2001 F150 5.4 smoking sometimes??

I have got a 01 F150 with the 5.4 that is smoking sometimes on start up and does not seem to matter when cold or hot. It does not do it all the time. Intemitently it does this. Truck has 86K on it. Does it have a PVC valve that could be sticking? Not sure where it is located. No check engine light.

Has anyone else seen this:banghead:

You probably have valve seals leaking unless you are losing anti freeze.