Rotor Debate: Resurface or Replace?
More often than not, many rotors today are being replaced when the brakes are relined – and some motorists are complaining that new rotors really aren’t necessary. Resurfacing can usually restore the friction surface on worn rotors to like-new condition, unless a rotor is worn down too far to be safely resurfaced or has cracks,
Causes & Cures for Disc Brake Problems
There are as many causes as there are cures for disc brake problems. Brake pedal pulsation tops the list, while disc brake noise and brake pedal sensitivity follow as second and third place contenders. Most of these problems can be avoided if technicians have the right parts and follow the correct procedures. Let’s begin by
Component Connection: Water Pumps…Why They Fail and When to Replace Them
If you’ve wondered how much work a water pump must do, remember that only about 30% of the heat energy produced by combustion results in mechanical energy. That estimate, of course, is a mathematical comparison between the heat value of the gasoline going into the engine, and the heat value of the mechanical energy coming
Transmission Service: It’s a Dirty Job, But Here’s What You Need to do It
Automatic transmission work has always been considered hard, dirty work. And rightly so. Pulling a transmission, especially on a front-wheel-drive car or minivan, can be a long day’s work. It usually involves supporting the engine while the transmission and subframe are dropped from the vehicle. Consequently, you need some type of engine hoist or engine
How to Unlock the Potential of Your Management and Information Software
Software is a unique tool. Every time it is used, it becomes more valuable to your shop. With every customer profile, parts data and billing information that you input, it will become more valuable to your operation. Also, with every technical service bulletin or bit of repair information found, you become more valuable. For automotive
Waste Not, Want Not
Generating waste is not too difficult for most automotive repair shops. Getting rid of it is what often poses a problem, especially when the waste in question is something that is as environmentally damaging as used automotive fluids. When it comes to disposing of hazardous waste, shop owners need to understand their state’s regulations, establish
Friction Fundamentals
A brake, according to the dictionary, is a device for arresting the motion of a wheel or vehicle. The original brake, like the original wheel, was invented before history was accurately recorded, but we know from pictures drawn by ancient Phoenicians and Egyptians that it is one of the oldest of mechanical devices. For thousands
Mileage Maintenance
A mere 0.7 of a mile does not sound like much, it is about 3,700 feet, or less than one-third the distance around Daytona International Speedway. On average, the U.S. population of vehicles will get 20 miles per gallon (including light trucks and passenger vehicles). A 0.7 of a mile improvement represents only a 3.5
Rotor Debate: Replace, Discard or Machine?
More often than not, many rotors today are being replaced when the brakes are relined – and some motorists are complaining that new rotors aren’t really necessary. Unless a rotor is worn down too far to be safely resurfaced or has cracks, deep grooves, severe rusting, hard spots or other structural defects, resurfacing can usually
Alignment and Scan Tools
How can centering a steering wheel during an alignment cause a vehicle to turn a blind eye? In the past two years we have seen more vehicles on the market with stability management and adaptive cruise control. If a vehicle with one of these systems comes into your shop for alignment, be aware that any
BALL JOINTS & BUSHINGS: Worn Components Take Their Toll on Advanced Suspension Technologies
Too often, shop owners and technicians alike assume that suspension systems haven’t changed much in the past 20 years. In reality, nothing could be farther from the truth because today’s import vehicle may incorporate a number of technologies that can be affected by worn steering and suspension components. To illustrate, we’re beginning to see electronic
4WD Clutch Replacement
Here in the upper part of the West Coast, four-wheeling is a very large part of outdoor recreation. Vehicles of all kinds are taken to the forests and mountains every weekend. There are miles and miles of off-road trails, and organized clubs are available for every make, model and size of 4WD vehicle. Toyota trucks