Stuck on highway

BrianX128

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I'm on the side of the road in my new 6.9 just died on me won't start and I have no tools. Not getting fuel.
 

towcat

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i need to take pics of my "first aid kit" and post it.
do you have a "hot start" buttoin and a test light?
 

BrianX128

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No dad's about to be here i think the 6.9 water separator sucked air and stalled me. Was coming home from lowes buying a 3/8 barb fitting to literally bypass it
 

BrianX128

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Got 4 miles and it's dead again. So pissed off. Just won't stay running. Can't get fuel. Supposed has a new lift pump and I think it does but it won't run
 

jwalterus

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Fuel filter plugged?
Any chance it's waxed up from light gelling over time?
Plenty of fuel in the tanks? (I know you should know better, but still.... LOL)
 

BrianX128

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Fuel filter is new. I’ve been taking it off and dumping atf in it. We limped it 5 miles and a buddy is gonna tow it to my garage. Every time when it dies the fuel filter is down 1/4 of an inch. But it being a 6.9 the water separator was totally full? Truck is almost full tank wise.

I’m guessing that the return line from the first cylinder on the passenger side that goes up to the top of the fuel filter is sucking air bad. It’s just weird that the water separator is full but the fuel filter isn’t.

How does the lines go on a 6.9?

Is it tank, water separator, lift pump, then fuel filter and ip?
 

Thewespaul

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Maybe lift pump pre maturely failed? Wouldn’t be the first time! Can you get any fuel out the valve when cranking?
 

BrianX128

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Well.. if that isn’t a cracked feed line from the lift pump to the fuel filter then I’m a giraffe.

My manifold should not be wet like that. I can’t get it to fire up to check cause the batteries are totally dead now but I’d bet there’s some leakage there. Probably small crack which didn’t effect it much after the previous owner put it on and after a two hour drive home it really opened up.

So can I get two barb fittings for there and the fuel filter housing and some sort of rubber hose and bypass the metal line for now? And if so what size barb fittings would I need cause I’m too brain dead at this point to look up anything.
 

BrianX128

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Maybe lift pump pre maturely failed? Wouldn’t be the first time! Can you get any fuel out the valve when cranking?

So turns out no. Got truck back to the garage. Filled fuel filter to the brim and got it to run for a minute but it died again. Took fuel filter off and repeated. Didn't fire as batteries were dying again. Took fuel filter off and it was 3/4 empty. Dad was watching the lift pump our last attempt and saw a leak from the steel hard line so we tried cranking with the Schrader pressed in fuel filter filled to the brim again and nothing even with it full and it was mostly empty again. It's just draining back to the tank and not pumping up. Truck must have ran home for me yesterday when I bought it on a 147 mile vaccuum inspired journey.

I wonder what the best electric fuel pump i could get at the parts store until my facet pump I ordered tonight comes in to get it running again would be? I'm off the next three days and would like to get it going even if the parts store electric pump gets punted when my dura lift gets here. No way I'm doing mechanical again. This is two times two mechanical have left me in an absolute mess at night on the side of the road.
 

Thewespaul

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When’s the facet getting there? I have a pump I can send you, I can overnight if need be, you can send it back if you want to use the facet instead once it gets there
 

BrianX128

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So update. I swapped the facet from my other idi put my block off plate on and wired everything up and it won't pull fuel. Tank has plenty. I took the lid of the water separator and the level of the fuel doesn't go down while the facet is running and I hear air.

So I cut the inlet and outlet from the water separator and blow 10psi through both hoses. Towards my pump was clear air went right through and same back to the tank I can hear the air bubbles. So I'm just gonna splice those hoses together and eliminate the water separator and if all my lines are clear like they seem to be i should pull full easy I think? I don't even think the lift pump was bad but I don't give a damn at this point.
 

Thewespaul

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If that doesn’t work maybe try running the facet off a bucket of diesel, if you have no issues you know it’s upstream of the pump that you have problems
 

BrianX128

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Yeah. I mean when I blew air through the hose from the tank to the water separator it wasn't like there was any crazy restrictions and I heard the bubbles coming up in the tank so I'm out getting a 3/8 hose barb again to bypass the water separator. I already uses last night's 3/8 barb to connect my facet pump. The fuel tank I'm using is brand new so there shouldn't be crud in it and the line looks new ish too. The lines to and from the water separator look 35 years old though and there connected to some weird little metal thing with electrical wires going to it that looks like the fuel filter on my 90 gas f150.. I'm wondering if it's a dead little mini inline pump I'll take a picture when I get back from ace.
 

Thewespaul

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Definitely could be. I know on our 90 I had to delete an inline switch that had been added by the P.O. to run off a transfer tank in the bed.
 

snicklas

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If it’s a fat section in the fuel line near the engine, that the fuel heater on the bull nose. Not sure exactly where it is, but it’s a metal section and is fatter than the rest of the lines.
 
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