I have checked for power at the fuel pump and yes power is present. made no difference so I hooked it back up. Recently as seen on YouTube I tried to circumvent the vechikes anti theft system and cut the small yellow wire and small orange wire at ignition switch and wires them together and re learned the key to system. Have checked for crank fuse while cranking and yes fuse is good
#2004 explorer fuel pump replacement drivers#
Have check main ground drivers side bottom of block Have checked for grounds thru out injector harness Have checked grounds ar rear of head and re routed passenger side
Have checked for injector pulse.yes has injector pulse Have repalced crank sensor.have not been able to relrarn since truck won't start Has 58 cranking and settles to 51 with key in on position not running. Have you tested the fuel pressure on the fuel rail ?Ģ001 Tahoe crank no start Have replaced fuel pump three times in 7 days. The only way to clear this is to have the truck start, or disconnect the battery. If you are testing and the truck has not started, the PCM will shut off the Fuel pump after 5 seconds ( 8 ? ) of not having started. The fuel pump relay coil is powered by the PCM power relay. The fuel pump relay normally open contact is powered by Fuse #34 ( this fuse also feeds the PCM ). The PCM is also connected to the fuel pump driver module
The fuel pump is powered from the Fuel pump relay ( non serviceable in the Cab fuse panel ) to the fuel inertia switch to the fuel pump driver module. If it is a New body style, have you checked / replaced the fuel pump driver module ? This is on the cross member by the spare tire, and some times they get corroded and crack. Is this a 2004 New Body style or 2004 Heritage / Lightning ? Have you checked the fuel inertia switch in the passenger side kick panel ?
#2004 explorer fuel pump replacement mod#
Not sure what secondary fuel mod you are posting about, can you explain what this is ?
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