Q: Differential whining

asked by on

The differential in my car is whining and my transmission is slipping.

The gears in a differential are helical gears. They normally don’t make noise unless they are worn irregularly. Low fluid levels are usually the cause of the irregular wear. This will cause the spacing between the gears or backlash to be too wide making them whine. Also gears that are not meshing properly can make a whining sound. In vehicles with high mileage this is normally due to worn bearings in the differential unit itself. Transmission slipping can be cause by several things. On an automatic transmission worn internal clutches or seals that are leaking internally can cause it to slip. On a manual transmission, a worn clutch will cause a slip condition. A qualified mechanic with the proper tools can determine what is damaged in both the differential and the transmission. Usually partial disassembly of the units is required for a correct and accurate diagnosis of your transmission’s whining noise.

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. Differential whining

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: Rear end noise, weak acceleration

Hello. A better description of what it sounds like would help me to determine what you need. If you are getting a grinding, growling, or popping noise, then it is more than likely a failing rear differential. These commonly fail...

Q: 97 Ford F-150 4x4 shifting problem when wet

Hello, you have an electrical issue. The powertrain computer needs inputs to control the transmission shift points. The OSS(output speed sensor ) which reads in MPH on your speedometer. If a connector or wiring is directly exposed to water it...

Q: Car struggling into gear

Hi there. If your car is an automatic with high mileage, it may be due to internal transmission wear. If the fluid was not changed on a regular basis, this will cause a premature failure. The fluid in Honda vehicles...

Related articles

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.
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.