on the 97 f150 4.2 just under where the AIC is on the bottom of the intake their is a rubber elbow for vacuum. did not see where the rest of the hard plastic line went. Any ideas as to what this is called or a ford/napa part # ? after chasing down vacuum leak i finally found it the elbow has a huge crack in it. Also when i disconnected it a plastic tube came sliding out of the intake? is that one normal?

 

PCV elbow?

http://www.dormanproducts.com/p-32422-46022.aspx

 

yep that would be the one thanks..