Engine will not shut off
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From: Hartville, MO
Engine will not shut off
Any help will be greatly appreciated!
I turn the ignition switch off but the engine just keeps running. The ignition switch is fine. I had to cut off all air to the engine to get it to stop.
I am thinking that the fuel shutoff solenoid might be bad - is there a way to test it? Does anyone have any suggestions?
Will it have stored a trouble code? The check engine light never came on. Is there a way for me to pull the codes without a code reader?
Thanks,
Jeff
1994 Ford E-350
7.3 (not Power Stroke)
I turn the ignition switch off but the engine just keeps running. The ignition switch is fine. I had to cut off all air to the engine to get it to stop.
I am thinking that the fuel shutoff solenoid might be bad - is there a way to test it? Does anyone have any suggestions?
Will it have stored a trouble code? The check engine light never came on. Is there a way for me to pull the codes without a code reader?
Thanks,
Jeff
1994 Ford E-350
7.3 (not Power Stroke)
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From: Prince George, B.C.
It won't set any codes for that as the engine isn't computer controlled. Start by unplugging the Fuel cutoff sol. and see if it has constant power with a test light, if not, turn the key on and check it whil the glowplugs finish cycling. (thats just so you will be able to hear the sol. when you plug it in. Plug it in and see if it clicks, if not it could be stuck on. I won'trecommend tapping the pump with somthing because i\I don't know what the chances are of doing damage.
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From: Northeastern Pa - USA
One of the wires right on top of the injection is the on/off wire (dont remember which one for sure). By removing the wire with the key in the on position, you should hear the pump clicking. Also as above, see if there is constant power to the pump with the key off. I remember something about the connection on the base of the steering column having a problem fusing together. Also want to make sure you arent sucking lots of oil thru crankcase breather or turbo seals. Go the easy stuff first.
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From: Hartville, MO
I am not exactly sure where the fuel shutoff solenoid is located.
I unplugged 2 wires from the top of what I believe is the fuel pump. It is located on top of the engine and has 2 wires and a fuel line going into it. I started the vehice and it ran fine but still would not shut off with the key.
I unplugged a connector from something attached to the driver's side of the fuel pump. It looks as though this part may have been attached over some kind of shaft on the fuel pump. It has one electrical connector with 3 wires. I unplugged it and it started and ran fine but would still not turn off with the key.
Hmm... what next?
Thanks,
Jeff
I unplugged 2 wires from the top of what I believe is the fuel pump. It is located on top of the engine and has 2 wires and a fuel line going into it. I started the vehice and it ran fine but still would not shut off with the key.
I unplugged a connector from something attached to the driver's side of the fuel pump. It looks as though this part may have been attached over some kind of shaft on the fuel pump. It has one electrical connector with 3 wires. I unplugged it and it started and ran fine but would still not turn off with the key.
Hmm... what next?
Thanks,
Jeff
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From: Prince George, B.C.
The red wire closest to the front of the pump (where the drive gear is) is the shut off, the other red one further back is the cold advance. And yeah, chech and see if there is oil getting drawn into the enging from the turbo or crank case. As for the other 3 wires I have no clue what they are for. I would try lighty tapping the pump with a wrench or really small hammer, it might make a difference. If it is the shutoff it will have to go in to a shop to be fixed.
Post Fiend
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From: Nutter Fort, WV
https://www.ford-trucks.com/user_gal...oid=50079&.jpg
There is an second connector located behind the fuel shut off solenoid connection that is the cold start timing advance solenoid.
I think the three wire connector is for the transmission.
There is an second connector located behind the fuel shut off solenoid connection that is the cold start timing advance solenoid.
I think the three wire connector is for the transmission.
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From: Hartville, MO
https://www.ford-trucks.com/user_gal...oid=75245&.jpg
I take it the thing with the 2 wires (you can only see one wire with a yellow connector - the other wire is connecting behind the fuel line) and fuel line (with red band) going into it is the injector pump - is that right? Just to the right, right under the fuel filter you will see that light grey part with the black electrical connection to it - is that the fuel shutoff solenoid?
I have taken both of the wires off and it still won't shut off with the key.
Any ideas?
Jeff
I take it the thing with the 2 wires (you can only see one wire with a yellow connector - the other wire is connecting behind the fuel line) and fuel line (with red band) going into it is the injector pump - is that right? Just to the right, right under the fuel filter you will see that light grey part with the black electrical connection to it - is that the fuel shutoff solenoid?
I have taken both of the wires off and it still won't shut off with the key.
Any ideas?
Jeff
Last edited by bettendorf; Apr 24, 2005 at 03:35 PM.
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Posting Guru
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From: Prince George, B.C.
Ok, on the injector pump is 2 wires, one is in front of that rubber fuel line in your pic, the other is behind it, the one in front is the shutoff, the other (connector not visible) is the cold advance. The one on the side with what looks to be tape hanging from it is for the tranny.
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Post Fiend
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From: Manitoba
If you have removed all the wires from the IP and it starts and does not shut down with wires removed and key shut off, then the FSS is stuck on or the metering valve is not shutting off.
You can get the fuel shutoff solenoid replaced, or with TSB instructions you can do it yourself. Next time you want to shut it down at idle try squeezing the rubber return line hose on the top of the IP. This should over pressure the IP and it will shut down, unfortunately only at idle not WOT.
You can get the fuel shutoff solenoid replaced, or with TSB instructions you can do it yourself. Next time you want to shut it down at idle try squeezing the rubber return line hose on the top of the IP. This should over pressure the IP and it will shut down, unfortunately only at idle not WOT.
Last edited by PLC7.3; Apr 24, 2005 at 11:16 PM.
Thread Starter
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Freshman User
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From: Hartville, MO
PLC7.3, thanks for the info!
I went to Pep Boys and they have the Fuel Shutoff Solenoid for about $70. Is it fairly easy to replace? Is it located inside the injector pump?
Thanks again for the help... I really appreciate it!
Jeff
I went to Pep Boys and they have the Fuel Shutoff Solenoid for about $70. Is it fairly easy to replace? Is it located inside the injector pump?
Thanks again for the help... I really appreciate it!
Jeff
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beileve it or not, this is a real common problem with the mid year DB2 pump (pre 91 or so). usually it only happens in the larger trucks with the 7.3l (4700 int.. etc), an no one really knows why. if this ever happens to anyone else, you have two options, one try to lightly tap on the top of the pump to free the frozen solenoid, or two, pinch off the return line from the pump to filter housing. either will likely do it.
