Yes I have reset the PCM several times and that doesnt help. OK so last night I spent about an hour looking for vacuum leaks and could not find anything, I guess I'm going to try to hook up a gage and check intake manifold vacum like that, does anyone know how to this? and what kind of reading I should be getting? thanks in advance I just want to make sure I dont start replacing gaskets if thats not what is wrong. Also I dont know if this makes a difference but I noticed yesterday that when I turn the ac on the looping goes away and the truck iddles normal.

 

Intake manifold vac will (normally) be in the 18-22ish range. I'd bet 10 different trucks would give you 10 different readings. Suffice to say, though, that if you got a reading of <15, you have a leak somewhere.
It's possible the a/c put enough of a load on the engine to smooth it out.
WC

 

i had the surging idle issue as well but a new tps fixed mine. hope you find out whats causing it. Mine was pissing me off

 

Checked the cat? Dont know why it would cause idle issues, but it would cause it to be sluggish and such.....