Underhood Automotive
Solving A No-Spark Condition

Communication errors or missing data from a dead module could be the cause.

Tool Up For Belts

Here are six tools to make your next belt replacement more productive.

Reflashing Power Supplies

Trying to make do with a battery charger or jumper pack can cost you more.

ABS Diagnostics

ABS is the foundation of the ESC system.

Compressor Oil for R1234yf

Working on R-1234yf systems is not that different from the R-134a variety.

Why Do Some Belts Fail?

It doesn’t matter if it is a v-belt, serpentine belt or stretch belt, all belts need friction to operate.

Spark Plug Fouling

Understanding why plugs get dirty.

Throttle-By-Wire Diagnostics

On older throttle cable systems, the carburetor or fuel injection system reacted to the throttle angle.

ECM And PCM Calibration Numbers

Finding out if the vehicle has the latest version or calibration on a module is a required step.

The Impact of Fuel Type on Engine Performance

When choosing the right fuel, consider engine design, manufacturer recommendations and intended usage.

The Latest on Lifters

Advancements in technology, as well as modern testing and research is constantly evolving to make lifters better.

Engine Building 102 – Building The Perfect Top End

Join Doug Kaufman and the experts at Summit Racing for a livestream on November 29 at 1PM EST.