Q: Rear differential noise.

asked by on August 03, 2017

Hi. I had my rear differential replaced. Since the replacement when I accelerate or slow down I hear a whirling noise or when I turn it makes this thumping noise.

My car has 24000 miles.
My car has an automatic transmission.

Clunking or knocking noise from wheels Inspection $79.99 - $99.99 Get a Quote

Sounds like you need to take it back to the shop where you had it changed. First you want to be sure it has enough of the correct oil. If it turns out it is properly filled, it may be necessary to open it up and have another look. Differentials are a tricky business. There are a number of dimensions in there that need to be carefully set up when the differential is built or you will get unwanted noises and it will wear out more quickly. If you need a second opinion you can contact Your Mechanic. They can send a technician to your home or office to check out your Noisy Diff and let you know what kind of problem it has.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Second opinion] Yes

I got 150000 on my 2011 sho when should I change my timing chain?

Hi Robert. Thanks for writing in today. Although it's vital to change belts and hoses on a regular interval (as they are designed to wear), there is no recommended replacement for a timing chain. In theory, the timing chain should...

Car's interior-rear view mirror broke off from the windshield. How do I reattach it or is it even possible?

Hi there. It seems that the base may be cracked and not fitting on the support base that is attached to the windshield. You can try putting Gorilla Glue on the mirror bracket to make it fix the crack and...

Humming noise coming from front end

If the tires are worn irregularly and/or have any internal damage (such as a belt separation) that will create a lot of noise of the type you are hearing. The other possibility is defective wheel bearings (quite common). I would...

Can grease viscosity lead to engine failure?

Assuming you are referring to the engine motor oil, this is not likely something that would cause an engine to fail instantly. As you may know, the motor oil is what lubricates all of the moving parts inside your engine....

Car starts, but dies.

I think you probably have a bad alternator. If you car starts, it's not the ECU. It could be the mass air flow sensor(MAF) but that has already been eliminated. You could have a clogged fuel filter which means it's...

fluctuating rpms and speed odometer

It sounds like the transmission is slipping and causing the RPM to go high and the speedometer to jump when the transmission is slipping. Have the computer tested for communication problems and the transmission for slippage. A technician from YourMechanic...

Trouble With My reverse gear

You should put the vehicle in park and check to make sure the fluid is full first. If it is full, then you may have a bad reverse control band or servo in the transmission, and it would need to...

How do you get maximum performance from the max A/C setting?

Your vehicle has both a normal A/C setting and a max A/C setting. While the normal setting should keep the interior of your car comfortable on hot days at highway speeds, you may want to use the max A/C setting...

Related articles

Industry News for Automotive Techs: October 15-21
This week: home-brewed autonomous car, sneak peek at future Jeeps, scheming car hackers, Ram's off-road TRX concept, new turbo test kit from Lisle.
A Buyer’s Guide to the 2012 Infiniti M
The The 2012 Infiniti M combines luxury, performance and value into a stylish sedan. With numerous standard luxury features and drive-enhancing technology, this is one car that is sure to impress any driver in a number of ways. Key Features...
A Buyer’s Guide to the 2012 Smart ForTwo EV
The The growing number of electric options available in the market has led to many carmakers throwing their hats in the ring with their own innovations, and this couldn’t be more obvious than with the 2012 Smart ForTwo EV. Add...