Fuel Pump Diagnostics: Using Scan Tools
With a scan tool, it’s possible to verify if the modules controlling the fuel pump are receiving the correct data like oil pressure, crank position and key position.
Alternator Pulley Diagnostics
When faced with an illuminated charge light diagnosis on most late-model vehicles, do not automatically assume the problem is inside the alternator and potentially unserviceable.
Catalytic Converters: Efficiency Code Diagnostics
Understanding catalytic converter efficiency codes can be a long diagnostic road that can either lead to a happy customer or an expensive comeback.
Dual Clutch Transmission Diagnostics
The dual-clutch – or as some drivers call them “flappy paddle” – gearboxes have garnered a bad reputation.
The Complicated Truth Of Alternator Testing Diagnostics
One test is not enough if you are diagnosing a charging system problem. All too often, the alternator is condemned as the source of the problem if only battery voltage is present with the engine running.
Air Ride Diagnostics: It’s Not Just Swapping Parts
Air ride systems can control vehicle ride height, passenger comfort and improve handling. How they operate and work with the rest of the systems on the vehicle is part of the embedded logic of their control system.
Auxiliary Water Pump Diagnostics
A car or truck comes into your shop with a complaint of poor heater performance.
Ride Height And Spring Diagnostics: Why Do Springs Droop?
No road is entirely flat. Even a small tar strip or dip causes movement in the suspension.
Honda EVAP Diagnostics
To understand how any EVAP system in a Honda or other vehicle works, you have to know how the EPA tests for evaporative emissions.
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.
