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
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.
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
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
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.
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
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
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
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
Can I use an impact wrench to remove or install a wheel bearing hub unit?
When a bearing wears out, it is usually a case of inadequate lubrication, faulty installation or improper adjustment. For the repair to be successful, you must first determine why the previous bearing failed. For sealed hub units, examining the internal bearings and races is impossible. The most common failure pattern for bearings is for those