Q: Pinion bearing making noise

asked by on February 26, 2016

The rear end is making a noise around the differential. I've had a few people tell me it is my pinion bearing.

Car is making a noise Inspection $79.99 - $89.99 Get a Quote

The pinion bearing is a common issue with Ford rear ends. Most of the time, this failure is due to a differential leak that was not addressed and the bearing run dry. I recommend having a trained technician, such as one from YourMechanic, diagnose the noise and make necessary repairs.

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

What others are asking

Can a fuel cap cause my Chevy Tahoe to reduce engine power

Hi There, The check engine light indicates that there is likely something wrong with the engine or transmission in your vehicle and will usually come on in conjunction with the vehicle going into the reduced power mode. This happens when...

What is the cost of changing engine in 2006 Cadillac Dts 4.6L?

Sent question to CS for billing question about swapping an engine from an engine with a high mileage to an engine with a low mileage.

Whistling sound in passenger side

Hello, thank you for writing in. If the issues can be resolved by messing with the seals around the doors and windows, there is a good chance they are the problem. With that being said, you may need to have...

was running in idle. went to reverse and it died. i turned it back on and it seemed to shake.

Hello. If the vehicle is turning off and idling rough then there is a problem with the powertrain. It can be an issue with the throttle body or possibly an issue with one of the engine sensors. I usually check...

Engine noise, RPM fluctuation, ABS, 4x4 warning on

Hello. It sounds like you have a problem with the DME (digital motor electronics) and the ECU (engine control unit). It would not be a mistake to have these two things replaced. It is an expensive repair but I’m confident...

Grinding sound in reverse or neutral from park

Return the vehicle to the service facility; something could have been left loose, or maybe a faulty starter assembly was installed. I have heard similar complaints with different outcomes. When the vehicle is cold, check the power steering fluid...

serpentine belt keeps breaking

The belt is either too tight or too loose, pulleys (including that on the harmonic balancer), the tensioner, and accessories are out of plane, and/or the belt driven accessories are binding, that is they are not turning freely because the...

battery voltage falls when engine fan kicks in

The alternator may not be charging; when you put the fan on, it could be drawing too much power so the engine needs to stay running and will stall and kill the battery if battery gets too low. Check the...

When I put the automatic gear in reverse it moves forward. It is Toyota Sienna LE 2004.

Hi there. The transmission reverse input clutch is slipping. Check the fluid to the transmission and smell it. If the oil smells like its burnt, then the transmission would need to be rebuilt or replaced. I recommend dropping the oil...

Related articles

Symptoms of a Bad or Failing Pinion Seal
Common signs include a leaking pinion seal, low fluid in the differential, and a whining noise while the vehicle is in motion.
Symptoms of a Bad or Failing Sliding Motor Door Assembly
Common signs include sliding doors not opening, noise coming from the door, and metal-to-metal grinding when opening and closing the door.
How Often Do I Need to Replace My Car's Differential Fluid?
Many folks do not even know what the differential does. It is not one of those common car parts like the transmission or...