VIDEO: Loose Fuel Cap Warning? Check Out This Nissan TSB
Andrew Markel discusses the “Loose Fuel Cap” warning on most modern Nissan vehicles, and the procedures detailed in TSB NTB13-097e to help diagnose the issue.
VIDEO: Where Have The Fuel Pump Filters Gone?
Andrew Markel discusses how to diagnose a fuel pump, and the importance of replacing the entire module if the pump is failing.
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.
VIDEO: Diagnosing Intermittent Fuel Pressure Issues
Andrew Markel discusses fuel pressure, and the different ways to diagnose issues without using a pressure gauge.
VIDEO: Diagnosing Fuel System Leaks In GDI Systems
Jason Stahl discusses gasoline direct injection systems, and ways to prevent leaks in the system after a fuel pump or injector have been replaced.
Fuel Injector Function Testing
If a fuel injector is not operating within set parameters, it can cause driveability symptoms and codes that can point to components other then a faltering fuel injector.
VIDEO: Test Your Fuel System Cleaner Knowledge
How much do you know about Complete Fuel System Cleaners? Counter Intelligence is Next!
Diagnosing Pulse-Width Modulated PWM Fuel Pumps
Here are five things you should know about pulse-modulated fuel delivery systems.
Hyundai Fuel System And Emissions Diagnostics
We recently had a 2002 Elantra GLS in the shop with assorted issues, so let’s take a look at this job since it’s a good example of some common problems we see.
Audi Fuel System Diagnostics
When a 2009 Audi A4 was towed in the other day, and Code P0087/16471 “Fuel System Rail Pressure Too Low” was found stored in the ECM, it was way too easy for my tech to say, “I bet it needs a new high-pressure pump.” If I were a betting man, he would have lost. It seems that nine times out of 10, it does need a high-pressure pump, but there are other problems that will set that code.
BMW Fuel System Repair Essentials
The BMW N54 fuel pump recall a few years ago brought to light the importance of the integrity of the fuel system and how it can contribute to the overall reliability of a vehicle. While BMW never officially stated what was causing the high-pressure fuel pumps to fail, some put the blame on low-quality fuel that might have been contaminated or had higher-than-normal Âlevels of ethanol.
Under the Hood: ‘Tanking’ Fuel Systems
Diagnosing Failing Fuel Pumps
