I've been googling til I'm google eyed !! Driving home yesterday and everything was fine, stopped at a red light and when I took off and transmission shifted into 3rd gear felt like I was pulling a train. Reverse works fine as does 1st and 2nd. From what I hjave read its probabaly a stuck valve in valve body. Does anyone have the diagram to show me the culprit. I'm very mechanicaly inclined but am open to any and all opinions and advice. Truck is an 01 F 350 dually.
thank you
Jimmybobby