Fuel Pump Pressure: Optimal Flow Factors
All too often, technicians assume fuel pressure is “good” without actually measuring it. If the engine runs, they assume the injectors are getting adequate fuel pressure. If the engine cranks but won’t start, and they depress the service valve on the fuel rail and some fuel squirts out, then they assume the injectors have pressure.
VIDEO: Wiring Harnesses On New Fuel Pumps
Andrew Markel explains why you should install the wiring harness that comes with a new fuel pump, even if there is not a problem with the old one.
VIDEO: Three Tips To Extend Fuel Pump Service Life
Andrew Markel offers three tips to extend the service life of a new fuel pump, including cleaning out the fuel tank, replacing fuel filters, and diagnosing and solving driveability problems.
VIDEO: Fuel Pump Replacement On GDI Engines
Andrew Markel offers several tips to make a GDI fuel pump replacement job easier and safer.
VIDEO: Fuel Hose And Fuel Pump Replacement
Andrew Markel stresses the importance of choosing the right fuel hose type for its application on a vehicle.
Automotive Fuel Pump Returns Stink. Literally
The same aroma of fuel that gets our adrenaline pumping at the local race track gives us a distinctly different feeling when we smell it at the front counter.
Subaru Pulse-Width Modulated Fuel Pumps
Many technicians aren’t familiar with PWM fuel pumps because they’re generally very reliable. But now that many import vehicles equipped with PWM fuel pumps are rolling up the miles, it’s time to turn the page from diagnosing two-line and single-line mechanically pressure-regulated fuel pumps to diagnosing electronically controlled PWM fuel pumps.
Automotive Fuel Pumps Continue To Evolve
On most applications, the pump runs at a constant speed (typically 3,000 to 7,000 RPM depending on the design). However, on many newer vehicles pump speed is controlled by the PCM and will vary depending on engine load and speed. The most common type of electric fuel pump today is the turbine style pump. An impeller ring with many small blades is attached to the electric motor inside the pump.
Tech Tip: Fuel Pump Float Arm Assembly
The float arm is shipped loose to avoid unnecessary damage and disruption during installation. The undamaged float arm assembly should be properly mounted to the fuel level sender before installing the pump module into the fuel tank.
Airtex Fuel Delivery Systems, a leading manufacturer of fuel pumps, is introducing a new pilot program focused on educating future technicians in the automotive industry. The Airtex PUMP•ED program will train student technicians across the country in the areas of fuel system diagnostics and fuel pump installations. Set to kick off in the fall of
Under the Hood: ‘Tanking’ Fuel Systems
Diagnosing Failing Fuel Pumps
Quick Quiz: Fuel Systems
Do you know the proper procedures for a fuel volume test of the fuel pump? Do you know the data operation of the 4 types of O2 sensors? Test your knowledge on the comprehensive tactics of fuel system testing strategies with this five question quiz.
