I discovered that the hose leading from the EEC nipple of the tank was cranked and leaking gas from the tank after I filled up one night. It drove home fine, but then died in the driveway as if it was out of gas. I changed all of the hoses on the tank itself, but the truck still won't start. It acts like it wants to start, but just can't keep running. Does anyone know what I should do at this point?

This is my first time posting on the site, so I apologize if my question is unclear. I recently changed the carburetor (3 diaphragms), distributor, spark plugs, plug wires, distributor and cap, coil, alternator, fuel pump, and fuel filter. After all of this, the truck was running good; but then

 

Welcome to FTE and the Bumpside Kingdom!
EEC? Electronic Engine Control?
Check to see if there is any gas in the carb. Manually move the throttle back and forth while you are looking down the throat of the carb. If the accelerator pump nozzle(s) is/are squirting gas there is gas in the carb. If not then back track down the fuel system. Fuel filter plugged, fuel pump, wrong size of rubber hose used and not sealing to metal tubes, etc.

 

Thanks for the advice! I'm not sure what the EEC stands for. I just know it has something to do with the emissions and runs to a carbon filter next to the alternator. I am going to give this a shot, and I'll post what I find.

 

You won't find any vehicle prior to 1979 with EEC, and the only 1979's to have it are LTD/Grand Marquis with 351W

EEC = Electronic Engine Control aka on board computer.

Some 1970/72 F100's have the Evaporative Emission System (abbrev: Evap/Em) that some people that are unaware, assume is abbreviated EEC, but it's obviously not.

Evap/Em has fuel vapor line(s) routing along the right inner frame rail to a round charcoal canister located under the hood.

Here's a pic of 1971/72 F100's with in-cab fuel tank and Evap/Em.