Ive searched and havent found a hole lot but i know this has been asked before. My trans on long trips after like 25-30 min at 75mph will surge a little like it slips but still keeps speed and then will do right back to normal and be fine for a ways and do it again. I just had the trans rebuilt around 10k miles ago. So i hope my TC is not fried again, i thought i read TPS could cause it. Should i change the fluid(to see if TC is in the bottom of the pan again) and replace TPS ?

 

i would say it's the tps

 

For me it was the TPS. My TC would completely unlock and scare the hell out of me, then lock again. Changed TPS, problem went away.

 

where did you guys get your TPS from and how much were they ?

 

any local auto parts store. about $40-50. drivers side of throttle body, 2 #25 torx and an electrical connector.

 

ya my truck was running rough and i took it out and cleaned it once so i can get it out