5.4L 3v engine: The PCV is located in the drivers side valve cover. Tried to pull it out with no success and came to the conclusion that maybe it's threaded and a nut locks it in from the underside of the valve cover. Can this thing be replaced without taking off the valve cover? Thank you.

 

According to the Ford dealer no. It's built into the valve cover and the cover has to be replaced to replace the PCV valve. The cost is approximately $150. I have an '07 F-150 with the 5.4.

 

What a brilliant design. Definately not the generation that went to the moon.

 

Most of the 'parts' on these trucks are 'assemblies' that is smart for ford. Make you buy the whole thing to repair a 20$ part. Less parts for them to inventory, easy for their techs too, just replace the whole assembly.

 

Change your oil regularly and you will never have a problem with it. Then you save $20 for every time you would have changed your pcv valve. And just an FYI the moon landing was fake!