Symptoms of a Bad or Failing Support Bearing

A center support bearing is a type of drivetrain bearing that is commonly found on rear wheel drive vehicles. Its purpose is to serve as support for the vehicle’s drive shaft and the metal shaft that goes along the underside of the vehicle and transfers power from the vehicle’s transmission to the rear differential where it is then transferred to the wheels. While it’s purpose is simple, when the support bearing goes bad it can cause problems and even compromise the drivability of the vehicle. Usually a faulty center support bearing will produce a few symptoms that can alert the driver that a potential problem has occurred and needs to be serviced.

Unusual noises when vehicle accelerates

Unusual noises are some of the first symptoms produced by a bad or failing center support bearing. An excessively worn or faulty center support bearing will howl or squeal when the vehicle accelerates from a stop. The howling or squealing may quiet down as the vehicle picks up speed.

Shuddering during acceleration

Shuddering during acceleration is another symptom commonly associated with a faulty support bearing. A failed bearing will not be able to properly support the drive shaft, and as a result the drive shaft will flex incorrectly, which will cause vibration and shuddering. In more severe cases of support bearing failure, the driveshaft may even shudder and flex to the point of making contact with the undersides of the vehicle, which can cause damage to both the driveshaft and the chassis.

Most center support bearings are heavy duty and built for a long service life, however, over time they will eventually wear out and need to be replaced. A worn center support bearing will not be able to properly support the vehicle and will render it undrivable once it completely fails. If you suspect that your center support bearing may be having a problem, or your vehicle is displaying any of the symptoms above, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if your vehicle needs a center support bearing replacement.


Next Step

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Eduardo

19 years of experience
549 reviews
Eduardo
19 years of experience
Mini Cooper L4-1.6L Turbo - Water Pump Replacement - Richmond, Texas
Showed up on time and completed the work as promised
Audi A4 - Brakes, Steering and Suspension Inspection - Houston, Texas
Good joob

Jose

17 years of experience
154 reviews
Jose
17 years of experience
Land Rover Range Rover Sport V8-5.0L - Oil Change - Las Vegas, Nevada
On time and Dependable
Honda Accord - Control Arm Assembly Replacement (Front Lower Left, Front Lower Right) - Las Vegas, Nevada
Thanks again ..Hopefully i won't be seeing you for the 3rd time anytime soon

Kevin

24 years of experience
532 reviews
Kevin
24 years of experience
Honda CR-V L4-2.4L - Vehicle Drivetrain Inspection - Lilburn, Georgia
I'm glad we got the 50 point inspection because the actual issue was different than what I thought.

Richard

35 years of experience
96 reviews
Richard
35 years of experience
Mercedes-Benz CLS550 V8-5.5L - Vehicle Drivetrain Inspection - New Port Richey, Florida
Came out on time took 40 min test drive found problem and ran scan to show the problem and I would recommend him highly knows his job well ! Thanks you Richard !

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