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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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How Often Should You Really Flush Coolant? (VIDEO)

Description How do you know when it’s time to flush coolant? Technicians may have different views on the subject, but Dorman Training Center instructor Pete Meier explains how using a test strip at every service is a surefire way to get an accurate picture of the...

Colin Chapman: The Philosopher of Motion (Part 1)

Car designers have a lot of brain synapses firing. Some designers are driven by the pursuit of beauty, while others are motivated by the pursuit of speed. Giorgetto Giugiaro, Marcello Gandini, and Battista Pininfarina, though responsible for cars that raced, were...

Maximum Voltage Reading – ASE Practice Question (VIDEO)

Description Technician A is using the min/max function of a digital voltmeter to test the battery and charging system on a customer’s vehicle. He notes a max reading of 17.2 volts has been recorded. Technician B says that the alternator has failed and is overcharging....

The Story of Dagmar Bumpers

If you’ve read my work here on Shop Press, you know I’m a sucker for chrome and mid-century automotive design. This week, I'd like to take a look at one of my favorite examples of that era: "Dagmar bumpers," the colorfully common slang used to describe the...

Should You Charge More When Dealing with Tire Sealant? (VIDEO)

Description Aerosolized tire sealant is widely available, and in some vehicles, it is used in place of a full-size spare. While this “tire repair in a can” might be the best solution in a jam, it creates a messy, stinky situation for a tech changing the tire for a...

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...

Misfire Cause–ASE Practice Questions (VIDEO)

Misfire Cause–ASE Practice Questions (VIDEO)

by | Jul 15, 2025

Misfire Cause–ASE Practice Questions (VIDEO) Description Technician A is diagnosing a misfire. He states that a misfire is caused by a fault in the ignition system and that new plugs and coils will repair the problem. Technician B says that a misfire is detected when...
Airbag direction – ASE practice questions (VIDEO)

Airbag direction – ASE practice questions (VIDEO)

by | Oct 8, 2024

Airbag direction – ASE practice questions (VIDEO) Description When placing an airbag on a workbench, which is the safest direction for it to face? A) Up B) Down C) To a wall D) Away from a wall More ASE Practice Questions Airbag direction – ASE practice...
Bump steer – ASE practice questions (VIDEO)

Bump steer – ASE practice questions (VIDEO)

by | Sep 24, 2024

Bump steer – ASE practice questions (VIDEO) Description All of the following could cause bump steer EXCEPT: A) Incorrectly mounted steering rack B) Worn idler arm C) Worn center link D) Incorrect camber More ASE Practice Questions Bump steer – ASE practice...
Brake drum – ASE practice questions (VIDEO)

Brake drum – ASE practice questions (VIDEO)

by | Sep 10, 2024

Brake drum – ASE practice questions (VIDEO) Description When checking a brake drum during service, all the following should be checked EXCEPT: A) Diameter B) Out-of-roundness C) Minimum thickness D) Taper wear More ASE Practice Questions Why don’t you keep...
Noisy disc brakes – ASE practice questions (VIDEO)

Noisy disc brakes – ASE practice questions (VIDEO)

by | Aug 27, 2024

Noisy disc brakes – ASE practice questions (VIDEO) How to test for blown fuses in a car or truck | Fast and easy method Description All of the following could cause noisy disc brake operation EXCEPT: A) Glazed pads B) Grease contamination on the pads C) Broken...