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Originally Posted by jays2003
Well the cab was taken off and a new fuel pump and wire harness installed This is what the hotline told him to do. They did not even send out a tech when they said they would. The tech put it all back together and started the truck. ran for about a minutes then died. now it will not start just turns over. It has been there for a little over 2 weeks . anyone have any ideas?? They said a ford tech will be out monday ... right.. I have some pics of the cab off, check them out.
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Interesting photos. The part I have a hard time with is the fact that with the no-start condition, it has to be throwing a code that is useful in the diagnosis! There was an issue with a wire harness that was causing a no-start condition. Here is a quote from that.
Quote:
Some 2008 F-Super Duty vehicles with 6.4L Power Stroke Diesel engines built before August 20, 2007 may experience a check engine light on, a lack of power or no start condition. The affected vehicles have engines that were assembled using a fuel pump cover gasket that has unprotected wiring that may chafe on the fuel pump causing a grounded circuit. See photo on the right. The circuits involved are the power supply and the control circuit for the volume control solenoid. A grounded circuit will cause driveability concerns and may set DTC's P0003, P0004 and P0091. Technicians servicing the vehicle may also discover fuse #74 at the battery junction box open which is the VPWR circuit for several engine components including the Volume Control Valve (VCV), Pressure Control Valve (PCP), Glow Plug Control Module (GPCM), EGR Throttle Plate Valve, Electronic Fan Clutch, Turbo Charger Actuator and the Mass Air Flow sensor (MAF).
On December 13, 2007 Ford issued TSB 07-26-2 which provides the part number for the new fuel pump gasket. Below are the old gasket on the left and the new gasket on the right. The new gasket has added protective tubing over the VCV wiring. Owners and technicians should understand that the repair procedure to replace this gasket requires cab removal to complete.
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Have they checked for any blown fuses as stated above??
Technicians servicing the vehicle may also discover fuse #74 at the battery junction box open which is the VPWR circuit for several engine components including the Volume Control Valve (VCV), Pressure Control Valve (PCP), Glow Plug Control Module (GPCM), EGR Throttle Plate Valve, Electronic Fan Clutch, Turbo Charger Actuator and the Mass Air Flow sensor (MAF).
