 10:42 PM

Quote:

Originally Posted by BAGNDRAGIT

Defiantly the trans. and i agree. check fluid levels.

I checked it not to long ago, I'll check it in the morning.... I havent noticed any leaks in the drive.

unclewatts · 11-16-2009, 11:46 PM

It's not necessarily true that if you put it in neutral that if the whine stops it's not the rear end. If you put it in neutral it unloads the rear end gears which will stop the whine. It could still be something else though. Just my .02.

Dark Knight · 11-16-2009, 11:51 PM

If you want whine, try running a set of 4.56 gears in these trucks. They'll get you an economical 10 MPG. And if you listen real close, you can hear your wallet whining too!

GASWAGON · 11-17-2009, 12:00 AM

Could be the pinion bearings. When you put it in neutral you unload them and the noise will reside. Also if it was rebuilt and the pinion preload wasn't set properly, the crush collar will loosen up and unload the bearings causing the same type noise and problem. Check the yoke any play in-out up down etc. is no good. Drive at a steady speed and moderate throttle make note of the noise and then get of the throttle quickly. If the noise lessens or goes away it's the pinion bearings. Hope this helps Jay

vectorit · 11-17-2009, 12:02 AM

Quote:

Originally Posted by Dark Knight

If you want whine, try running a set of 4.56 gears in these trucks. They'll get you an economical 10 MPG. And if you listen real close, you can hear your wallet whining too!

I got that beat... Try it with a 4 speed, and Rockwell T-221 xfer case, and 4.57 gears!

Music to my ears though

*highperf4x4* · 11-17-2009, 12:45 AM

My bet would be the rear end. I let one get low on gear oil and it started doing the same thing. Filling it back up won't solve it either. Once it starts it will keep doing it until you rebuild it.

Longhorn Man · 11-17-2009, 07:30 AM

i say rear end. autos don't whine all that much.

11-16-2009, 10:00 PM	#1
Strut Registered User Join Date: Oct 2009 Location: Corbin Ky Posts: 247	Whining Noise, help? I've got this whining noise coming from the drive train. Cruising at 65, a steady whine. Cruising and then shift to neutral, it stops.... I was kinda thinking it could be coming from the rear end, but would it stop in neutral?? Any help would be appreciated guys.....thanks. __________________ 1972 Chevy C10 SWB 1999 GMC Sonoma Mini 2008 Yamaha R1 2007 Harley Nightster

11-16-2009, 10:02 PM	#2
BAGNDRAGIT Just Not Low Enough! Join Date: Mar 2009 Location: Phoenix, AZ Posts: 525	Re: Whining Noise, help? if you rev the motor in park do you still hear the noise? can you pinpoint the location of the noise? __________________ NEED ELECTRICAL HELP? ASK ME! 67-72 Full Wiring Diagrams Lots Of Info, TAKE A LOOK 1967 Chevy C-10 Shortbox Bagged 327 4spd Previous: 1971 Chevy C-10 Short Sep I6 Auto (Traded) 1973 Chevy C-20 THE REDNECK BATTLE TRUCK 2001 Chevy Silverado 2Dr 5.3L Shortbox. R.I.P. 1969 Volkswagen Bug This is my first meeting, I have a horsepower problem.

11-16-2009, 10:09 PM	#4
Dark Knight Registered User Join Date: Dec 2008 Location: Pleak, Texas Posts: 420	Re: Whining Noise, help? yep. it's the tranny. the rear end would make noise when in neutral if it was the culprit. Did you check the oil/fluid level? __________________ -1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too) You've gotta be able to stop and steer before you can go fast!

11-16-2009, 10:26 PM	#6
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: Whining Noise, help? What kind of trans? What year trans? What gear ratio in the rear? __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

11-16-2009, 11:46 PM	#8
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: Whining Noise, help? It's not necessarily true that if you put it in neutral that if the whine stops it's not the rear end. If you put it in neutral it unloads the rear end gears which will stop the whine. It could still be something else though. Just my .02. __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) Last edited by unclewatts; 11-16-2009 at 11:46 PM.

11-16-2009, 11:51 PM	#9
Dark Knight Registered User Join Date: Dec 2008 Location: Pleak, Texas Posts: 420	Re: Whining Noise, help? If you want whine, try running a set of 4.56 gears in these trucks. They'll get you an economical 10 MPG. And if you listen real close, you can hear your wallet whining too! __________________ -1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS -1983 Chevy Silverado C1500- 383 stroker, TH400 -1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears -And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket "The only thing we have to fear is fear itself." -FDR (and maybe rust too) You've gotta be able to stop and steer before you can go fast!

11-17-2009, 12:00 AM	#10
GASWAGON AMERICAN IRON ADDICT Join Date: Oct 2007 Location: MA Posts: 299	Re: Whining Noise, help? Could be the pinion bearings. When you put it in neutral you unload them and the noise will reside. Also if it was rebuilt and the pinion preload wasn't set properly, the crush collar will loosen up and unload the bearings causing the same type noise and problem. Check the yoke any play in-out up down etc. is no good. Drive at a steady speed and moderate throttle make note of the noise and then get of the throttle quickly. If the noise lessens or goes away it's the pinion bearings. Hope this helps Jay

11-17-2009, 12:45 AM	#12
highperf4x4 Account Suspended Join Date: Apr 2009 Location: Oklahoma City Posts: 4,709	Re: Whining Noise, help? My bet would be the rear end. I let one get low on gear oil and it started doing the same thing. Filling it back up won't solve it either. Once it starts it will keep doing it until you rebuild it.

11-17-2009, 07:30 AM	#13
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Whining Noise, help? i say rear end. autos don't whine all that much.



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