6 4 Powerstroke Low Pressure Fuel Pump Replacement

I also forgot to mention that the entire engine wiring harness has been replaced and it has the same symptoms.

6 4 powerstroke low pressure fuel pump replacement. High pressure pump with dtc p0088. A fuel cooler system cools fuel that returns from the injectors and the high pressure pump. I have checked the low pressure fuel and it hovers right around 5 6 psi. The 6 4l diesel is the first ford engine to feature a high pressure fuel pump mounted underhood in addition to a low pressure fuel pump located within the.

All units are completely disassembled and precision cleaned. Fuel contaminants can cause wear and premature failure of the pumps. 08 10 ford 6 4 powerstroke diesel fuel injection pump. The adapter learning parameter reset has not been done yet.

Is this something that you can do yourself or will it need to be done at a dealer. The harness came from my other 6 4 that cracked a piston a few weeks. On the 6 4 applications a schrader valve test port is provided on the fuel cooler assembly. The pump is capable of creating pressures in excess of 24 000 psi regardless of engine rpm.

The 6 4 ford powerstroke engine s low pressure fuel system uses a horizontal fuel conditioning module hfcm to pump fuel from the tank to the engine. In the low pressure system fuel is pumped from the fuel tank to the primary fuel filter by the electric pump at about 5 psi to 10 psi during engine idle. Same issue with another hpfp. The 6 4l ford powerstroke diesel engine like its earlier cousins features a low pressure fuel system that delivers fuel from the tank to the high pressure pump.

The normal operating pressure is 3 8 psi. Instead of controlling fuel delivery with pressurized oil the engine uses a high pressure fuel pump to create very high fuel pressure and store it in the two fuel rails that directly feed the injectors. A properly functioning high pressure fuel pump is critical to maintaining fuel rail pressure at all engine rpm levels. Only surges on initial startup.

The high pressure pump increases fuel pressure for delivery to the fuel injectors. Also doing fuel filters and an oil change while i m already all dirty. New rail pressure sensor as well. 7 psi outlet pressure at low pressure pump 6 psi on top of fuel cooler.

Components are recertified to tight. Unlike the 7 3 and 6 0 powerstroke engines the 6 4l is a common rail diesel engine.