Car ran fine one day, not it will crank but not

It could be the T.F.I. MODULE / IGNITION MODULE its located on your DIZZY. I've bought these brand NEW and had them not work. There are a known issue with these late model Fords.

Not sure if you fixed your stall issues but....have you looked at the pip signal on your fox mustang? My 1987 mustang gt was doing the same thing it got to the point where the car failed to start. It was the pip sensor located in the distributor. I removed the distributor and took out the pip sensor replaced it with a oem replacement re-timed the car its ran great since. I also went to the boneyard and grabbed a few tfi and installed one on my distributor most mechanics suggest you do this when you replace the pip sensor. Hope this helps someone dealing with this issue on there 87-95 mustang gt. Took me about 45 minutes

You ran the car out gas and there's air in the system.. Not the Throttle Body.. Expel the air from the system.. 1. Raise/Support your hood.. 2. Turn your key to the ign position, (listen for the fuel pump to come on).. 3. Go to the fuel rail(s) and press the Schrader Valve, (looks like a tire air valve), until only fuel comes out.. (use safety gear, especially for eyes) 4. Rinse/Collect excess fuel before cranking (careful around electrical connections)

Is the fuel pump getting voltage and ground ?
Are you getting spark at the plugs ?
Could be a crank sensor or relay among other things.

check for spark to the plugs and check for fuel at the fuel rail

Altenator

Check transmission fluid level and add if necessary.

make sure the memory wire is connected straight to battery and or the fuses

you have answered you own question bruv change remove the fuel pump and inspect

Are you sure its not an engine overheating issue Maybe have a faulty eng temp sensor.Sounds like engine is tightening up Considering what youve replaced ICan you check power supply to starter when its tight?