Couple of things that really need to checked.
1) Does it have spark?
2) Does it have Fuel Pressure? (hearing the fuel pump run doesn't prove pressure).
If it has both, start suspecting a slipped Timing Chain. Fairly common on that engine with high miles.
PS. Nice, well written question, unusual around here...
Your oil pressure is good, but it won't start. How is this possible?
The timing chain or belt maybe broke from the jolt of going from neutral to 80.
What do you mean by nothing dripping under truck? I see you have listed a lot of things but you don't list if it has spark and what pressures you had when you tested the fuel pump. Just little things that would help.
Computer in fault mode. Try to re-set it by disconnecting battery negative cable for 5 mins. Don't coast on highway. Don't EVER drive semi for a living.
probably needs a recall.
going down the highway 80ish mph going down steep hill put in neutral to then start going back up the hill still at high speed put it back in drive press the gas nothing happened truck must of shut off going down the hill, will crank.. wont start...
batterys got plenty of charge
oil pressures good.
not over heating
*fuel pumps good**. when i turn my key half way i can hear it
nothing dripping under truck
my truck is a 1992 chevy k1500 with 170xxx with 5.7 350
any idea on whats wrong?
