Underhood

  • Turbochargers are relatively simple machines and are very reliable overall.  But like everything else, things can and do go wrong, and automotive service professionals are called on to make them right again.
  • Why is it that our heavy-duty cousins can get so much more life out of their coolant fills than we can?
    Pete Meier
  • Viewing the secondary ignition pattern is a great example of figuring out what's different between two photos.
    Pete Meier
  • It seems like we’ve been here before. Natural gas is coming back into focus as a transportation fuel in North America, despite a false start from 20 years ago.
  • We can help them get more for their buck while, at the same time, helping them protect that investment by revisiting the way we recommend fluid services.
    Pete Meier
  • The cool thing about air suspension is that it is self-leveling. Air suspension more or less works the same on just about every vehicle, but the components are different from car line to car line. 
  • If we ever were to classify two sensor inputs to be the MVPs of an engine management system, it would probably have to be the crankshaft (CKP) and camshaft (CMP) position sensors.
    dave hobbs
  • One young technician learned the hard way when rather than test anything to verify his diagnosis, he simply started throwing parts at the problem.
  • The Daytona 500 is arguably the most famous race on Earth. It marks the first entry into the NASCAR history books, when the first race sanctioned by the newly formed National Association for Stock Car Racing was held on Feb. 15, 1948.
    Pete Meier
  • I’ve always found the term “misfire” interesting. It’s a term that often leads inexperienced techs down the wrong diagnostic road.
    Pete Meier
  • Schaeffler Technologies -- a global automotive manufacturer of high-precision products and systems for engines, transmissions and chassis applications -- is supplying components or technologies to all 10 of Ward's 10 Best Engines for 2012.
    Motor Age - Service Repair
  • You don't want to see the same A/C job coming back day after day with repeat compressor failures. In most cases, a compressor job goes well and the customer is happy for good. What about those times where "in most cases" doesn't seem to apply?
  • This 2004 Hyundai Santa Fe was towed in with a complaint of an intermittent no start. With 78,000 miles on the clock, it would also provide an opportunity to not only practice my diagnostic skills, but my customer service skills as well. After all, w
  • The term "tune-up" is becoming an endangered species among automotive technicians. As emission standards tighten, new vehicles require progressively less drivability-related maintenance. With today's cars, a technician might have to replace the spark
  • April marks the beginning of a new A/C season for many. Now is a good time to take a look at how to properly service these systems, as well as other parts of A/C service you might not expect to see.
  • Delphi recently issued its Worldwide Emissions Standards booklets to provide what it reports are easy-to-read, conveniently organized summaries of emissions regulations from around the world.
    Motor Age Magazine
  • A head gasket's job is simple. It is designed to seal combustion gases within the cylinder/combustion chamber and prevent coolant and/or oil from escaping the engine at the head-to-block joint. Today's head gaskets have to provide a perfect, lock-tig
  • If only diagnosing a noise from the engine area was as simple as quickly listening to the vehicle and then ordering a new part. Unfortunately, there?s often more to it than that.
  • It?s an exciting time to be a tech. Driven by the need to reduce emissions and improve our use of the planet?s natural resources, automotive technology is progressing at an exponential rate. And it?s not just in improving conventional powertrains. It
  • Unless your customer has a rotary engine under the hood, the power-producing mill that delivers power to the transmission or transaxle is outfitted with pistons and valves, and a spinning shaft with carefully indexed egg-shaped lobes operates those v