P/S ticking noise?
 

I have a 2000 f-150 lariat 4x4 with the 5.4L I hear a ticking on the passanger side of the truck and it seems not as load once the enginge is warm is this the splash baffle on that p/s valve cover where the pcv valve goes in is ticking? My brothers '99 does the same thing and is also a 5.4. Thanks for your help.