rear tank
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rear tank
Ok, new everything, including 1/2 inch braided pvc for venting...cannot put a single drop of fuel in rear tank unless I drive up on block to lift rear of truck 6-8 inches...even then, have to dribble it in. Any suggestions aside from replacing entire fuel system with newer style... 1984 F250 6.9idi 2wd T-19
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From: Virginia
You have a diesel, which is worse than gasoline for foaming. Going to a newer setup won't help much, my 1989 had the newer setup and I could not get fuel in it either. What fixed it was to redo the vent system.
On your diesel, you have a small vent that just has a small rubber line that runs over and clips to the frame. That is to let air in when the engine is pulling fuel from the tank. What I and other people did was to drop the tanks or pull the bed, and take this small vent line off and also take the plastic roll-over valve out of the top of the tank. Leave the grommet in place. I found a 1/2" or 3/4" (I forget which) copper elbow I had laying around fit snug into the grommet. So I used that and a short piece of copper pipe soldered to the elbow, and ran that across the tank, and then slipped a piece of rubber hose onto that and ran it over and tied it up out of the way. I put piece of screen on the end so bugs would not build a nest down in it.
After that, I can fill almost full force from the fill station on both tanks.
On your diesel, you have a small vent that just has a small rubber line that runs over and clips to the frame. That is to let air in when the engine is pulling fuel from the tank. What I and other people did was to drop the tanks or pull the bed, and take this small vent line off and also take the plastic roll-over valve out of the top of the tank. Leave the grommet in place. I found a 1/2" or 3/4" (I forget which) copper elbow I had laying around fit snug into the grommet. So I used that and a short piece of copper pipe soldered to the elbow, and ran that across the tank, and then slipped a piece of rubber hose onto that and ran it over and tied it up out of the way. I put piece of screen on the end so bugs would not build a nest down in it.
After that, I can fill almost full force from the fill station on both tanks.
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Guess I'll have to live with it...have had bed and tanks off too many times...this is it. Might try and tinker with the fill tube positioning...if I can get it higher than it is, might help some...
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From: Angier, NC
I had to drop the rear tank because the new sending unit stopped working. I did not want to remove the bed with fresh paint on the truck and no easy way to lift it,.
I also did not want to remove the filler door, again fresh paint, so I left that hooked up.
I was able to sneak the sender out of the tank, found the float was bad so installed an old one and got everything back into place.
When I filled the tank is when I found it did not want to fill like it did when I first installed the tank. I think the vent tube slipped out of the holder either top or bottom but don't know for sure?
I have found if I lift up on the nozzle it will fill pretty good till full, side tank I don't need to do that to fill it.
Dave ----
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From: Virginia
You may be able to mess with the front tank without pulling it. I can see the top of mine if I carefully stick my head between the driveshaft and the tank. There is room above the front tank. The rear tank is the one that is tight. That is why I used that tight copper elbow, there is little to no room on top of the rear tank.
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