Andrew Markel, Director of Content
Ignition Coil Output

To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.

Plastic Timing Chain Guides

Timing chain guides are designed to wear, but the guides are designed to last the engine’s life.

It’s Got Spark!

Why can’t you trust some spark tests?

Do Technicians Need Tips?

Asking for a tip would not go over well with your future customers.

Wheel Bearing Shortcuts

When you’re installing a wheel speed sensor on a hub unit, never ever remove it from the original unit. Sponsored by Auto Value and Bumper to Bumper.

Diagnosing Intercooler Boost Trouble Code P0299

The criteria for setting the code is very basic.

Flushing the Brake Fluid is Critical on Every Brake Repair

Making sure the brake fluid is the correct quality is critical. Sponsored by Auto Value and Bumper to Bumper.

Inspection Tips For Chain-Driven Water Pumps

If one water pump fails sooner and is replaced without an investigation, the new pump is likely doomed.

Water pump feature
Power Window Regulator and Motor Service

Power windows are great as long as they roll up and down when commanded to do so.

Why Does Engine Coolant Need Replacement?

Two specifications can be used to justify replacement — the condition of the additive package & the freezing point.

10 Commandments Of Catalytic Converter Replacement

Paperwork, laws and warranty issues can cause headaches.

Hybrid Vehicle Fluid Maintenance

There are opportunities your shop can’t pass up just because the car or SUV has a hybrid badge on the back.