Engine/Transmission (1998.5 - 2002) blue smoke pelase help

[wrichards]

have 2002 24v 121,000 aut0,3500 drw. it is a work truck and it upon start up and throttle pressure pushing lots of blue smoke, smells like oil. replaced turbo and still doing it. codes p 1388,753,1765. When I unsrcew the oil fill while running in do hear a pressure build up, then ones its off I can set the cap on there with no blow by. truck has great power, runs smooth as silk and has had amsoil 15w40 since 50k when I bought it. any ideas??

 

[wrichards]

I just checked the codes which are all transmission related

 

[B.G. Smith]

Sounds like the vent tube may be plugged. It comes off at the front of the timing gear housing. bg