Should this hose be attached??
 

I was in the process of replacing some of my rubber vacuum hoses w/ silicon ones and noticed this one hose not attached to anything on one end

http://i42.photobucket.com/albums/e3...s/IMG_4166.jpg

It's the one in the middle here. It looked to me like it should attach to the Air intake as there was a nipple there on the underside of the hose after the MAF sensor.... Looks like it would fit this hose. Anyone know if this should be attached?

Here's a pic of the underside of the intake hose.

http://i42.photobucket.com/albums/e3...s/IMG_4163.jpg

Thanks

RE: Should this hose be attached??
 

I believe thats where it should go.

Becareful using the silicon hoses I have seen them be soft and collapse.

RE: Should this hose be attached??
 

Thanks for the help... hooked it back up w/ ziptie goodness and the car seems to run so much better. I used to get a loud whistle type noise right for about 1-2 seconds after the car was first started but no more.

Something strange has happened a couple times that i haven't noticed before when putting the pedal to the floor. It's only happened maybe 25% of the time, but when i do this, the turbo kicks in and everything is great. But all of a sudden it's like the turbo or something just stops. There is absolutely no accelaration for about a second or 2. Kind of like what would happen when you hit a governor for top speed. Not sure if this is from the turbo, or the fuel cutting off or what....

Any ideas?

RE: Should this hose be attached??
 

Did you replace all 3 hose going to the turbo?

RE: Should this hose be attached??
 

I replaced the one on the top line (easiest to get to... it ran from near the turbo to the intake manifold ...the smaller line...not the one going underneath the airbox).

I ran out of tubing partially through which i hope to remedy shortly.

RE: Should this hose be attached??
 

One may be cracked and leaking.
That will cause it to go into Overboost.

RE: Should this hose be attached??
 

Overboost? Sounds like fun, but prolly not the best for the turbo i'd imagine. When it cuts out like that is that a way of trying to protect the turbo?

I think i'm going to replace the last 2 hopefully in the near future. Is there anything else i should consider fixing or checking out while i'm doing that? Figure if i'm working around the turbo i should explore a little.

I seem to be loosing oil, and i have noticed a decent amount in the intake hoses before the throttle body. I cleaned it all out when i replaced the PCV system, but less than 1000 miles later it's oily again.

RE: Should this hose be attached??
 

Yes that is how the turbo protects itself.
Is the turbo return line leaking?

You will always see a little oil in the tubes.

If you look closely at the bottom of your intercooler there is a small drain hole for the oil to drain out of.

RE: Should this hose be attached??
 

I haven't really looked at the turbo all that closely yet. May try to do it this weekend as i'll have access to a hoist.

Is it easier to access the return line from the top or bottom of the turbo?

RE: Should this hose be attached??
 

The turbo return line is easy to get to from the bottom. You can't miss it its a big pipe that goes into the block about half way down the engine.

It might also be easy to replace one of the vaccum lines from the bottom as well.