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.

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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...

Is It Ever Safe to Reuse Torque-to-Yield (TTY) Fasteners? (VIDEO)

Description Torque-to-yield fasteners are designed to deform during installation to ensure a secure connection. If a TTY fastener looks to be in good shape after removal, can it be reused? Pete Meier explains why these single-use bolts should always be replaced for...

Do You Survey Your Customers, and How?

Recently, I had the opportunity to take my car to a body shop (it’s a long story). Once the work was done and I was checking out, the office manager mentioned to me that they would be sending me a customer satisfaction survey and encouraged me to fill it out. Then she...

Interpreting Compression Tests–ASE Practice Questions (VIDEO)

Description Technician A has just completed a running compression test using a mechanical compression gauge. Technician B says that the test is used to check the volumetric efficiency of the engine. Technician A says that the higher-than-expected readings indicate a...

Do I Need a Tune-up?

If you’re like me, you might cringe a little. More often than not, they’re hoping this magical procedure will fix some mysterious issue with their car. But let’s break it down: what is a tune-up, anyway? Most dictionaries describe a tune-up as “a general adjustment to...

Our Contributors

Jonathan Roth

Jonathan has been a technical writer for Dorman for over a decade. If you’ve read any Dorman instructions instead of chucking ’em, he’s the guy who wrote them. He has also worked on the Dorman Helps benefit car show since 2013. Prior to writing for Shop Press, he was a freelance entertainment writer for the Allentown Morning Call, The Aquarian Weekly and two.one.five magazine. His dream car is a Tri-Five Chevy.

Mike Principato

Mike has been writing for and about the auto and heavy truck industries long enough to remember when Pontiac actually believed that the Aztek would save their brand and no self-respecting truck stop had a salad bar. He’s lost count of the number of vehicles he’s owned, fixed, reviewed, or conned an unsuspecting manufacturer into letting him drive. His work has appeared internationally everywhere but on your coffee table, and invariably reflects his irrepressibly nerdy fascination with highly engineered machinery of every kind. In Shop Press, his sworn mission is to help readers discover that same magic behind the seemingly mundane.

Mike Apice

Mike has been a long time photojournialist based out of Philadelphia. One day he walked into Dorman Products. They gave him a camera and said, “Shoot this part,” and almost 22 years later he’s still shooting. He’s seen a lot of changes in and around the automotive world, but is still a devoted manual transmission driver. He appreciates the stories each car and each driver has, and enjoys showing those stories in his photography.

Nick D’Alessio

Before coming to Dorman, Nick ran his own shop specializing in high-performance Japanese vehicles which he still owns and operates today. He holds a degree in electrical engineering, and holds certification as a Master Technician through the ASE. He began his career as a field service engineer for Bombardier Transportation working on projects like the SEPTA M4 train and AMTRAK Acela High speed train. Well-versed in fabrication and welding, you can find him performing complex try-ons, building on-vehicle test fixtures or test harnesses, or hosting Dorman product and original content videos.