hello people , i have a 2001 dt466e and the thing is i am getting air in my motor some where i have proven there is no coming in the fuel system clear air free right up to fuel rail from there i can not tell but i do know it is coming out the fuel presure regulater out of the return...and it is causing the motor to have no power, bad vibration...what i would like to know is how am i getting so much air???is it coming in threw the injector tip is the ecm leaving the injector open ?? i just put 6 new injectors in on the advice of international... probably just to sell me injectors.. it did nothing i still have air coming out of returnbefore i found the air problem i had almost every thing on motor replaced on the advise of machanics that new nothing... change this change that! then i was the one that found the air... which is the real problem does any one have any idea where the air is comjng from?? i am going broke trying to figure this one out,,, the truck runs so bad i can not drive it any more this is thestrange thing the motor only has 30,000 miles on it any ideas somebody help phil with broken 466e write me at bock.phil@gmail.com