Do you have to take the plenum off on the 1996 f150 to get the crankcase breather cap off? There is a cap in passenger side valve cover under plenum with hose that goes to PCV valve. I think it may be leaking air at grommet giving me a P0174 lean code and check engine light. Thanks for any help.

 

What motor are you playing with?

 

Being handled here:

https://www.ford-trucks.com/forums/1...m-removal.html