With the engine off, fuel pump relay out, turn key to ON. Do/did you hear the fuel pump?

From my understanding the computer gets signal from crank sensor, then tells the auto shutdown relay to engage and that tells the fuel pump relay to engage.
Could there be any bolts or broken mounts on engine or transmission?
If it was something bogging down the engine when turning the wheels it should have done it while being parked turning steering wheel from far left to far right. The engine and transmission should be lined up even if there were broken mounts but you never know.

There could be a sensor, low oil or trans fluid, that when is motion is seeing something that could hurt the engine or trans. That sensor could send a kill signal to the computer. And the sensor is only set when the fluid moves away on the left turn. You could try pushing from one side up and down to see or maybe raise the left side with a jack while engine is running.


Kilgore

 

With the fuel pump relay out and the key on, I could not hear the fuel pump. But, for some reason, it would still crank and maintained around 5-10psi while running. Not enough to do anything other than idle very rough.

Is the crank sensor the one in the distributer, under the rotor?

I have not checked mounting bolts...it hadn't occured to me.

I had not thought about raising the left side of the truck to see if it stalls. Your idea fits in my thought process of why it takes a few minutes to "rest" before it will start after stalling. The sensor would be set when the fluid moves away and it needs time for the fluid to move back before it will allow the engine to restart. I will try to find a bank/slope to park it on to see what happens.

 

Just took a look at a starting diagram for you truck.

The only thing that I could see to fit your situation of not starting as far as sensors or switches go would be a

1. Park/neutral position switch
2. Automatic transmission solenoid and pressure switch assembly
3. Park neutral switch sensor

Does your truck have an anti-theft system? Could be something with that?
Saw on the anti-theft system diagram that it interacts with the transmission.


My son's car had an issue with his anti-theft system. We removed the fuse for it and the horn relay. That allowed him to start his car 99 honda without having to jump through hoops.

After turning left, the truck dies, truck doesn't start right away, try to put it in neutral and start it to see what it does. couldn't hurt.

 

When the truck stalls, I have tried starting it in neutral and park, and I have also tried turning the steering wheel all the way right. Neither helped.

After 2-3 minutes of either constantly trying the starter or just letting the truck sit, it will crank like nothing happened. What I don't know is what is happening during that 2-3 minutes that will suddenly allow it to crank.

I discovered something new this morning...it will stall in neutral. It has been regularly stalling each morning as I turn hard left before backing into my parking spot at work. This morning, I shifted into neutral before I started my left turn and it still stalled. I would never claim to be a mechanic, but I would think that this eliminates the transmission/torque converter as possible reasons for the stalling.

Yesterday, I switched the ASD relay with the Intermittent wiper relay and have not seen any change.

Also yesterday, I drove it into a ditch (on purpose) that made the left side around 12-15 inches higher than the right side. By doing this, I was trying to mimic the force that the truck feels as it turns hard left. Maybe the force of the turn was moving a wire to a short or moving fluid away from or toward a sensor. But, the truck idled fine.

Killer, I appreciate you bringing this thread back up and continueing to throw ideas at me. I will keep posting when I try something new.

 

Another piece to the puzzle...rain.

Tonight on the way home it was raining very hard in places. The truck would choke out every time there was heavy rain. A couple of times it even stalled. I thought I noticed it the other day when it was raining, by chaulked it up to my imagination.

If it is not raining tomorrow, I will try using the hose on the engine to see if I can isolate the problem. Maybe distributer cap, maybe coil...

 

Oil Pressure I believe is the only sensor that can send a kill command. It would also throw a code.

What's the gauge do on a left turn?

Mentioning rain related, there are 4 items that are susceptible to rain:

Oil Pressure Sender (right next to distributor)
Distributor
Cam sensor (inside distributor)
Crank Position Sensor (Behind passenger side cylinder head)

Grab your water hose, put it on soaker (or no end at all), and start spraying the bottom of the windshield/cowl. Sweep from left to right.

 

I ran the hose across the back of the engine where the distributer cap is and nothing happened. When I was takingthe hose out, some water splashed on the ignition coil and it stalled instantly.

It would not start up right away, so I let it dry for a little while. After I got it started again, I poured probably 2-3 tablepoons of water on the coil and it stalled instantly.

Should my ignition coil be this sensitive to water. It seems that more water would splash up off the road when it is raining than what I poured on it.

I still can't figure out how that would relate to turning left.

I am on my way to Advance Auto..

 

A bad coil how weird it must have a poor contact inside of it and a crack in the case is my guess or a terminal is almost corroded off.

Replace and see what happens they are cheap around $15 to $55 depending were you get it AutoZone

If it has a bad terminal that could explain the turn thing as you turn the engine pulls to one side oh so much and may pull the bad terminal just enough to disconnect it.

Did you check the coil cap and rotor

 

The coil had a crack at the base of the terminal. The terminal was bent towards the rear of the car almost as if it has been in a wreck at some point in its life and something impacted it pretty hard.

I replaced it and it is no longer affected by water, but I did not have a chance yesterday to test drive it. I will do the today.

No, I have not had the distributer cap off. That, and pulling a spark plug for inspection, is where I will probably go next.

 

I would do like everyone does when they get a used auto a tune up and an inspection of everything if you had done this this problem could have been avoided.

Check all oil levels or just replace all oils even your differential these are all must do for a used auto steam clean the engine bay check your S- belt and power steering fluids look for any problems just do a good inspection of the auto.

Pull the rear brakes and inspect them for wear and check the front pads to see how thick they are they may be at end of life time and very easy to replace.

Check the engine cooling system or just replace the coolant flush the system maybe even pull the thermostat and replace it to be sure remember to back flush the heater core.