Featured Archives - UnderhoodService
The January Digital Edition Is Available To Download, Read

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

Parts and Artificial Intelligence

In the past 25 years, things have changed with the Internet.

Dayco Expands H-D Belt Kit Line

Dayco says six new SKUs cover hundreds of thousands of Class 8 fleet vehicles on the road today.

Streamlight Launches Stinger Color-Rite Light

Flashlight allows users to better see the color spectrum under low light conditions.

The Importance of Proper Spark Plug Torquing

Whenever you install new spark plugs in your vehicle’s engine, there are some crucial considerations to keep in mind. For those who have installed plugs before, proper plug gapping usually comes to mind first. But another important factor in getting the most out of a new set of spark plugs is to precisely torque them

AMN Drivetime: Dave Caracci

Dave Caracci is a guy who can wield a wrench as deftly as he can a sales pitch.

Inspection Intervals

If you fail to inspect an item on the schedule, you could miss out on maintenance opportunities.

Instant Shudder Fix (VIDEO)

It can be difficult to determine if your shutter is a fluid-related issue or a costly mechanical problem. This video is sponsored by Lubegard.

Ethanol & Fuel Systems

Here’s what you need to know about ethanol and E15 fuels.

Regular AC Maintenance Helps Prevent Compressor Failure

Not following the proper service procedures or compressor oil recommendations could be factors to early compressor failure.

Spark Plug Replacement

Here are some tips to follow when replacing a spark plug.

Tesla Diagnostics

There are three levels of Tesla diagnostics and repairs