Quote Originally Posted by nae28 View Post

BUT, after doing all this, we noticed the "mystery hose" has this oily, chunky sludge mixed with what looks like vasoline coming out of it and into the valve cover!!! This concerns me, we have checked the oil and it doesnt appear there are any other fluids or substances in there other than oil. This "mystery hose" is located on the valve cover to this L-shaped piece and is right next to the ignition coil, it appears to lead somewhere under the intake system. I even went to the dealership and they couldnt tell me what the hose was or where it connected to. Basically, I would really like to know what the hell this hose is for & why it would be filled with that chunky sludge.

PLEASE HELP!
This hose connects to the bottom of the block. It was on the 04/05 engine but was gone starting in 2006. You can see where it connects to the block in the first picture in the third post down in this thread. The hose is disconnected but it is the black flange area. I think it is a breather but can't tell you much more than that.

http://www.aveoforum.com/forum/f103/...91/index4.html