7 3 Powerstroke Fuel Pump

To optimize performance the fuel pressure should be relatively steady and 60 65 psi.

7 3 powerstroke fuel pump. The stock fuel system has enough supply for the stock 7 3 obs 90cc injectors. Stumbles between 2500 and 3200rpm very noticeable. The fuel system is designed to supply the injectors at 50 60 psi even a wide open throttle. Symptoms of a bad fuel pump.

Larger supply pumps or even an entire fuel system will be needed to achieve more that a small performance increase. These vehicles have a ford power stroke engine which is a diesel engine with fuel injection that is typically turbocharged. This bosch electric fuel pump is the exact same pump supplied by ford in 1999 2003 7 3l powerstroke super duty trucks excursions and vans. The fuel pump will run for about 20 seconds each time the key is turned on and it may take a couple of times before the air is worked out of the system giving a steady reading.

If the pressure is in the normal operating range of 45 65 psi but below the optimum small shims can be used in the cup of the piston. Even when you install a performance chip for a mild upgrade the system starts having issues with supplying the proper pressure for atomization. Adding moderate to extreme performance products could drop the fuel. A 7 3 liter engine is most common in ford super duty trucks manufactured from 1995 to 2002.

When you add performance modifications to the old body style 1994 1997 engine to increase fuel and air then you should consider a fuel system upgrade. Also slower than usual rpm acceleration lots of blue smoke and tough star. The fuel pump for this engine must keep the fuel at high pressure in order for the fuel injectors to function properly.