Hi,
    I am not quite sure if I have a problem. I am the 3rd owner of this van
and I think I have come across some kind of shade tree mechanics solution for
who knows what. There is a hole approx. .5" x .5" square punched through the
top of the cap on the engine breather at the back of the engine. When the
engine is running puffs of air are coming out of the hole. I covered the hole
with my finger and the tempo of the engine seemed to change. Is this hole
supposed to be there? Any idea why somebody would punch a hole into this
thing?
    Thanks for any assistance,
                                Jeff in Minnesota