What happened when you put gas in the tank, did it restart or not...?
Explain what happens when you turn the key to RUN/START, nothing happens, does it crank over but not fire up....not crankover.....?
Check everything and see if you find anything out of the ordinary....if your Carbed then check the power valve inside at the metering block especially if it's back fired, float level, air/fuel mixture and fast/standing idle.....mechanical fuel pump up front on the dr side of the engine has a rubber diaphram inside maybe you losing fuel pressure up to the carb.
If the fuel lines were disconnected you definately know it, fuel would piss everywhere, dirty fuel filters won't prevent an engine from starting unless the system was fouled either by water or mud from Off Roading, a disconnected, broken vaccum line won't prevent the engine from starting vacuum only create poor performance.
If the BKO is EFI you need to use the self test connectors usually located over on the right inside fender liner off the harness and "pull fault codes" from the vehicle computer in order to get an initial diagnosis...www.oldfuelinjection
has fault codes with explanations FREE, FSB member owned but it requires either an OBD-I or II Ford Code Reader/Book, $29.99 at most auto stores or internet OR use a paer clip and "pulse codes".
There are any number of additonal reasonsmif EFI, faulty fuel pump relay, failing fuel pump forward or in the gas tank, FPR = fuel pressure regulator located on top of the fuel rail towards the back with poor psi, is the single ignition wire securely on the fender mounted "starter relay" stud, ECT sensor = engine cooling temp sensor located in the lower intake manifold has any elec. issues this can prevent the engine from starting, bad ignition coil, failing ignition module, especially a TFI = thick film integrated style located directly on the front of the distributor...PIP sensor = profile igntion pickup sensor located on the distributor shaft inside.
What condition is the battery in....put an 850CCA battery on your wish list and the BKO will thank you everyday, Costco $81.00 out the door but worth every penny IMO.
* Last but not least for AOD transmissions, is the column shift linkage in sync with the transmission, do you have to lift the column shifter to start or get a code 67 AC circut failure or NSS issue....?
There's a simple adjustment procedure in the Haynes Repair Manual under the transmission section, Ref.Illus. "Point A" on how to correct this, takes less then 5 minutes.
FSB member El Kabong's ~ baba loohey's favoruite links and questions
FSB member Seattle FSB's ~ post and threads "started" under his name
FSB memebr Steve83's ~ tech album, a click on his black Bronco takes you to it.
Good Luck ~