Skip the auto shop - Our mechanics make house calls

Q: Whining sound - possible rear differential problem?

asked by on

My car makes a whining sound when I accelerate and an air-brake sound when I decelerate. Through my online research, I am assuming that this is a problem with the rear differential. Can I say with certainty that the problem is the rear diff?
My car has an automatic transmission.

Hi there:

You would be correct to assume that this noise may be caused by damage to the differential. It may be as simple as needing to change rear differential fluid or perhaps a worn down axle or other internal component causing this sound. To be certain, I’d recommend having one of our local mechanics completing a car is making a noise inspection which will allow them to test drive and diagnose the source of your problems, so the correct repairs can be made.

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!

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: Ruined the charcoal canister, can I fix the problem?

Your question as to whether you can move it, I would answer no. I don’t recommend moving it, since it’s designed to work from it’s location. The matter of there being a way to prevent fuel from getting into it...

Q: Engine starts, runs and drives initially but randomly it will die when you lift on the throttle approaching traffic lights/signs.

This is a common sign of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Q: Car won't pass inspection due to various issues with shocks, strut, coil springs. Is it better to get both sides done or only one?

Hi there: Anytime front end components are faulty, they should ALWAYS be replaced in pairs. Example; if you've got a bad driver side strut, the passenger side needs to be replaced as well. The reason for this is safety; and...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.