Skip the auto shop - Our mechanics make house calls

Q: Whining when accelerating and slight grinding when letting off the gas.

asked by on

I recently changed the rear differential oil on my 2007 Impreza. Two weeks went by and it started to wind and I refilled my transmission fluid as well. Now that my car whines I'm sure it is coming from the rear end but I recently changed the rear differential fluid before it started whining. Also around Sunday night a slight grinding noise appeared but I don't know if it is from the front or rear.
My car has a manual transmission.

Hi, thanks for writing in. I don’t wish to 2nd-guess, but your symptom description suggests that either the differential or the transmission may have been run low on fluid, but was refilled after a couple of weeks? Not clear on the sequence. After checking that both differentials and the transmission,now have correct fluid levels and correct lubricants, if you still have gear whine or grinding, something is amiss (perhaps a bad bearing), and needs to be checked out. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this grinding issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Whining when accelerating and slight grinding when letting off the gas.

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: Transmission will not shift out of 1st gear

Hello there, thank you for asking about your 2006 GMC Sierra 1500 HD. If your vehicle will not shift out of first gear, the problem is not the fuses. The problem could be a shift solenoid, but more than likely,...

Q: Shuts down as soon as foot is taken off accelerator. BUT isn't smooth when kept running. It vibrates. Shakes

Hi there. If you smell fuel and are having acceleration issues, it is more likely than not that you have a fuel leak under the hood of your Subaru Legacy. This can be caused by a damaged fuel system connector,...

Q: My engine/transmission has a rough/growling when in gear and at acceleration.

Hello, thank you for writing in. Everything you have done up to this point has been valid. However, there are still an a high number of possible components that can cause these symptoms. You will want to spend some time...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...