Please Help!

[jcolomde]

Hi guys,
there is a significant amount of smoke coming from the general area around my turbo, most probably from under. the smoke itself is white, and it smells like something toxic burning heavily. I'm also not holding boost. It peaks at 17.5 and starts to drop fairly quickly. both problems started together.


I have replaced both coolant lines to the turbo, both turbo gaskets, the actual turbo, and I still can't figure out what it is... Please help..

 

[Batmobile_Engage]

Head gasket, coolant leaking onto your up-pipe/collector? Check your oil, sometimes you can tell if it's contaminated with coolant
by the look (maybe cloudy/creamy looking if it's realllllly bad) or smell (smells sweet from the glycol). I'm sure you've checked oil and
coolant levels, just spit balling here...

My first inclination, until I read all the things you said you replaced, was the turbo itself. A couple years ago, when I was still running
the stock snail, my hot side cracked and it wouldn't make more that about 17 lbs. When I replaced it, it was almost impossible to see
the crack and only after removing it did it start visibly leaking oil.

 

[jcolomde]

Head gasket, coolant leaking onto your up-pipe/collector? Check your oil, sometimes you can tell if it's contaminated with coolant
by the look (maybe cloudy/creamy looking if it's realllllly bad) or smell (smells sweet from the glycol). I'm sure you've checked oil and
coolant levels, just spit balling here...

My first inclination, until I read all the things you said you replaced, was the turbo itself. A couple years ago, when I was still running
the stock snail, my hot side cracked and it wouldn't make more that about 17 lbs. When I replaced it, it was almost impossible to see
the crack and only after removing it did it start visibly leaking oil.

I have a weird feeling that it has something to do with the up-pipe. oil is not creamy, coolant levels are fine. the part that really throws me off is the drastic boost leak. I don't what could be causing such a spill and loss of boost at the same time.

 

[Batmobile_Engage]

The only thing that makes sense to me right now might be a head gasket. Though idk how much that would affect boost...

 

[jcolomde]

The only thing that makes sense to me right now might be a head gasket. Though idk how much that would affect boost...

I thought of that too but got stuck on the same predicament. I was told that it may be one the oil lines, and that the loss of oil pressure can cause the lack of boost.?

 

[Batmobile_Engage]

If you lost boost, due to a lack of oil pressure, I'd say that'd be because the bearings weren't being properly lubricated
and rotating resistance is increased. If that's the problem, I'm sure that turbo would have shit the bed already.

 

[jcolomde]

If you lost boost, due to a lack of oil pressure, I'd say that'd be because the bearings weren't being properly lubricated
and rotating resistance is increased. If that's the problem, I'm sure that turbo would have shit the bed already.

interesting. Considering the fact that I swapped the turbo yesterday. and I've only engaged boost twice, could it be that maybe that's problem and the turbo just hasn't died yet?

 

[Batmobile_Engage]

God I hope not. Plus, you said you replaced the oil lines as well. Idk, maybe there is a blockage somewhere in the system.
I can't speak intelligently about oil flow in the STi. Maybe someone else can shed some light.

 

[jcolomde]

God I hope not. Plus, you said you replaced the oil lines as well. Idk, maybe there is a blockage somewhere in the system.
I can't speak intelligently about oil flow in the STi. Maybe someone else can shed some light.

I have't replaced the oil lines, I replaced the coolant lines.

 

[Batmobile_Engage]

Ahhh shit...

 

[Grinder34]

Any updates?