Question about 1996 Ford Club Super
I have a 1993 E-350. My van suddenly died and it seemed the fuel pump was bad as when striking the side of the fuel tank it suddenly came to life, I replaced the fuel pump and 2 days later it died in the same way. Then it would work, but if you shut it off it wouldn't restart as the pump wouldn't work. I hooked up to an OBDII and got code for Fuel Pump Secondary Low Voltage?? Any Help???
Check the fuel pressure regulator on the fuel rail pull the vac-*** hose off some times they get a hole in
the diaphragm and when this happens they will load the intake up with gas and after you get it started
you have to keep giving it more gas to keep running and eventually this can fill the crankcase to the point of wydalock most ford dealers and other mechanics miss this till it is to late
very easy to check just pull hose off and start or try to start watch for fuel to come out of the regulator good luck tlw
Posted on Mar 19, 2009
1994 econoline fuel system electrical
Vehicle Application Escort/Tracer, Crown Victoria/Grand Marquis, Thunderbird/Cougar, Town Car, 5.0L Mustang, Aerostar, Ranger, Explorer, E-Series and Bronco.
Fuel Pump Circuit Operation When the ignition is switched to the ON position, it turns the EEC Power Relay on. The EEC Power Relay provides power to the EEC-IV processor and the control side of the fuel pump relay. Power for the fuel pump is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flow is through the fuel pump relay and Inertia Fuel Shutoff (IFS) switch to the fuel pump. The IFS switch is a safety device used to shut off the fuel pump in the event of a collision. If the IFS switch is "tripped," it must be reset by depressing the white or red button on the top of the switch. The fuel pump relay is controlled by the Powertrain Control Module (PCM).
When the ignition switch is turned to the ON position, the fuel pump will operate. If the ignition switch is not turned to the START position, the PCM will shut the fuel pump off after approximately one second. The PCM will operate the fuel pump when the ignition is in the START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump unless the engine stops, engine speed drops below 120 rpm, or the IFS switch is "tripped."
System Diagnosis Note: Grounding the FP lead at the DLC will allow the pump to run continuously with the ignition switch on.
Posted on Feb 17, 2009
You need to check the wiring connections and the ground to the fuel pump (the culprit in most cases is the ground circuit but you could have a deteriorated plug some where in the wiring to the front of the vehicle)
Posted on Feb 16, 2009
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