How many times have we had a vehicle in for what the customer thought was a charging system problem? We hook a voltmeter to the electrical system and find low charging voltage and possibly excessive voltage ripple. We replace the generator, only to f
Fluids transmit movement by their incompressibility, but they also can facilitate heat transfer by convection. They absorb it from a hot component and, when moved by a compressor or pump, carry it to an exchanger, as in the case of coolant or refrige
In these troubled economic times, we tend to hear a lot of people say that they don't have a lot of money for repairs, yet they want their cars fixed. Translation: Can you do this job well and do it cheaply at the same time?
The 2005 Chevy Cobalt that came to my shop on a car dolly had been sitting fallow for a couple years. It showed just more than 48,000 miles on the odometer when the owner left it with us, and we pushed it into the shop.
At times the diagnostic business can be a lot of fun and quite rewarding. Not too long ago I got a phone call about a 2006 Ford Taurus with some electrical problems. The complaints were the ABS light was glowing, the driver's seat would not move, the
Now I'll grant the fact that some shop manuals, even the factory ones, aren't laid out well, and finding the simplest information can be an extremely annoying egg hunt. Technical service bulletins (TSBs) and recall archives go beyond shop manuals and
The Secret Service was established as a law enforcement agency in 1865, and while most people associate that agency with presidential protection, its original mandate was to investigate the counterfeiting of U.S. currency. Further, agents aren't trai
I recently encountered an interesting electrical problem on a 2001 Dodge Grand Caravan with 3.3L engine and equipped with a Teves Mark 20 ABS system. A local repair shop had tried to determine why the dash's amber Antilock Brake System (ABS) and red
Last July, I received a call from an upset owner of a 2003 Chevrolet Corvette convertible. He explained that he had just purchased the 50th Anniversary Edition 'Vette with only 7,500 miles on it and was not happy with the ride or handling. In his wor
It was a hot, end of summer September day and we'll call the customer "Everett Sinsyou." I can't tell you how many times I've battled problems on that guy's car. We've all had the same customer in our shop. You know him – just say his name slow
For those of us who can troubleshoot, it's very satisfying to be able to figure out what to do when everybody else is at a loss. In a word, those of us who diagnose, pull steel and chase sparks are accustomed to solving problems for those people who
Faulty parts and tools have disappointed everyone who has worked in the business of fixing vehicles. When we place our trust in bad tools and parts, the people who manufactured those tools and parts sometimes seem fairly callous to the fact that our
I spent one day recently at a clean little garage in the country. The owner, Donnie, and I have known each other for more than 20 years, and we use each other for sounding boards on tough diagnostics. Today was one of those days.
Technicians, particularly those who work at dealerships, tend to develop a skewed view of certain vehicles because almost all of the ones they see are the ones with problems. Also, wise vehicle owners will be willing to spend money on scheduled maint
Some customers will have vehicles we wouldn't give $100 for, but they think they can't live without them, and trading or selling the old bomb is the last thing on their minds. These folks will sometimes spend obscene amounts of money on repairs.
This month's article revolves around an Acura we tangled with at my shop. While there are other vehicles out there with vaguely similar powertrain configurations (Eldorados and Quantums), this one turned out to be a very interesting study and a nasty
Certified Technician is the newsletter for automotive repair professionals. Get the latest news, tech tips and diagnostic techniques delivered straight to your in box. Sign up today! Published every Monday and Thursday.