Tech Tip: Cartridge Wheel Bearing Replacement
While wheel bearing noise is one of the toughest problems for the customer to describe, it’s not unusual for it to come on so gradually that the customer may not even notice it until you mention it after an unrelated road test. Many times, the customer complaint will send you down the wrong path if you let it. We’ve heard complaints from exhaust leaks, to tire balance, to “it just doesn’t sound right,” that have ended up being bad wheel bearings.
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.
Rotor Runout Check List
The vehicle owner may say that under light braking the vehicle pulses to a stop, or under heavy braking the vehicle shudders. Technical service bulletins (TSBs) often describe these symptoms as a “judder.” There are only two causes for judder — lateral runout and disc thickness variation on the rotor’s friction surface. What could have
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
Diagnosing Wheel Speed Sensors: WSS, ABS 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.
Servicing Wheel Ends
The trucking industry has a confusing term it uses called “wheel ends.” The term covers (brakes, hub caps, tires, seals, lubricant, bearings and spindle nuts. A 16 wheeler truck can mean more than 10 wheel ends units that can go bad. While the scale of these vehicles is rather large, the basics are the same
Kia: 4WD Front Hub and Brake System Service
Being import specialist techs, we may not be real familiar with 4WD systems and the associated parts, but that’s no reason to turn away this profitable work. For this article, we’ll look at the 2000 Sportage. The most common complaint you’ll encounter is no 4WD operation, which can usually be traced to problems with the
Cartridge Wheel Bearing Service
Wheel bearing service on import front-wheel drive cars with cartridge-style wheel bearings can be a challenge if you don’t have the proper tools. The wheel bearings are pressed into the knuckle and are impossible to remove unless you have a hydraulic press or a puller designed to push the wheel bearings out of the hub.
Wheel Speed Sensors Replacement: WSS, Chevy, GM
By Larry Carley, Technical Editor When engineers came up with the idea of putting the wheel speed sensor (WSS) and tone ring inside a sealed wheel bearing hub assembly, it seemed like a great idea. The sealed environment would help protect the sensor and make it less vulnerable to damage or contamination from the outside
Wheel Bearing Service Tips
It may seem like a long time ago when removing the wheel bearings was a normal part of every brake job. The wheel, hub and drum would be removed. The bearings and seal were removed and the old grease was cleaned from the bearings with solvent and a brush. You would next take a wad
2006 Ford Explorer Pointers
Photo 2). Another change for the 4.6L in 2006 is that it no longer uses a knock sensor. Both, the 4.0L and the 4.6L use a PCM-controlled heated PCV valve. The PCV valve on the 4.0L SOHC engine is located in the back of the left valve cover, mounted horizontally, and is well hidden from
Selling Services…Fitment Blues: Solving Aftermarket Wheel Problems
Aftermarket wheel installation requires much more than just placing the wheel on the hub and tightening the lug nuts. It involves a great deal of knowledge and expertise that, admittedly, very few people have. Here is just one scenario that may help you avoid or diagnose a problem. Case Study A customer complains that his