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Discussion Starter · #1 ·
i started to put my truck together today it ran when it was taken apart but now there is no fuel coming from the injector pump there is plenty getting to it just none coming out of the delivery valves:confused013:
 

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check the easy stuff first.....the shut off solenoid pulling up when you hit the starter ?
 

· 08 Cummins
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Sounds like you either didn't get something connected correctly when you put it back in.....or...... a wire was cut when you pulled/re-installed the engine. Start at the fuel shutoff have someone turn the key and see if you get 12V on the Red/Violet wire. If you get 12V you should be getting fuel, if not it maybe the selonid. If you don't get 12V start working backwards to the switch.
 

· 08 Cummins
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I'm missing something some where, and I'm getting mixed messages. One post leads me to, the pump will not move fuel if the selonid is up, but another post says the selonid won't move with the key. Does this mean your opening the fuel shutoff by hand and someone else is cranking the engine and it won't start or something else? I must be getting way to old.
 

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Discussion Starter · #13 ·
yes tried cranking it no fuel. checked solenoid and it wasnt moving so i held it up and my buddy cranked the motor over and still no fuel. sorry for the mix up
 

· 08 Cummins
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OK, I'm not going to pay any attention to the soleniod for now, get back to that later. You have fuel coming to the injection pump and with the soleniod held up nothing comes out of the fuel lines, and that has been checked because the lines have been cracked while the engine is cranked, right? So with the engine cranking, fuel coming to the pump, soleniod held up and no fuel coming out of the lines, the engine does not start. Is the injection pump turning ?
 

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I'm not sure what is happening from the description of the symptoms. Remember the fuel solenoid will NOT pull up if the key is on. The key has to be turned to the start position to cause the fuel solenoid to pull up. It will then stay up until the key is turned off.

You will get fuel to the injection pump regardless of the fuel solenoid position. The fuel solenoid allows fuel to go to the plungers. It does not stop fuel from going to the IP.

If the fuel solenoid is working and the injection lines are empty it may take quite a bit of cranking to get it to start. When I had the lines off my '95 to clean off the ugly chipped paint it took three cycles of crank for 30 seconds and let the starter cool for two minutes to start it. While doing this press the pedal a little just in case the idle is too low for the engine to start.
 

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Discussion Starter · #16 ·
OK, I'm not going to pay any attention to the soleniod for now, get back to that later. You have fuel coming to the injection pump and with the soleniod held up nothing comes out of the fuel lines, and that has been checked because the lines have been cracked while the engine is cranked, right? So with the engine cranking, fuel coming to the pump, soleniod held up and no fuel coming out of the lines, the engine does not start. Is the injection pump turning ?
the lines to the injectors are not even on the pump i was just trying to get fuel out of the delivery valves and the pump is turning over
 

· 08 Cummins
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the lines to the injectors are not even on the pump i was just trying to get fuel out of the delivery valves and the pump is turning over
OK you turn the key to ON and the lift pump is moving fuel to the injection pump because the line coming in can be cracked and fuel comes out. Now lets go back to the Seleniod. I do not believe you can move the fuel shut off seleniod by hand. If you move it by hand it is not opening the valve. All the research I see there is no way to get at it, so your missing 12V to the start side of the soleniod.

Pull the connector off the soleniod and put a meter on the wires going to it. Turn your key to start and you should get 12V on the Red wire with a violet stripe. If you don't get 12V start circuit tracing backwards. If you get 12V then go get another soleniod.

If your not getting 12V, You should be able to jumper the soleniod by pluging it in, stripping back a small amount of insullation (red/Vio wire). Connect a lead from the posative battery terminal (be carfull not to touch a ground), then when someone cranks the engine touch the wire through the insullation and you should see fuel come out of the pump. If this doesn't work you have an electical problem and a soleniod problem.
 

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Discussion Starter · #18 ·
ok ill try that but i think you can move it by hand i moved something thats hooked to the solenoid but i will try that i have to let the batterie charge first but ill try it
 

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you can get at the solenoid control arm, just turn the key on , do not hit start. pull up on the solenoid rod. it should lock in place. there is actually 2 solenoids in there, one pulls the shaft up, other holds it in place.
easy way to do it is just look at the control arm and have someone bump the starter and then leave the key on (or check position before and after yourself). you will see the shaft come up and stay in place if it working. A low battery can keep em from pulling......found that out by experience. They will hold but not pull. I just pulled it up manually to get it to start on that occasion. (went to batt store right then too)
 

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Discussion Starter · #20 ·
thats what mine does and my batterie was low when i checked that and thats the one i was lifting up on it would stay up if i lifted it but go down when the key was turned off so ill let the batterie charge and try it again also that boot is hammered on mine does any body know where to get a new one
 
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