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The Real Meanings Behind OBD-II Diagnostic Trouble Codes (VIDEO)

Description When the check engine light (CEL) pops up and your OBD-II scan tool displays a code, that’s only the start of the diagnostic process. By breaking down the structures used to create DTCs, you can learn how to “decode” beyond the simple descriptions...

What’s Torque-to-Angle All About?

Torque-to-angle, also known as angle-torque or torque-plus-angle, is a fastening method that combines an initial torque application with a subsequent angular rotation to achieve precise bolt or fastener tension. This technique ensures consistent clamping force,...

Hybrid A/C Compressor Oil-ASE Practice Question (VIDEO)

Description Technician A is working on a hybrid vehicle’s air conditioning system that utilizes a high voltage electrical compressor. Technician B says that only the oil specified by the vehicle manufacturer should be used in the compressor. Technician A says PAG oil...

Troubleshooting a “No A/C Compressor Engagement” Fault

As the weather warms, more and more of your customers will be switching over their HVAC control settings to “max A/C”. If the system doesn’t respond by blowing that refreshing cool air into their faces, they will show up at your door to find out why. When faced with...

Diesel Engines and Racing

Nearly every conceivable version of the internal combustion engine has made its way to the Indy 500. But it was a 1931 entry of a rather unusual type that made it into the record books as the first to complete the entire 500-mile race without a pit stop. That entry...

Recovering A/C Refrigerant-ASE Practice Question (VIDEO)

Description Technician A is preparing to recover the refrigerant from a customer’s vehicle. All of the below are steps he should take when performing this service EXCEPT: A) Test for the presence of sealant in the vehicle systemB) Identify the type of refrigerant the...

May Automotive Horoscopes

May Automotive Horoscopes

Aries: Your service writer will be keeping you busy this month, and you’ll need to keep your focus to avoid burnout. Pay special attention to the effects of distractions around you. Some coworkers have a way of keeping you from your work for a little longer than you...
Junkyard therapy. It’s my kind of therapy.

Junkyard therapy. It’s my kind of therapy.

For some folks it’s fishing. For others it’s golf. But when I feel like dropping off the grid for a couple hours of “me” time, I head out for a walk in the park—in the junkyard. Actually let me clarify that, because not all junkyards are the kind of junkyard where I...
The worst cars are the best classrooms

The worst cars are the best classrooms

In my line of work it helps if you like cars. It helps even more if you love ‘em. Which I do, and far more than they deserve to be loved as inanimate objects. That misplaced affection—along with the fact that I bore easily—also helps explain why I’ve had so many....
May Automotive Horoscopes

March Automotive Horoscopes

Aries: The rhythm in your current workflow gives stability and predictability. Don’t lose it! Your service writer will have plenty of work for you soon. Lean on your focus to plow through your list of tasks, and use any down time to organize your personal space. You...
TECHNICIAN CHALLENGE: The Mystery Box

TECHNICIAN CHALLENGE: The Mystery Box

TECHNICIAN CHALLENGE: The Mystery Box Description So much in the repair world relies upon feel—but it’s not so often you don’t have sight to aid you in your work. Watch as a few Dormanites attempt to identify auto parts using just the sense of touch and...