April 2021 Archives - UnderhoodService
How Speed, Load and Slip Affect Voltages

Modern, computer-controlled charging systems found on today’s vehicles need proper test procedures – no guesswork allowed.

Five Spark Plug Service And Replacement Tips

Most articles will tell you to use a torque wrench, but they never explain why.

How Supply Chain Challenges Built Stronger Relationships

COVID has been challenging for everyone, but also presents opportunities to improve business partnerships.

Check the Label Before Replacing A/C Refrigerant

Never attempt to service a car’s air conditioning system without first checking the SAE J639 sticker.

How Extended Interval Oil Filters Have Been Improved

Over time, the oil filter can collect enough contaminants to become restricted. Here’s why new filters are better.

Learning Curve: Need For Training Doesn’t Take Vacation

Where can you turn for the latest, most comprehensive training resources? The answer may be closer than you think.

The Importance of Clean, Quality Oil in Timing Chain Systems

Using the wrong oil is a common problem that causes a vehicle’s timing chain to wear even quicker.

Welcome To 2035 – What It Might Look Like

The future is what we make it. We need to start addressing technology now so 2035 becomes a bright future.

Check Out Our April Digital Edition Magazine

Included are articles on oil filter technology, timing chains, spark plug service tips and more!