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Discussion Starter #1
My '99 9-3 2.0 turbo smokes so bad you would think it is on fire, its not black smoke so its not a fuel problem. It is lighter in color so i believe it is burning oil or antifreeze. I just changed the turbo myself because it was whining loudly and i was hoping this had something to do with the problem and would solve it but when i buttoned it all back up and started it, it still smoked just as bad. Does anyone know some easy checks i can do myself to diagnose this so i can keep a trip to the shop as the last resort?
 

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You simply bought a bad turbo or installed the new unit incorrectly. Was that a turbo you got on ebay or something?
 

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Question 3 - what is your coolant consumption ?

And what is the smoke color, maybe have a man help you on this one..
 

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Discussion Starter #5
its not the turbo, i did get it off ebay but it was professionally rebuilt everything was tight, there was no play in the vane and all blades were replaced and i installed it correctly. I think there is an internal engine problem like rings or worn cylinder walls so on... but i just wanted to know if any saab specialist out there might now some little 10 dollar valve or any kind of simple fix that could cause it to burn heavy oil before i get involved with the internal engine or compression testing.
 

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There is nothing difficult about the compression test nor determining coolant consumption, that I know of..:cheesy: These should have been done before going into the $500 to $900 turbocharger...
 

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Discussion Starter #8
the turbo needed to be replaced anyways the blades inside were destroyed and there was about a half inch of play in the vane i could tell by the whining that it needed to be replaced. I know that compression testing is easy and a tester is cheap but i go to college and i just wanted to check the free stuff first. Im good with a wrench man i dont need the arrogant comments i just wanted some straight advice from someone who really knows a saab
 

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Isolate the problem to know the cause ;)

What are the possibilities?
Was the car smoking before you replaced the turbo?

If yes, then it might be either coolant or oil being burnt. A compression test will help determine that.

If not and this happened only after you replaced the turbo, then it's the turbo. Reputable builders or not defects do exist.

Now.... According to you, the car was smoking before the turbo swap but was it smoking just as bad? Is it worse now, the same or better?

You have to remember that if it was smoking before the turbo swap, then the cat is now full of oil and that needs to burn off. You may have smoke for a few miles still but should start to clear up soon.
 

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Discussion Starter #10
it was smoking before i replaced the turbo just as bad. I did suspect that it could just be burning the oil in the cat once i replaced the turbo. I didnt let it run long enough to burn it all off if that was the case because if it wasnt then i didnt want to harm the engine any further. It looks like the best choice will prob be to just run the compression test. and go from there Thanks bud
 

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No problem bud :cheesy:

I just hope your O2 sensors don't get affected by all that oil. The cat itself may be damaged as well if it has that much oil going in it too.
Good luck :cheesy:
 

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Did the new turbo kill the whining problem? Have you looked at your plugs, or pressure tested the cooling system?
 

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It looks like you've gotten some good replies but I have a few aditional suggestions.

First, you can isolate the turbo as the problem by looking at the butterfly on the TB. If the TB is oily and wet then you are getting oil from the turbo.If not I would look elsewhere. If it's oily, I would remove all air delivery pieces after the turbo and flush them well. Your IC and delivery pipe could have oil in them but I would assume that the air flow from the turbo would clean that out for you after a few miles.

If it were me, I'd pull the valve cover and retorque the head bolts. See if #10 is loose.

As for Ebay turbos... I've had mixed results with them. I bought a T25 and a GT17. The T25 was crap and a waste of my time. The GT17 worked like a charm. I would buy one from the "right seller" again.

Who did you get your's from?
 

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posiive crankcase ventilation valve

sounds like a similar problem i have suffered on my 02 vector 2.0t (175 bhp)
after having all the usual suspects changed/checked. my mechanic changed the positive crankcase ventilation valve (part no 12786376) which has solved the problem.although the part was only £5.00 they are on back order in sweden only after calling 20 plus dealers did i find one in stock hope this may help you or other saab owners out there
 

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I am very skeptical on ebay car parts. I would suggest sending your turbo to Limit Engineering for rebuild. The turbo buick guys swear by them.

That being said, I did have a brand new turbo go south on me a week after dealer installation.:roll:
 

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I too had your same problem...I bought a used turbo from ebay, the old one had a lot of play and smoked very badly. I also replaced the oil line to turbo, did you?? It might be clogged? The car smoked for a few dozen miles. I actually ordered another turbo and the day I was going to change it out the car stoped smoking. Like you said best case scenario there is oil in the cat. My advice is just keep moving it until it clears out.
 

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Did you prime this re-built turbo?
A rebuilt turbo has no lube on the bearings.
Starting it without priming it well-enough can, and will destroy the seals.

otherwise, The best ways to know if a turbo's seals are bad is by a: looking inside the compressor, or wether it's blowing smoke @ idle, or on-boost.
of course... a completely bad turbo will smoke all the time, though.
 

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hkayssi said:
No problem bud :cheesy:

I just hope your O2 sensors don't get affected by all that oil. The cat itself may be damaged as well if it has that much oil going in it too.
Good luck :cheesy:

So if there's smoke coming from the engine, it can damage the O2 sensor?? I just got it replaced, and then the engine smoke happened, and now the CEL says the 02 sensors are failing again.
 

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muffinpost said:
So if there's smoke coming from the engine, it can damage the O2 sensor?? I just got it replaced, and then the engine smoke happened, and now the CEL says the 02 sensors are failing again.
I actually meant it would gunk it with soot and you'd have to clean it.
 
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