95 ford e150 vapor canister
getting a pump kick off when trying to put gas in. can use a gas can but it is very slow and sounds like a glug glug as air and gas swap. traced the end of the tank and found a port that has a hard and a rubber hose.. the rubber hose ends over the edge of the gas tank and has a cap on it.. the hard line runs along the rail to a rubber hose that then spits into a tee. with one side moving into the engine. the other connects to the vapor canister with nothing coming out just a cap on the other canister hole.
I think your problem is in the main fuel filler hose, it is a 2 piece unit with the smaller hose feeding into the tank and the larger one is the vapor release for the incoming fuel. You may have to remove the fuel filler hose assembly from the tank and make sure that the smaller hose hasn't broke free from the filler neck at the nozzle input. As far as the canister lines, the one that goes over the edge of the tank if you look closely at the plug you will see that it is not a plug but a small vent, it should be the same with the other one, the line that runs up to the engine should be on a manifold vacuum source. Hope this helps.
i ran a line of stiff house wiring down the filler neck and kind of felt like something may have been in there. when i fill with a gas can it backs up to the cap. i dropped the filler pipes and then ran a line down the filler tube and it was clear then ran it from the rubber connector into the tank and felt perhaps something was there not real sure. but the vapor tube was not checked and it was connected. the rubber hose on the rear of the tank has the cap that has a sort of blunt point x design as does the cap on the canister... should not the line coming from the tank to the canister go into the canister and then out the other hole up to the engine... seems odd that there is only one line going into the canister and a cap/vent? on the other hole. the van has been sitting for years i guess i need to re look at the rubber hose coming off the tank that cap/vent was the same amount of dirt as the rubber hose. should i run a line up that to make sure there is not a spider nest in there and is that tube a clear shot into the tank?
I did not realize that it had been setting for so long, it is possible that the check valve in the top of the tank is no longer functioning, you will need to remove the fuel tank to check it. Might be a good idea to replace all of the smaller rubber hoses at that time just to eliminate any problems. The vapor system on that year was not very complex it just needed a vacuum supply to function. Do you know if the van was in a Rescue service sometime in its life time?
check out ford site. my research says it's a faulty carbon canister that causes fueling problems i.e. pump shutting off while fueling.
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