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PCV System DTC

PCV systems are far more complex now, but they are also much better at controlling crankcase pressure.

Engine Bay Covers: Cosmetic or Comedic?

Each year, it seems engine bay covers get bigger and more difficult to remove.

GM Diagnostic Tip on Misfires, Noises and DTCs

Determine which description best matches the vehicle you are working on, and perform the suggestions as necessary.

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.

Variable Valve Timing Systems (VIDEO)

Variable valve timing systems allow today’s engines to maximize performance and drivability.

10 Timing Belt Tips

Here are the some key installation and service tips to make your next timing belt job just a little easier.

Acura High-Pressure Fuel Pump 

Follow the correct repair procedures for a high-pressure fuel pump that is making a chirp.

The Five Jobs of Engine Oil: LSCCC (VIDEO)

Motor oil lubricates, seals, cleans, cools, and cushions an engine. This video is sponsored by Rislone.

GDI Fuel Pumps and Diagnostic Margins (VIDEO)

A small change can have implications for emissions and drivability. This video is sponsored by Carter Fuel Systems.

GDI Fuel Pump Pressure Control (VIDEO)

A high-pressure direct injection fuel pump can vary the pressure to the injectors. Sponsored by Carter Fuel Systems.