What is held down by this intake manifold bolt?

Kenwood

New Member
Joined
Jul 26, 2019
Messages
9
Location
Jacksonville, Florida
Anyone with a 4.0 2006 TJ or LJ Unlimited Rubicon know what exactly is held down by this bolt on top of the intake manifold? It has to serve a purpose. For the life of me, I cannot remember what I unbolted from it.
20191201_114949.jpg
 
My 2006 non-Rubicon Unlimited doesn't have anything in that hole but threads.
 
  • Like
Reactions: Kenwood