The 4.0 SOHC PCV is on the rear face of the driver side valve cover. It has coolant heater pipe around it. Unscrews 1/3 turn CCW to release it. Removal is not as easy as it sounds. Blame the EPA because they mandate "positive retention".
I just got it from NAPA. Took like 20 min to change. I didnt relize that metel loop has antifreeze in it till i pulled a hose off and got shot...Well ended up just swapping the valve and leaving the orignal pipe thing.
The one i pulled was VERY greasy and gunked up. Glad i changed it. Put still couldnt get the fuel filter changed, even with the tool...oh well try later...
okay, good to know for next time. i changed the fuel filter too, finally got it off. I couldnt get 2 hoses off with the quick realse tool. Took some pliers and squeezed the ends and the popped right off.
ive got a 99 xlt and cannot find the damn8 thing. Apparently it was disconnected. After i failed the smog the mechanic told me it was unplugged. Do you think that could be why i failed. the codes were egr and system too lean bank 1