I have a 1993 ford 7.3 idi. fuel prob

when this happens oes it start again then in a couple of minutes it dies again if so you either have a dead spot in your throttle position sensor which is worn section of contact inside the sensor from always being there in that position while driving or the idle air control vavle is no good and once the engine gets warm enough the valves internal contacts spread and break contact ex solder inside has corroded and a bad joint exist and when temperature increases metal expands and the electrical path can no longer arc because the gap is to big so it cuts out the best way to check is start the vehicle overnight cold if you can rev the engine multiple times then the throttle position sensor is good if not thats it try both in park and drive if you can constantly raise the rpms then your idle air contol is bad but the best way is to check the TPS with a meter across the contacts if voltage disappears then comes back the throttle position sensor is no good

can be a multiple of reasons -will start with check for fuel pressure -possible fuel pump/fuel filter ---in need of a tune up ---egr valve --cat converter--battery - these components sometimes dont set off a check engine code but if you did or do have a code have it scanned most auto stores offer this service for free

prime it,
Fuel Priming Ford F250 F350 7 3L Powerstroke Diesel
Ford IDI Diesel Starting problems Diagnosis

this sometimes occurs with age due to egr and intake becoming carbon filled , inturn requireing more vacuum inturn raising rpm to keep up , check all vac lines for poss leaks this will cause prob , to check for leaks crank engine let idle use can of wd40 or starting fluid and spray lightly around suspected area , if rpms raise when u spray then u have found ur leak

well want to help is plowing any smoke whit or black if so let me know witch some time a bad thermostat can do this it will mess with sensor it could be fuel psi have you checked or replaced all filters is this truck bio fuel if so the line can Cristal up a little sea foam can help can find at local parts store put it in the tank and will clean fuel injectors and lines hope this helps make sh ere air filter is clean and some time throttle position sensor can do this hope this helps

i would check the fuel filter.

Hello:;
This sounds like a fuel problem at the carb. What it's doing is termened hunting a nd can generally be corrected by a simple adjustment of the carb. Engine at idle and neutral set rpms at lowest idle , around 640 rpms. then adjust the a/f ratio screws to balance carb. Screw both screws all the way in, do not force ,or needle and sear damage will occir. Now back each out to 1.5 turns That is your start point Adjust one screw in and out slowly until you you feel its best effact on ide whicjh should slightly increase. repeat with other screw, in and out slowly . listening to the engine idle. if idle has increase due to your adjustmebt, repwat process after lowering the idle speed again with the idle screw. When you get to the point the screws no longer affect the idle the engine show sound and run smoothly at idle, make sure you resert the idle to 650rpms for an automatic trans and 650-750 for manual trans. I hoped this helped- good luck.. If it still does it, the carb may nrrd the float checked and st.

1993 s-10 should have a 4.3 engine. Your symptoms tell me your throttle body injector is clogged, and only allows so much fuel to pass through it. Therefore, on a idle there is not enough fuel coming through to keep the engine running, or to start it. If you replace the throttle body injector your issue should cease.

I hope this information helps you, and I wish you luck on your repair.

try looking into the starter solinoid thingy

The throttle position sensor could cause this problem.They are usually easy to replace.