Join Date: Jul 2008
Location: Central NY
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Fuel Pump cut out- electrical help
2002 7.3 excursion
Lost fuel pressure close to home. limped to the driveway and began to trouble shoot. I thought the pump was shot so I got a new one. I have found the following:
Only 6-8 volts to pump.
Only 6-8 volts at inertia switch on pass side
12 volts at fuse #40
I am lost as to where I am losing power to the pump. I need a wiring diagram and someone to talk me through this like the dummy that I am with electrical. I think there is a relay behind the radio but I could not find it and thought a relay will give me on or off power anyways.
To top it off I broke the rear quick connect to the fuel pump so I will also need a little advice on that when I can figure out the electrical side.
I do not want to take this to the dealership if at all possible so if anyone can help I would appreciate it.
2002 Excursion Limited 7.3 PSD 170k and counting
AFE Intake, Edge PHP Gryphon, rancho 9000 front shocks, V& Modded B code spring upgrade DFA V3, upped tire size 285/75/16 nitto dura grapplers.
4" Diamond Eye turbo back, 6.0 tranny cooler upgrade.
2002 Exscursion 7.3, PHP Gryphon, DFA V3, V& Modded B codes, 6.0 Tranny cooler, 285/75/16 Nitto Duragrapplers, Pulling a 26' TT. 180k/mi and counting.