The PCV is very easy to change. You just remove the hose which is connected to it (this will be easier when the engine is warm, since the hose will be more flexible), turn the PCV around 90° counter clockwise until you feel a stop and pull it straight out.
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.