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Shuts off when i step on gas
- Thread starter TOBEXA
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CCATLETT1984
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first, change your fuel filter.
Once thats done, we'll consider other things.
Once thats done, we'll consider other things.
CCATLETT1984
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no valves to check. try unscrewing the fuel filler cap and then see if it still has the issue. (will remove a clogged vent as the issue)
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Check for a crimped or kinked fuel line somewhere. Sometimes, if only a little fuel is needed, it runs, but step on the gas pedal, and it stalls out. I had a pickup and two deuces like that.
Crash_AF
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The fuel pump might be failing and therefore starving the engine for fuel... take the outlet line off the pump and put it in a bottle, crank it for a couple of revolutions and see how much fuel it delivers...
Later,
Joe
Later,
Joe
CCATLETT1984
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The lift pump is not needed on these trucks, once running the IP will siphon enough fuel on its own.
If you do try what Crash is suggesting, pull the pink wire off of the injector pump. That way you dont suck air into the IP, and invite yourself for a day of fun bleeding the air out from all the lines.
Your issue is definitively a fuel supply one. It could be that the filter sock (more like mesh) on the pickup tube inside the fuel tank is clogged. On the passenger side of the frame, just to the rear of the front tire, there is the main fuel line running from the tank. you will want to pull the rear line out of the distribution block and blow ~5psi of air through it (REMOVE THE FUEL FILLER CAP FIRST!!!!) that will clear anything clogging the sock.
Then reattach the line. Pull the pink wire from the IP and bleed the fuel filter, Once you get the air out start the truck and see if you notice a change. Doing this is a temp fix, if it works you need to pull the fuel tank and clean it out.
If you do try what Crash is suggesting, pull the pink wire off of the injector pump. That way you dont suck air into the IP, and invite yourself for a day of fun bleeding the air out from all the lines.
Your issue is definitively a fuel supply one. It could be that the filter sock (more like mesh) on the pickup tube inside the fuel tank is clogged. On the passenger side of the frame, just to the rear of the front tire, there is the main fuel line running from the tank. you will want to pull the rear line out of the distribution block and blow ~5psi of air through it (REMOVE THE FUEL FILLER CAP FIRST!!!!) that will clear anything clogging the sock.
Then reattach the line. Pull the pink wire from the IP and bleed the fuel filter, Once you get the air out start the truck and see if you notice a change. Doing this is a temp fix, if it works you need to pull the fuel tank and clean it out.
JAsher45
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the engine will barely idle if the timing on the pump is off on tooth on the gear let alone make it to 1200 rpms... i agree you have a fuel issue. get a pressure guage and install it inline between your lift pump and IP. you should have 4-6 psi. if you don not your lift pump is going bad.
CCATLETT1984
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what was the fix for getting it this far?
JAsher45
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need to have some details on what all touble shooting you have done thus far. it is possibel that your fuel shut off solenoid is going bad in your pump but they normall do that when they are hot and will stick closed.
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I am surprized no one asked about stepping on the GAS versus stepping on the throttle or acellerator. You do have fresh diesel in it right? I would look at pressurizing the tank with a rag in the filler and an air hose running about ten pounds of air pressure and have a friend try to start it and let it go through a few cycles I used to fix non starting Thermkings this way.
JAsher45
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TOBEXA said:
Does he mean injection pump? cause there is nothing of that nature on the engine or truck.
Somemedic
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Wat the hell is a fuel distributor? Id bet hes sucking air in someplace, rubber hose or filter housing or something... Have your mechanic show you wat this distbutor is. Id be very intrested on how much it is as well.
CCATLETT1984
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He must be talking about the injection pump, while it is a possible cause of your issues, I'd want to try the cheap stuff first.