I posted a while back on a problem with the truck idling fine then stumbling like crazy then corrects itself and all is fine until the truck cools down. it's a 5.2 97. No codes come up at all, I reset the computer (pull bat cables off) and it ran great for a week or so then came back, still no codes. I reset it again and that fixes it for a time.
A short time ago I replace the throttle position-er and idle motor not for this reason I had another problem. I did not do cap and wires yet caus I don't think they are causing the problem, remember it fixes it self.
I cant for the life of me figure this out. Should I just bring it to someone? are there better diagnostic computers out there that can find this?

thanks