Shop Press

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Technicians vs. DIYers: How well can you gauge tire pressure? (VIDEO)

Description After seating the bead on a new tire, the valve core needs to be installed and the tire inflated to the correct pressure. Some techs can air up a tire, install the core and land right on the target final pressure… but it’s not as easy as it looks. In this...

Smarter, not harder: relative compression testing

Pete Meier, one of our Dorman Training Center instructors, is a pretty smart cat. Since the day I’ve met him, he’s made it clear that the lab scope is one of his favorite tools and that not using one is a mistake. Now I’ve put a lot of miles on my DVOM over the years,...

Can’t break that crank bolt loose? You need a crank socket (VIDEO)

How to test for blown fuses in a car or truck | Fast and easy method Description Crank fasteners are often a real pain to remove. And sometimes, even expensive impact wrenches and large breaker bars struggle to remove them. A crank socket is just the ticket for these...

So you want to restore a classic or build a kit car? Think twice.

For reasons that have more to do with personality than pragmatism, I recently considered anew the possibility of restoring a classic car, or perhaps building a kit car. It’s an itch I’ve thought about scratching since the days when Popular Mechanics regularly featured...

EGR system – ASE practice questions (VIDEO)

Description Under what conditions would the EGR system be expected to be operational?A) Cold engine, full throttle B) Hot engine, idle C) Hot engine, full throttle D) Hot engine, part throttleMore ASE Practice Questions

A few tips for ball joint removal

A few tips for ball joint removal

I was thinking about some of the stumbling blocks I had when I began turning wrenches a long time ago, and I recall ball joints sticking out as problematic. I could not for the life of me understand why other mechanics considered them “gravy work.” And that’s because...
Five things to know when working on HID headlights

Five things to know when working on HID headlights

While working on some high-intensity discharge (HID) headlights this week, I realized that soon many younger techs are likely to be inexperienced with these lighting systems—and it’s not their fault. In the transition years between halogen lighting and the LED era,...
What’s the best way to move tools about the shop?

What’s the best way to move tools about the shop?

I was recently off my feet due to some unplanned surgery. Normally I go stalking around the garage like the proverbial bull in the china shop, but not lately—my ankle was a mess. Have you ever had an injury or illness serious enough to impact the way you make a buck?...
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...