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Tool Review: FNIRSI DSO152 Oscilloscope

Disclaimer: I purchased this tool at full retail price. In fact, I actually purchased two so I could try out the version with a high-voltage lead.If you’ve met my fellow Shop Press contrib Pete, seen his videos, taken his classes, or read his articles, you’ll know...

Making custom coiled wire is easier than you think (VIDEO)

Description Coiled wire is a smart idea for adding service loops or mechanical strain relief on automotive electrical jobs or other projects. In three easy steps, you can make your own coiled wire sections for all kinds of applications.

Choosing the right brake fluid

You know topping off brake fluid is generally a no-no, but when a customer’s brake fluid needs to be flushed completely, knowing what to put in the reservoir isn’t as clear-cut as it once was. The master cylinder cap may say the vehicle uses DOT 4 brake fluid, but are...

ICYMI: Secondary hood prop positions

Today’s article might score a little lower on technical difficulty and higher on automobilia esoterica, but I make no apologies. In my salad days, I worked as a dismantler at a salvage yard. Pulling motors was commonplace, so I learned quickly about this tip I’m sure...

Automotive terms that differ in other English-speaking countries

As a public service to all of our readers, we thought it would be helpful to take a look at some of the common (and not so common) differences between everyday automotive terms used in different English-speaking countries, as this can easily come up when reading or...

LT-series vs. P-series tires

The truck and SUV have never been more prolific than they are today. These vehicles need remarkably different tires depending on a few different factors. Be honest: are you selective about what tire you offer your customers who qualify as “fringe cases?” P-series...

Smarter, not harder: relative compression testing

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,...
The TPMS tool that pays for itself

The TPMS tool that pays for itself

If you’re a regular Shop Press reader, you’ve met Chris before. (He’s hilariously identified some dash lights and also is better at identifying auto parts by feel than anyone else I know.) I’ve worked here for a while, but his tenure bests mine. The other day we were...
How do you inspect a serpentine belt for wear?

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...
How to use a refractometer

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...