just for grins where is the voltage regulator?? and where can i get a new one??? i looked at autozone.com and oreillysauto.com as well... and found nothing.

 

i think its in the alternator it controls the voltage so it doesnt over charge the battery

 

if its not then its probably in the wiring from the alternator to the battery

 

ok t.y

 

not a problem

 

The stripped screw on the IAC could be the source of your problems.
You shouldn't twist/push/pull the pintle on the IAC, that little motor is sensitive and breaks easily (the threads strip out easily).
The sensor on the front of the throttle body is the MAP sensor.
The voltage should be 0 with the key off, 12 with the key on and 14ish with the engine running (all the time). If the voltage drops from time to time, then the alternator might be on its way out.
These trucks have some off the wall symptoms when the battery isn't putting out the correct voltage. you say there was no corrosion, but was there a glaze on the terminals? You should clean the terminals/posts with a wire brush (or gently scrape them with a pocket knife if you don't have a brush).

The ASD relay doesn't always fry completely. When mine was messing up, I had to hit the gas to keep it running and after a few minutes of messing with it, the engine would smooth out and would run fine for a little while.
The ASD relay is connected to quite a few different things and the name is a good description, when that thing is faulty it will automatically shut the truck down.
You can get a new relay at the parts store for less than 10$, but for a quick test you can swap a good relay from a non-essential system (horn/fog lights) into the ASD relays slot and see if your problem is still happening.

 

its the mount srew. and it is still tight... no way to get it out. i would try to tap it out but i dont wana mess up the throttle body...

 

So there is no gap on the side with the broken screw, between the IAC and the throttle body?