Shop Press - Auto Repair News & Ideas

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Hot Off the Press

Learn Why You Should Never Skip Battery Isolation (VIDEO)

Description Tempted to skip battery isolation during a repair? Dorman Training Center instructor Pete Meier explains how this essential step can protect you from serious injury while working on a vehicle. Related Videos

SLABs: Slow, Loud, and Bangin’

I love investigating specific subcultures, especially car subcultures. Doing so provides a unique lens through which to understand the complex dynamics of the broader society, including power, identity, defiance, and cultural change. Consider slab cars, for example....

Decreasing Circuit Resistance – ASE Practice Question (VIDEO)

Description When the resistance of a circuit is decreased and voltage remains constant, what happens to current? What is the correct answer?A) It goes downB) It stays the sameC) It goes upD) It varies depending on the meter usedRelated Videos

Colin Chapman: The Philosopher of Motion (Part 2)

In Part 1 of this piece, we looked at Colin Chapman’s career up to the mid-60s. In this part, we’ll pick it up in 1965.Lotus wins the Indianapolis 500 In 1965, Chapman and Clark teamed up and made more racing history, this time across the pond at the Brickyard. Their...

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...

Does Fuel Octane Rating Really Matter?

Spoiler alert: yes!

HOT OFF THE PRESS

How Does Regenerative Braking Affect Brake Wear?

How Does Regenerative Braking Affect Brake Wear?

Regenerative systems slow the vehicle electrically, but the reduced use of friction brakes creates new maintenance challenges.

Air Conditioning Service Fundamentals – ASE Practice Question (VIDEO)

Air Conditioning Service Fundamentals – ASE Practice Question (VIDEO)

A/C systems are evolving with new designs and refrigerants, making accurate diagnosis and repair more important than ever.

Don’t Overlook the Elementary

Don’t Overlook the Elementary

Draw a hard line when it comes to basic diagnostics.

ABOUT SHOP PRESS

Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle. With interesting stories from around the world, features on creative people and solutions, and all kinds of other stuff that’ll make you use your mind and your hands.

SHOP STUFF

Auto care news and advice you can use.

Cat DTC Diagnosis (P0420) – ASE Practice Question (VIDEO)

Cat DTC Diagnosis (P0420) – ASE Practice Question (VIDEO)

Technician A says other codes should be diagnosed before replacing the converter for a P0420 code. Technician B says an upstream exhaust leak can trigger the code. Who is correct?

Use the Little Radiator—and Have Customers Do the Same

Use the Little Radiator—and Have Customers Do the Same

Cars have a backup cooling system—use it when the situation demands!

PSA: The Right (and Wrong) Ways to Handle Iridium Spark Plugs

PSA: The Right (and Wrong) Ways to Handle Iridium Spark Plugs

New techs and DIYers should know that not all spark plugs are created, or treated, equally.

Tool Review: Permatex 25240 Thread Locker

Tool Review: Permatex 25240 Thread Locker

Can there be one threadlocker color to rule them all?

Try Doing It the Wrong Way

Try Doing It the Wrong Way

When it comes to threaded items, wrong is right. Or is it left?

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SHOP STUFF

Auto care news and advice you can use.

Politics Ain’t Politic

Politics Ain’t Politic

If you have to have them in the shop, endeavor to make politics polite.

It’s All About the Process

It’s All About the Process

To reach a successful diagnostic conclusion, you have to follow the right diagnostic path.

Rookie Tip: LOF? Leave the Dipstick Sticking Out and the Oil Cap on the Hood Latch

Rookie Tip: LOF? Leave the Dipstick Sticking Out and the Oil Cap on the Hood Latch

A bent dipstick and a broken oil cap are lucky indeed!

Dealing with “System Lean” DTCs

Dealing with “System Lean” DTCs

“System lean” diagnostic trouble codes are among the top 10 codes faced by techs.

Back Away from the Wrenches

Back Away from the Wrenches

“Drive it ‘til the wheels fall off” isn’t the safest decision. So when does it end?

VIDEOS

PSA: The Right (and Wrong) Ways to Handle Iridium Spark Plugs

PSA: The Right (and Wrong) Ways to Handle Iridium Spark Plugs

New techs and DIYers should know that not all spark plugs are created, or treated, equally.

Tool Review: Permatex 25240 Thread Locker

Tool Review: Permatex 25240 Thread Locker

Can there be one threadlocker color to rule them all?

Try Doing It the Wrong Way

Try Doing It the Wrong Way

When it comes to threaded items, wrong is right. Or is it left?