While im driving down the road the engine will die

sell it to highest bider

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...

your timing is off in the injectors i believe, easy fix for a mechanic

Check the crankshaft position sensor. Old oil (infrequently changed) can foul them up. The sensor has to "see" certain points on the crankshaft. Dirty or bad oil can prevent the "seeing" from occuring. You can turn the key all you want, it will crank but never start. Sometimes, when the sludge settles, it will run again. If this solves your problem, you seriously need an engine flush and then frequently change your oil. Clean oil is more importaint than most people realize. hope this helps.

Have fuel pressure tested when it happens if you can, or take it to shop, let it run on a hot day, then check it. May be a fuel pump on it's way out.

replace crank sensor!

Fuel Pump

hi,i read your problem,for my opinion,maybe camshaft or crankshaft are the possible causes,to make sure, you have to bring the unit to authorized workshop to avoid guessing which part are defective

Fuel pump

try changing the coil- sometimes they get hot and break down- once they cool off vehicle will start and run until they get hot again