It was very useful to compare the ventilation of Jeep 2002 and 2005 3.7L (it has similutudes with the same Powertech 4.7L engine), although I still had doubts with the direction of the CCV 'Crankcase Breather' in some manuals appears with the head up and with others down (3.7 and 4.7 sell them in a different direction, being the only difference 3 inches more of hose).