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Old 12-03-2009, 02:45 PM   #1 (permalink)
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Cummins 8.3 Ford L8000 ** HELP **

I have a 1996 Ford L8000 with Cummins 8.3
I bought it about 6 months ago... it fired up when i bought it and i drove it for 6 hours with no problems. I parked it and fired it up again 2 days later, and then it sat for a week then wouldn't start. (i think a switch got left on somewhere).

I replaced all 3 batterys and have power now, only now it won't start. I sprayed a little starting fluid and it tried to turn over but wouldn't stay.

Someone told me to change the fuel filter and add "diesel 911" to it.
A buddy told me that he has to plug his diesel pick up in for a couple hours for it to start, but mine has no plug anywhere that i could see.

I don't know. I have never owned a diesel, let alone a diesel dump truck of this size.
I need some help please.

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Old 12-03-2009, 05:56 PM   #2 (permalink)
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Sounds like you might have some air in the system. Is there a primer on your fuel transfer pump? The transfer pump should be on the driver's side of the engine, just below the fuel filters. The fuel line going from the filters to the inline pump should have a banjo fitting that has a 10mm bleeder screw in it. Loosen that and try and prime the fuel system by hand. There should be another bleeder, on top of the fuel filter housing on the return side that takes a 12mm wrench. You might loosen that one and try and get fuel out of it too. Try and keep pumping until you get fuel with no air bubbles in it and the primer gets hard. If that doesn't start it. Crack the nuts on the fuel lines that go into the injectors and crank the engine until you see fuel squirting out of them and then tighten them back up. It might be something else yet but should be a good place to start.
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Old 12-03-2009, 11:33 PM   #3 (permalink)
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Thanks. I do remember seeing a primer. it said something on it about pushing it to get water out and then something about getting air out. it has a drain knob on the bottom of it. Not knowing what the problem was i replaced both of the fuel filters.
Thanks for the direction though. i will try that tomorrow. hopefully it works.
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