A/C Update
The Mobile Air Conditioning Society (MACS) 25th Anniversary Convention and Trade Show is a great event for shop owners and technicians to learn about the latest trends in air conditioning technology and to see the latest A/C service products and equipment. This year’s show was held in Las Vegas February 1-3. One question that came
Medium-Duty Truck Clutch Repair
What is a medium-duty truck? The industry defines it as a vehicle with a Gross Vehicle Weight of 14,000 to 26,000 lbs. At 14,000 lbs., most heavy-duty one-ton trucks qualify as a medium duty vehicle. In light- and medium-duty trucks, the automatic transmission is ever increasing in popularity and numbers. So why am I talking
News: Babcox Publications Acquires Fleet Equipment & T3 Magazines
cations for the automotive aftermarket to now include the truck fleet equipment management and information technology (IT) arenas. These respected magazines, and their editorial staffs, broaden our reach and offer outstanding publications for the marketplace.” Each month, Fleet Equipment targets an audience of qualified fleet equipment managers who are directly responsible for specifying and buying
Diagnostic Dilemmas: The Effects of Warm-Up Laps on a Running Engine
Most diagnostic technicians have experienced the frustrations of troubleshooting temperature-related engine performance problems. All too often, the true nature of the problem is concealed by the very fact that it occurs only at specific engine temperatures. If the engine quickly passes through the critical temperature range needed to duplicate the problem, the problem can easily
Why Go Digital? For Precision and Protection
These days, no matter what kind of automotive repair work you specialize in, virtually every system has a certain amount of electronics. Consequently, one diagnostic tool every technician needs is a digital multimeter. To figure out electrical and electronic problems, you have to “see” what’s going on inside the circuits and components. Trouble is, you
Getting the Most Out of Your Lifts
Lifts play an important role in the day-to-day operations of any automotive service facility. Some may even argue that a lift is a shop’s most valuable employee. After all, lifts never call in sick or go on vacation. However, one of the worst things a shop owner can do is fall into the trap of
Driveshaft Service
Driveshafts on most rear-wheel drive and four-wheel drive (4WD) vehicles are very durable. Most late-model driveshafts are not serviceable and do not have any lubrication points. But, this does not mean that they can’t wear, or even fail. Driveshaft problems can be spotted from the moment you put the vehicle in gear to pull it
Detouring Comebacks
se, how you handle (or prevent) a comeback becomes even more important to the success of your shop. Go ahead ‹ ask yourself, “Am I allowing comebacks at my shop to get out of hand?” First, don’t be discouraged. There will always be some comebacks. According to one shop owner, you can expect about a
Checking into Mode $06
Mode 06 is the actual system test data that OBD II looks at when it decides to set a pending code or a current fault code. If the test data is within the limits established by the vehicle manufacturer, the item gets a PASS and no codes are set. But if a value is out of range, OBD II flags it with a FAIL and keeps an eye on the component until the system monitor has run at least twice. Then, if the problem is still there, a DTC is set and the MIL light comes on.
Selling Service for Low-Maintenance Ignition Systems
ition system maintenance as long as it feels like it’s “running good.” In reality, spark plugs eventually develop high electrical resistance because the electrodes wear away. When this happens, the secondary ignition voltage will increase until the ignition coil, ignition cable, spark plug boot or spark plug develops a high-voltage leak. When a high-voltage leak