Died, cranks but won't start.

I have 94 s 10..4.3 v6. it does the same thing have replaced fuel pump and filter,ignition module,cap rotor plugs wires,coil,ground strap...driving down the road jus dies like the key got shut off....for a while when troubleshooting through the parts you could get it to restart.....now when it dies it cranks really hard when trying to restart..ive checked the timeing its fine....if i wait a few min it will usually start...sometimes it will show a check engine light sometimes not......never know when it will happen sometimes jus down the the road from the house sometimes 100miles down the road......sometimes three times in a mile sometimes not for weeks at a time..Wtf...Im ready to shoot it like a lame horse....its a shame too its a sharp lil truck thats a two owner and never spent a night outside in its life...i knew the original owner ...i bought it with 90,000 on it it only has 148,000 now and still looks like new...

Have you checked the fuel pressure? I think that the fuel pressure is between 55 or 60 pounds. They won't run under 52 pounds.

If the engine cranks but won't start, the battery and starter are out of the picture.
When it won't start, someone will need to check fuel pressure and for spark at the plugs to proceed.

Check the fuel pressure

If it died and won't crank, sounds like you lost power to something.
Does the warning lights come on when you turn the key on ?
Got headlights ?
A mechanic would check for voltage at the starter and work back from there.

Possibly a crankshaft position sensor had the same problem with one of my former vehicles. Be careful buying a new one though it is an electronic part and it is not returnable at most part stores. That is what it sounds like to me though.

Was the cam sensor tested & was it found to be bad?

Was the fuel pump checked out or fuel pressure checked?

Always learn how things work & how to test them

Replace nothing until something fails

No guessing at all,diagnostic testing, if you like
that langauge

Failed Fuel Pump--my guess

Does it crank over and sound starnge? Could be a timing chain.

replace the crank angle sensor and this should cure your problem

My car use to do the same thing. I would be driving down the road and it would die. after 15 min. or so the car would start. I replaced the crank sensor and this solved my problem.