Q: Rear of car makes whining noise.

asked by on

During normal running (>30mph), the rear of the car makes a loud whining noise that increases with speed. It appears to come from the axle but I haven't been able to detect where exactly it is coming from.

My car has 128000 miles.
My car has an automatic transmission.

Howling, whining or whirring noises coming from the rear-end of the vehicle may indicate the need to have the rear differential inspected. Howling under acceleration at various speeds may indicate that the gears are worn out or are out of alignment or depth with each other. If rear differential noise occurs while accelerating the car only at a certain speed, it is likely because the gears have become worn due to overloading and lubrication failure. Rumbling and whirring noises at speeds over 20 mph may be a result of worn carrier bearings.

Generally, worn out pinion bearings can create whirring noises at various speeds during deceleration and/or acceleration. If the pinion bearings are the problem, they create more of a whirring noise than a rumble because it turns several times faster than the carrier assembly. Regular clunking every few feet can also be an indicator of a broken pinion gear and/or chipped and damaged ring gear. If any of these symptoms sound familiar to you, I would suggest having an expert from YourMechanic come to your location to inspect your vehicle’s condition.

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. Rear of car makes whining noise.

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: Engine Stutter On Acceleration

It's likely that If you were to scan the engine controller, (ECU) you would probably find several misfire codes. The misfire codes can indicate specifically which cylinder if malfunctioning. Your model car has a history of coil and ignition module...

Q: Thudding and thumping during acceleration from a stop and steering vibration at highway speed on a 2000 Nissan Pathfinder

If it's happening when you stop or accelerate, it is often a broken motor mount or transmission mount. I've got a video "how to change bad motor mounts on your car" that shows you how to check it. You put...

Q: What is the difference between a pinion seal and a pinion flange?

Hello there, thanks for your question. The pinion flange is a part of the rear differential housing that the driveshaft bolts to. The other end is attached to the pinion gear inside of the differential. The pinion seal is what...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...