Underhood Service

06/24/2026

Aluminum is pound-for-pound stronger than steel or cast iron. But, aluminum reacts differently from iron or steel under extreme impacts. In this video, we go over how to service aluminum suspension control arms:

According to automotive engineers, for every 10 percent reduction i...

06/22/2026

On some vehicles like Ford, Volkswagen, and even Subaru, if the battery is not up to s***f, it will not start an over-the-air update because if the battery voltage drops too low, the update may not take.

Be sure to watch our full video: https://bit.ly/4vU56QF

06/18/2026

If you're topping off or refilling a cooling system, it is critical that you look at the marks on the side of the reservoir to make sure you're not overfilling it. If you overfill it and that level is too high inside the reservoir, you're not leaving headspace.

Be sure to watch the full video: https://bit.ly/3SecYhv

06/15/2026

Gasoline particulate filters, as we covered in a recent story, are growing in prominence in North America as cars in European markets adapt to changing emissions standards there, and bring the same cars here. As a result, many technicians may not know that certain new models contain GPFs.

We had some reader questions and comments come in about this topic, so we went to an expert to get some FAQs answered.

Gasoline particulate filters are growing in prominence in North America as cars in Europe adapt to changing emissions standards there.

06/10/2026

Here's a sneak peek 👀 at the UHS section of June's issue of ShopOwner - on its way to mailboxes now!

06/05/2026

No matter what gasket you're working with in a water pump installation, torque matters. In this clip, we dig into why.

Watch the full video: https://www.youtube.com/watch?v=QJjeKb8g2a8

06/02/2026

P0015 is often one of those codes that comes back no matter how many times you clear it. The worst part is that often there are no symptoms or customer complaint, just a check engine light. Here's what you should know about clearing this code, and others like it:

Engine position codes like P0015 seem like they come back no matter how many times you clear them from the car.

06/01/2026

What’s that noise?

One quick way to check for a worn wheel bearing is to raise the vehicle and test for play. Grab the tire at the 12 and 6 o’clock positions and rock it back and forth. If you feel movement on a sealed hub or bearing assembly, that is a sign something is not right.

Simple checks like this can help you diagnose wheel end issues faster and keep vehicles safe on the road.

Learn more about BCA Bearings: https://bcabearings.com/

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05/29/2026

Thermal runaway events are rare but serious. Early recognition and proper procedures help reduce risk and support safe service operations. Learn more in the latest video from our EV IQ series:

Thermal runaway EV is a condition technicians need to understand as...

05/26/2026

There’s a learning curve to understand battery management systems, how they work, and what the diagnosis and repair process will be like. Learn more in our story:

There’s a learning curve to understand battery management systems, how they work, and what the diagnosis and repair process will be like.