Originally Posted by SWGA Boater
I looked at alot of pictures on the web and its seems most Ford engine have a breathable oil fill cap. I will replace the nonbreathable cap with a breathable cap also.
Thanks all for the quick suggestions!
I have had engines with both caps. Can't say that I know the difference as long as there is one there......works for me....best I recall. my last several have been solid caps....
You can check your PC valve by shaking it. If it rattles, it's (theoretically) good.