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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...

“Hot Rod Magazine: 75 Years” book review

“Hot Rod Magazine: 75 Years” book review

For some reason, my grade school library had a subscription to “Hot Rod” magazine. My suspicion has always been that it was one of the few magazine subscriptions for boys my age that was acceptable to have in the school library. Nevertheless, I spent a lot of time in...
Watch this video on the four stages of grief for mechanics

Watch this video on the four stages of grief for mechanics

You’ve likely heard of the psychological model called the five stages of grief. It’s used to describe the various emotions people might experience when dealing with a significant loss, and the the five stages of grief are commonly defined as denial, anger, bargaining,...
What does horsepower really mean? (VIDEO)

What does horsepower really mean? (VIDEO)

Horsepower is a strange measurement, isn’t it? Think about it. When was the last time you used a horse for any kind of work or travel? Like candlepower, the original horsepower attempted to express the output of a newer technology in comparison to its predecessor....
Sketching Skodas

Sketching Skodas

Instead of restoring vintage Czech cars made by Laurin & Klement (L&K), Stefan Ivanov sketches them. His desire to raise awareness of the brand in his home country of Bulgaria and abroad drove him to publish an illustrated history of L&K in 2019. Although...
Cars that make you think of something specific

Cars that make you think of something specific

Some vehicles have the power to evoke strong memories or associations. Whether it’s a classic film, a historical event, or a beloved television show, these vehicles often serve as iconic symbols. You’ll likely only have to read the headers in this piece for you...