Replacing FWD Wheel Bearings
When a wheel bearing goes out on a FWD car or minivan, 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. Any
Failing Master Cylinder: Classic Symptoms
Anyone who works on brakes should be familiar with basic hydraulics and the various components that make up the hydraulic portion of the brake system. So if you’re not as familiar with this subject as you should be, keep reading and we’ll refresh your memory. We’ll start at the heart of the system, which is
Brake Hardware: Lessons Learned From a Little Piece of Wire
Every technician has struggled with those little wire clips that push the pads onto the pistons on first-generation Mazda Miatas. Those little clips that barely fit into the painted-over holes on the new pads and can shoot across the shop like a rubber band can make a big difference. One racecar builder who specializes building
Brake Dynamometer Testing: One Test is Worth a Thousand Expert Opinions
Some friction material companies market their products by saying they are third-party tested or tested on their own brake dynamometer. But, understanding what this really means is tough if you do not understand how a brake dynamometer operates. In the engine performance world, an engine dynamometer is associated with measuring performance. Brake dynamometers also measure
Cracking the Code: Understanding Friction Material Edge Codes
Just about every brake pad or shoe you install has a cryptic code printed on the side of the friction material. As a technician, being able to read this code is just as important as the Dewey Decimal system is to a librarian. The “Edge Code” can tell you information about the product you are
Hydro-Boost Power Assist Systems: Operation Diagnosis and Repair
The hydro-boost uses the hydraulic pressure from the power steering system to provide the driver assist in applying the brakes.
Rotor Metallurgy
In the past few years, the prices of rotors seem to be dropping. Call just about any parts supplier and they can quote you a vast range of prices for the same application. When you compare the rotors side-by-side, they may look the same. But, the difference between a comeback and satisfied customer might be
Rotors and Pads: Analyzing Replacement Options
Although the industry has seen anti-lock braking systems (ABS) become standard equipment on modern imports, the majority of brake service still focuses on the replacement of brake pads and rotors. Rotor replacement, of course, has changed because new rotors have become a more cost-effective method of resolving pedal pulsation and brake shimmy problems associated with
Parking Brakes: The Forgotten Fourth Pedal…Or the Seldom-Used Stick
How Much Is Really Enough?
Basic Brake Hydraulics
Anyone who works on brakes should be familiar with basic hydraulics and the various components that make up the hydraulic portion of the brake system. So if you’re not as familiar with this subject as you should be, keep reading and we’ll refresh your memory. We’ll start at the heart of the system, which is
The Forgotten Fourth Pedal…Or…The Seldom-Used Stick
On some vehicles it is the forgotten fourth pedal. The emergency or parking brake is a critical component of the brake systems that should not be ignored. Though most motorists seldom use their parking brakes, it is a required safety device and must work properly when called upon to keep a vehicle stationary. The main
Brake Tech Update: Uncovering Brake Fluid Leaks on Acura Integras
The brake fluid level on 1994 Integras may be low in the ABS reservoir, and fluid may appear to be leaking from under the label on the ABS accumulator. The likely cause is that the ABS accumulator internal O-ring is damaged, allowing brake fluid to leak out. Diagnosis: Remove the label from the ABS accumulator.