WHEEL BEARING Q&A: What, When & Why
How much load can a wheel bearing carry? On a typical passenger vehicle weighing around 3,400 pounds, each pair of front-wheel bearings, as well as the rear-wheel or axle bearings, support around 850 pounds, depending on the weight balance and driveline configuration. If it’s a 6,000-pound SUV, each bearing might carry about 1,500 pounds. This
Tech Feature: Servicing Worn Wheel Bearings
When a wheel bearing goes out on a vehicle, it may or may not give much warning. Typical clues include noise from the vicinity of the wheel, possibly some steering wander or looseness in the steering, and/or some abnormal tread wear on the front tires. Also, an ABS light could illuminate.
Tech Tip: Diagnosing a Noisy Wheel Bearing
The classic symptom of a bad wheel bearing is typically a cyclic chirping, squealing or growling noise that changes in proportion to vehicle speed. The sound may disappear at some speeds or only occur at certain speeds. The noise may get worse when turning, or it may disappear momentarily. So it’s difficult to make a diagnosis based on noise alone.
Tech Feature: Nissan Brake and Suspension Repairs; Solving Noise Complaints
At first, you may not think brake and suspension systems are closely related. But when it comes to noise and vibration complaints, you don’t want to be looking at one without considering the other.
Electronic Brake Distribution: Emerging Technology Offers Service Opportunities
Say goodbye to mechanical brake proportioning valves, and say hello to Electronic Brake Distribution (EBD). This new technology is yet another electronic enhancement that’s being added to many late-model vehicles. With conventional hydraulic brakes, a mechanical proportioning valve is used to reduce pressure to the rear wheels when the brakes are applied. Inside the proportioning
Tech Tip: Rear-Wheel-Drive 4×4 Operation
Let’s discuss the 4×4 operation on Ford truck platform vehicles. We’ll cover the operation of the parts on the various rear-wheel-drive 4×4 systems. When it comes to Electronic Shift-On-the-Fly (ESOF) and Manual Shift-On-the-Fly (MSOF), much is the same except with MSOF, the driver has to manually push a gear shifter in the floor that is connected by rods to the shift fork inside the transfer case. With shift-on-the-fly four-wheel drive, the vehicle does not need to ….
Tech Tip: Drivetrain Noises and Wheel Bearing Replacement
One of the toughest challenges we face as import specialist techs is noise complaints. These aren’t necessarily difficult from the technical or nuts and bolts perspective as much as from the diagnostic process.
Ford-Wheeling!, Rear-wheel-drive 4×4 operation
Let’s discuss the 4×4 operation on Ford truck platform vehicles. We’ll cover the operation of the parts on the various rear-wheel-drive 4×4 systems. When it comes to Electronic Shift On the Fly (ESOF) and Manual Shift On the Fly (MSOF), much is the same except with MSOF, the driver has to manually push a gear
Hyundai: Drivetrain Noises & Wheel Bearing Replacement
One of the toughest challenges we face as import specialist techs is noise complaints. These aren’t necessarily difficult from the technical or nuts and bolts perspective as much as from the diagnostic process. The first challenge is to pin down the noise that has the customer concerned. We’ve all listened to our customers struggle with
Tech Tip: Diagnosing Wheel Speed Sensors
Wheel speed sensors (WSS) provide essential wheel speed information not only for anti-lock brake systems (ABS), but also for traction control and stability control systems. Some vehicles even compare the wheel speed sensor readings against the vehicle speed sensor (VSS) to make sure all of these sensors are accurate and working correctly. In some situations, it is also possible that the ….