Tech Feature: Engine Diagnostics…What to do When an Engine Won’t Start
In today’s world of high-tech electronics, onboard diagnostics and scan tools, you would think engine diagnostics would be easier than ever. Yet some technicians struggle when confronted with an engine that cranks but refuses to start. Most no-starts do not generate any fault codes, so how do you proceed to find out what’s causing the
Selling Services: Handle Muscle-Car Horsepower with Complete Suspension Upgrade Packages
In the current import market, performance-modified vehicles known as sport compacts are finding themselves equally at home at local road courses and drag strips as they are on city streets. While the most popular hot-rod imports were originally designed to squeeze the last mile out of a drop of regular gasoline, these gasoline-miserly vehicles may
Diagnostic Solutions: COP Ignition Systems
For a number of reasons, the trend of modern engine management technology is leaning toward using coil-on-plug (COP) ignition systems. One reason is that COP ignitions are very compact and are very adaptable to individual cylinder tuning. With the exception of a few designs that incorporate a driver or “module” into the COP assembly itself,
Foreign Affairs: Probing Around Subaru Electrical Systems
With station wagons, small multi-purpose trucks and high-powered sports models in its product mix, Subaru has become an obvious choice for multi-use purchasers. And, by building one basic platform with all of the right stuff, Subaru has been able to concentrate on quality. That brings us to the topic of this article, Subaru electrical systems.
Oxygen Sensors: Pulse Measurement
Watching an oxygen sensor output on an oscilloscope is like watching a sporting event on television. You get to see the action, but can do nothing about it as it happens. Sometimes you miss the action and want an instant replay. It was a bad call. You saw the interference. If the referee didn’t see
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
Selling Services: Marketing Nitrogen to Your Customers
What’s wrong with air? Like a slumbering giant, the passenger and light truck tire industry is slow to evolve and slower to accept new products and ways of thinking. Take the current buzzword going around: nitrogen. That inert gas has the industry and, as I found out, consumers, in an uproar about who and what
AIM Heavy-Duty Catalogs Provide Information for New and Reman Alternators and Starters
AIM has announced the availability of its catalogs for the heavy-duty industry with information on both new and remanufactured starters and alternators. In addition to printed catalogs, AIM’s entire database of application information is available through its electronic catalog.
TPMS: What are Dealers Doing?
Service shops aren’t the only ones concerned about TPMS these days. Auto dealers, also, are handling an increasing number of TPMS-equipped vehicles in their service bays. While there’s strong competition for vehicle service, TPMS is forcing both auto and tire dealers to cope with a new side dish on their service menus. The common thread,
Diagnostic Dilemmas: Symptom Diagnosis…The Journey Begins
When I first began my automotive career way back in 1957, the symptoms of an ailing engine were very apparent. A carburetor with a worn accelerator pump, for example, would characteristically stumble on acceleration and a closed-up set of distributor contact points would cause the engine to become very sluggish. Low fuel pressure caused by
Foreign Affairs: Getting Nissan Engines Back to Peak Performance
/Articles/06_01_2007/60754gif_00000014067.gif” width=”156″ height=”146″ alt=”” border=”0″ align=”right” /> In this article, we’ll take a look at some of the common problems that affect engine performance. With on-board diagnostics (OBD), many of these problems will cause a check engine lamp (CEL) and store a code. With most of us becoming comfortable and proficient while working with OBD
Selling Services: Reading Tires to Diagnose Suspension Problems
As a rule, all tires should wear evenly across the full face of the tread as long as wheel alignment is correct, the tires are maintained at the recommended inflation pressure, and the vehicle is driven sensibly. Any kind of tire wear that deviates from the norm, therefore, usually indicates trouble. SHOULDER WEAR Take heavy