My 6.2 has been starting hard after sitting a few hours lately, requiring full throttle etc classic air in the fuel symptoms. The throttle shaft is slightly damp, but it always has been since I bought the truck so I never worried about it, and it hasn't gotten any worse. The rubber line from the FFM to the IP is leaking pretty bad though from what little I can see with the intake on, does anyone know what size it is? I have seen either 3/8, 5/16, and 1/4 from my searching. Also, what size is the hose to the brass "T" valve? I put a hole in that from merely moving it when I first bought the truck so I know its time to replace whatever rubber lines I can.