Monthly Archives: October 2012

Turbo Troubleshooting

Okay, I know it’s been ages since I’ve posted, but I will be making a bunch of posts soon making up for it. : )

However, first off I need to post about some troubles I’m having with my turbo so I can go through my trouble shooting steps. Once I find the problem, I’ll post how it was fixed so it will help in future.

But first, the problems…

The above picture is the oil residue I found in the pipe that goes from the air intake tube to the BPV. In order, it goes air box, main intake tube and then turbo air inlet. This pipe comes off the side of the main intake tube. Although blurry, it shows pretty clearly that there is a bit of oil in there. I don’t think this is a good sign.

This shows clearly where the pipe comes from (not so much my explanation above :p ) – in this picture it is detached and sitting near where it joins the main intake tube.

This is also a bit of a grim picture. This is where the main intake tube is connected to the turbo intake pipe. There is a fair bit of oil here as well and I’m starting to think cause for concern. The other end of the pipe (not shown) connected to the air box (filter).

This is the side view of the metal tube that bolts onto the turbo itself. This tube leads to the cold side fan (as opposed to the fan that faces the exhaust). The main intake tube fits on here and it’s pretty obvious to see that there is an oil residue here as well. The bolt in the front of the picture holds the breather tube on which runs to the engine. The connector where it goes to the engine (near the throttle body – ish) has a lot of oil residue on it as well.

This is the view straight down the metal air intake to the turbo. The pipe itself doesn’t seem too messy, but you can see some pretty recent oil on the edge of the pipe there.

This is the panoramic shot. 🙂  From left to right you can pretty clearly see: The metal intake pipe to turbo with oil on the side of it, it bolts to the turbo housing itself which seems to be okay. Moving to the right you can see where the manifold bolts on and then the downpipe – both look okay with no visible leaks – sure, they aren’t gleaming and shiny or anything, but okay. Underneath all of that, you can see the wastegate housing with the lever that opens and shuts it (rusty but working fine). Right down below you can see the blue silicon elbow that takes the turboed air to the intercooler. It’s tight – no leaks there.

Probably not that relevant, but just in case, here is the area around the throttle body with the cover removed. The IAC (I think it’s called?) is on the left there and outwardly seems to be in fine condition. I can clean that, but I don’t think it’s the main cause of the problem. I have also checked that silicon hoses and such are in place – just in case.

And finally this is the under car view looking up at the turbo area. From the top of the picture down (which is left to right on the car) – Blue silicon elbow going to the intercooler. It’s connected to the turbo housing. Next you can see what I think is the oil pipe in to the turbo? Looks a bit crappy… Next is where the turbo cold side fan attached to the other fan and the waste gate, etc – the waste gate lever/actuator is on the right hand side there. And lastly at the bottom you can see where the exhaust bolts on. There’s a lovely white stain there… don’t know what that’s from….

Okay, that’s all the photos for now. I’ll putting it out there to help solve my problems and I’ll see what the diagnosis is. I’ll post later as to what the result was.




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