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Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle.

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An Ode to “Car Talk”

Back in the early aughts, I lived in the Washington, D.C. area for about nine years. Since my parents live in Pennsylvania, this necessitated many three-and-a-half-hour drives (as little as three, if I was lucky) back home for holidays or just a regular visit. At the...

Testing Battery State of Charge – ASE Practice Question (VIDEO)

Description Technician A and Technician B are discussing battery testing. Technician A says that an open circuit voltage of less than 10.5 volts indicates a bad battery. Technician B says that a reading of 12.5 volts indicates an 80% state of charge. Who is correct?A)...

PSA: Be Safe With Carburetor Cleaner, Too

Recently, I wrote about how brake cleaner can be hazardous if not used correctly, and how you should take safety precautions when using it. One of our readers had an insightful comment on the piece.Now, I think it’s debatable that carburetor cleaner is more hazardous...

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...

Average U.S. vehicle age reaches new record high, again

Average U.S. vehicle age reaches new record high, again

Does it feel like the cars and trucks in your repair shop keep getting older and older? Well, that’s because they are. The average U.S. vehicle age is now up to 12.5 years, according to a recent analysis by S&P Global Mobility (formerly IHS Markit). That’s a new...
Right to Repair gains momentum in Maine

Right to Repair gains momentum in Maine

The state motto of Maine, “Dirigo,” Latin for “I lead,” is being embraced by the members of the Maine Right to Repair Coalition who find themselves at the vanguard of a movement to ratify legislation that protects independent repair shops. Last February, a referendum...
Which road maintenance fleet has the best snowplow names?

Which road maintenance fleet has the best snowplow names?

Asking the public for creative input can sometimes be an effective way to crowdsource ideas and foster community engagement. Or, it can be an exercise in large-scale trolling, as we saw with the infamous tale of Boaty McBoatface. Nevertheless, over the past few years,...