97 f250 cutting off

[jimbob123]

my 97 ford f250psd fuel filter light will come on then the truck will cut off. i haved changed the filter, fuel pump, cleaned the tank blew out the lines same thing start the truck runs in the yard 30 mins get in the truck go down the road as soon as it is under a load the filter light will come on and the truck will cut off the filter housing will have lots of air pressure but no fuel. any ideas? does anyone have the diagram for the fuel system? what do the small lines coming off the back of the fuel pump do?

Thanks
James

[hangnail]

you might have a bad injection pump. same thing happened to mine when i bought it, drove fine around town, but the fuel filter light would flicker. once it got under a load, like trying to get on the highway, it quit and wouldn't start. turns out that the injection pump had a crack in it, and was suckin in air. the bad news was that the previos owner had just put it in with 10,000 miles, but the good news for me was he bit the bullet and put a new one in for me.

[Pro-Fab]

There are no injector pump on the 97's just a lift pump. it deffinately sounds like you sucking air though. I would check all lines. There is the feed and return line on the Drivers side that have the quick disconnect fuel fittings take these apart clean them and inspect them. also check all your connections in the valley.

[SMKSTAX]

Check the screen between your fuel bowl and the fuel header/fpr they tend to gunk up.
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