06 5.9 tranny issues
 

Hey all! I have issues.... I got me a 06 mega cab with 5.9 had to do main seal due to previose problem with fuel in oil( ill get to that in a bit) all went good replaced seal put truck back together and went to start truck runs great no leaks.... Now i put in rev or drive and turbo starts to go and rpm increase like accell on own ... So i shut it down check fluids all good fired up put in reverse and backed out of yard.... Might fast may i say then when went to put in park high rev and out drive ok then i hit lights and u can feel truck shifting sitting there .... Why??? Then i go to take off and its like im in second or really boggs.... If i put to 1st. Manually then shift up im fine .... Drove 5 km and had tranny flush done didnt help .... Now 210 km since and all i smell isntranny fluid a but no leaks i check fluid she almost like a coffee with cream not even a hint of red.... Help this tranny was fine before and cost a mint to build a couple years back with a flush every year