Engine/Transmission (1994 - 1998) fuel shutoff valve.

[DThibault]

I have a 95 that has been sitting all summer and tried to start it today. The fuel shutoff solenoid was not operating smoothly so I disconnected it and operated it manually. The truck started right up and then slowly stumbled and quit. Can something come apart in the valve in the pump and plug the flow? Is there a quick fix or does the injection pump have to come apart? If so can a somewhat handy guy do it or does a pump shop have to do it? Thanks for your help.

 

[Joe G.]

It's not clear what you did to start it. Did you disconnect the fuel solenoid and them start it by pulling it up manually? If you did that and did not have some way to keep it pulled up the engine will die. The fuel solenoid does not operate a valve. It restricts operation of the rack.

 

[DThibault]

Thanks Joe, that is what I did but did not see the lever retract. I will try again this evening after work. Thanks again for your help. Dave

 

[Joe G.]

You probably have a bad fuel solenoid relay or the dark blue wire to the positive post of the battery is corroded. Since the truck sat for a long time I suspect that you should clean all the connections on the driver side battery. If that does not work then the larger of the two relays on the firewall on the engine side of the master cylinder is the fuel solenoid relay. Swap it with the smaller one beside it and see what happens. If that works then you need a new relay. The smaller relay will work for a while but it will eventually fail. You can get a new relay for less than $9 here: NTE Electronics, Inc. - R51-1D70-12 - Sensors, Switches & Relays - Relays - Allied Electronics

 

[Missouri Mule]

DThibault, after putting the solenoid back on all you have to do is plug in the connector and push the rod up with the key in the "run" position. The rod should stay up. You shoud be able to start your engine and it should stay running.

You can have someone try to start engine while you look at the rod rod to see if it goes up (if it doesn't follow JoeG's directions).

 

[MLee]

Joe;

you being the guru on this mater, is 70 amp relay definitely required? I was wondering if a lesser 60 amp would be just as effective. A while back a 30 amp from Radio Shack was good for emergency get you home thing. Just wondering.

and thanks.

 

[Joe G.]

A 60 amp relay will work ok. The circuit draws 40 amps. The 70 amp relay is stock and a bit of an overkill, but the 70 amp is more common and probably cheaper. See the link I posted above. Make sure that the pin configuration will fit the socket.