October 2023 Archives - UnderhoodService
Technology Update: EV Acronyms And Terminology

Alphabet soup? Don’t worry – these strange combinations of letters will be beneficial to your career.

Putting Yourself First For Safety

Shop safety policies and procedures are only as good as those following them. Make sure you’re watching out for you!

Today’s Fuel Pressure Diagnostics

Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals

Overcharged A/C Systems

Your customers got hot this summer and recharged their A/C system with a DIY refill. Now what? Here’s what to look for.

It Ain’t Bragging If You Can Back It Up

For the great work they do, shop owners like Harrison Keyes talk less about “me” and more about “us.”

Battery Management Means Knowing How It Ages

The battery may be fully charged, but you also need to measure how low the voltages go while the engine is cranking.

Diesel Air Filter Replacement

Here are some diesel air filter replacement tips in order to keep these vehicles running as intended.

The October Digital Edition Is Available Today

Each issue includes technical content from Underhood Service and other ShopOwner channels.