hey!! question....whats is suppose to be in this area where all of this antifreeze is in the picture, or is that regular. what is that long tube thats haniging down inside of my UIM....

Definantely a UIM failure. There is supposed to be nothing there. The tube in the UIM is the PCV tube that carries over from where the PCV valve is located. You are doing your LIM gaskets, right? And I see someone already switched to green coolant.

On the money..

This is a an area of air. Nothing should be there, when you try and remove it.. remember the "secret" hidden bolts in the front driver side and rear passenger side of the manifold. Currently they are submerged.

When you assemble the new UIM, make sure that pcv tube is installed like this one: (Thanks, Arbelac.)



Here'* what it does: (Thanks, agrazela.)


Finally, make sure there is one (not two) o-ring on the bottom of the pcv valve when you install it in the new UIM. A larger o-ring seals the pcv valve chamber.

work with me now you know im a newbie at this...what do you mean one not two o rings? why would i have two?
yeah of course i did my LIM'* too...my shipment of my UIM should be here on thursday so i can finish the whole job....drained my olil today.. yeah yeah i know i should have did it last week but the snow and sleet wouldnt let me...anyway i drained the oil and it was about a quart of antifreeze in it...i switched over to the green stuff because when the problem first started i found myself buying that dex stuff once a week a 15 bucks a pop..i'll have all the pics to post soon for others who want to do it themselves.

He said make sure you DON'T have two. In other words: Make sure there'* only one on the PCV valve and not another one in the UIM. Some people have replaced their PCV valve and have installed the new O-ring on top of the existing O-ring still in the UIM. Kupeesh?

P.*., in the image above, watch part #2 (the PCV "cap"), the little clips that hold the MAP sensor (part #1) like to break off.

Very good alert, logical, but I also had the same question. I should have read it closer. Thank you.

By the way, Bill Buttermore, Thanks for your two photos and explanations {{ (Thanks, Arbelac.) }} Such additional submissions make a considerable difference in a full understanding.