Drive Belt Checklist: What Are You Missing?
You might have only one chance to sell a customer a new serpentine belt. With belts lasting roughly 90,000 miles, proper inspection at the time of failure is critical not only for selling the belt, but also for ensuring add-on sales and better customer satisfaction.
Fuel System Diagnostics Is All In The Fuel Trim Numbers
With lean-burn operating strategies being built into many of today’s gasoline direct-injection and gasoline compression ignition engines, it’s important to build a foundational knowledge of how fuel trims work in the real world.
Import Cam Phasing Systems: Variable Valve Timing
One of the ways automakers squeeze more horsepower and torque from an engine is adding variable valve timing (VVT) to the valvetrain.
VIDEO: Diagnosing Overheating Issues
Andrew Markel talks engine overheating, and four strategic tips to make the diagnosis efficient and effective.
Engine Builder Magazine Launches Fantasy Engine Build Contest
Ever dream of building your fantasy engine? Our sister publication Engine Builder magazine is making that dream a virtual reality with its Fantasy Engine Build Contest.
Picking The Right Spark Plug
If you understand why the manufacturer specified a particular plug technology, you can pick the correct replacement plug.
Curing Intercooler Condensation And Oiling Issues
The combination of a turbocharged, small displacement package pays off in improved fuel efficiency and lower emissions, but some tradeoffs may require extra maintenance or runaround solution for an OE issue on specific engines.
VIDEO: Replacing The Head Gasket On Subaru EJ25 Engines
Andrew Markel discusses head gasket jobs on certain Subaru engines, and how you can ensure the complete job is done right the first time.
Toyota D-4S: Port Fuel Or Direct Fuel Injection? Why Not Both?
You may soon see a Toyota vehicle that has both direct fuel injection and port fuel injection.
VIDEO: Symptoms Of A Head Gasket Leak
Andrew Markel discusses common symptoms pointing to a failed or leaking head gasket, and the tools needed to diagnose the issues.
Seeing The Big Picture With AFR Sensors
Air/fuel ratio (AFR) sensors have become commonplace in today’s automobiles, taking over where traditional O2 sensors have left off.
VIDEO: Common Places For Oil Leaks
Andrew Markel discusses common areas where oil may leak, and chemical solutions for stopping them.
