Q: Whining from transmission to rear end area 2007 Chevrolet Silverado 1500

asked by on

I've had a whining sound accumulate over the past year or so in the transmission to rear end area. The transmission shifts smoothly up and down. However, i do randomly hear a light growl noise when the transmission downshifts, but its not bad at all. I've done some simple test to try and isolate the issue, but I'm second guessing myself. I've gotten the truck up to 50+mph while it whines, and taken the truck out of Overdrive into Nuetral, and the whine goes away. The whine comes back once placed back into Overdrive gear. I recently replaced the rear end differential ring gear bearings because I spun one. The whining started prior to the rear end bearing issue though, but I'm not ruling out the pinion bearing because I did not change it out. Is it possible that the whining goes away when I take it out of gear because there is no torque being applied to the read differential (if this is a rear end issue)?

Thank you, Blake Tumlinson

My car has 175000 miles.
My car has an automatic transmission.

Hello - your intuition is correct. The ring and pinion gear are severely worn, and will need to be replaced (w/all new ring and pinion bearings) to eliminate the "noise under load" you notice. Setting up a ring & pinion gearset and bearings requires specialized skills and equipment. Check with your local auto machine shop for reliable references and sources for this task.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Whining from transmission to rear end area 2007 Chevrolet Silverado 1500

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My question is about the throttle position sensor

Hi There, The Stabilitrac and traction control systems are operated via wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information simultaneously to the ABS and traction control system which are controlled by...

Q: Car won't accelerate past 3000rpm

This issue could be caused by a variety of things. I would suggest by checking to be sure that the idle air control module is working properly. Also, check to be sure that the throttle body is delivering...

Q: Electronic throttle control

Hi Janice, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.