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.

From the creative minds at:

FEATURE STORY

Hot Off the Press

What is a core charge?

The article title is a question I asked when I was a young counterman, and most of you oldtimer mechanics and parts people of course know the story: the core charge is a way to be sure the smoked part makes its way back to the parts counter. A core charge is a deposit...

How do you inspect a serpentine belt for wear?

Performing a visual inspection of a car part is usually the first step in assessing its condition. In the case of the serpentine belt, any sign of physical damage to the belt means the belt should be replaced, and may indicate the need to more closely inspect the...

The importance of testing engine coolant (VIDEO)

How to test for blown fuses in a car or truck | Fast and easy methodDescription Dorman Training Center instructor Pete Meier explains why you should be testing engine coolant on vehicles in your bay. With a simple test strip, you can quickly check the coolant's health...

How to use a refractometer

I used to feel real dumb when I didn’t know what a tool was. After fixing things for a bit, I have come to learn that there are a lot of specialized tools and the only dumb thing is not learning about them. So when Dorman Trainer Pete Meier showed up recently with a...

Transfer cases: Married vs. divorced FAQ (VIDEO)

There is a paucity of divorced transfer cases fitted to vehicles traversing the roadways in 2024. In fact, some technicians—especially younger ones—aren’t even aware a setup beyond the married arrangement exists. If you’re unfamiliar with them, our own Technical...

New to the team but not new to the business (VIDEO)

Greetings, Shop Press readers! I joined the Dorman team earlier this year and you may have already noticed a few posts with my name on them. Maybe you’re even asking yourself “What makes this guy qualified to offer an opinion or try to tell me how to work on cars?”...

Square drive: make or buy before you need ‘em

As a new tech, all I did was borrow tools from mechanics who were good to me. They usually lent and trained me on etiquette just after. (If you need to borrow it more than once or twice, maybe you ought to buy your own.) It’s not that often that I find myself without...

How to service spark plugs the professional way

How to service spark plugs the professional way

The spark plug has a tough job to do, and it has to do it under extreme conditions. The terminal (top) end of the spark plug is connected to a high voltage supply source, the ignition coil. As current flows from the coil, a voltage potential builds between the center...
PSA: Make sure your Loctite isn’t fake!

PSA: Make sure your Loctite isn’t fake!

Loctite’s threadlocking compounds are used by automotive professionals everywhere to secure critical fasteners. Unfortunately, Loctite’s popularity has resulted in a wave of counterfeit products that can look remarkably like the real deal. Everything from the...
PSA: Check that cabin air filter

PSA: Check that cabin air filter

Most of us know that we should change the filter in our home heating and air conditioning system monthly, but why? What does it do? The role of the filter is twofold. First, it traps dirt, dust, pet dander, pollen and other allergens and helps keep the air you’re...
Exhaust tips: three ways to fine-tune your method

Exhaust tips: three ways to fine-tune your method

Exhaust work is straightforward and (I think) easy to understand. If you’ve got a lift and a ‘cety torch, it really should be gravy work. That said, I have made plenty of my own mistakes and repaired the mistakes of others. Hopefully this article helps a few of you...
Four not-so-obvious ways grease can come in handy

Four not-so-obvious ways grease can come in handy

I like grease. You may or you may not, but as a very cheap staple of most shops, I’ve learned to use it in a few unconventional ways, which has made me like it more. Here are a few times plain ol’ grease is what you should reach for. Vertically-oriented O-rings...