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Smoke When Turbo Kicks In Upon Rapid Accelleration


bagged02

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I just got the oil changed and the guy that worked there said beautiful car, I told him what year it was then he stated he use to work on them at a dealership for 7yrs. I asked him about this issue. before i could finish he said it was the seals. Then he stated the turbo would have to be rebuilt or replaced. he said it would be under 1K. what do you guys think this might run. how long do you think I have. I noticed today the smoke is black not white or blue.

Time left? Who knows. It depends on how fast the turbo get starved. Under 1k? Sounds like a pretty good deal if that includes a new/rebuilt turbo and labor. Mine was like 1.5k I think. <_< Back before I knew what I was doing.

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Time left? Who knows. It depends on how fast the turbo get starved. Under 1k? Sounds like a pretty good deal if that includes a new/rebuilt turbo and labor. Mine was like 1.5k I think. <_< Back before I knew what I was doing.

I may extend the life of the turbo but not engaging it as much, huh? Not driving it as hard?

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I suppose if you don't spool it up it might work. I don't know though. Some one else with more knowledge would have to answer that.

that guy I mention in the above post about volvo repair guy works for a vavoline oil change place. He check around for parts and quoted me 825.00 for a rebuilt turbo parts and labor included. I think I will have the volvo repair shop by my house check it out for the 60.00 charge so he can diagnose it to be sure and then get his price. My buddie that has a cobalt ss says if its black smoke that its running too rich not that anything is wrong with the turbo. he also stated that turbo cars put out some smoke to an extent and this is normal

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Someone please post a photo of a "turbo valve", I've never hoid of one either.

Turbo shaft seals, maybe leaking, but reporting the smoke is black indicates that it is unburned fuel not oil, odds are it is just running to rich when cold, maybe a fault with the temp sensor, or a possible boost leak.

If it is the turbo shaft seals, they often only fail after the turbo oil return pipe cokes up and or is restricted, you might check that. Otherwise a good used turbo can often be found for 150$ or so. 600-650 will buy you a complete low mileage '93+ 940T engine complete with turbo.

Failures with the intake valve stem seals are exceptionally rare. Check your spark plugs for any signs of oil contamination.

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Someone please post a photo of a "turbo valve", I've never hoid of one either.

Turbo shaft seals, maybe leaking, but reporting the smoke is black indicates that it is unburned fuel not oil, odds are it is just running to rich when cold, maybe a fault with the temp sensor, or a possible boost leak.

If it is the turbo shaft seals, they often only fail after the turbo oil return pipe cokes up and or is restricted, you might check that. Otherwise a good used turbo can often be found for 150$ or so. 600-650 will buy you a complete low mileage '93+ 940T engine complete with turbo.

Failures with the intake valve stem seals are exceptionally rare. Check your spark plugs for any signs of oil contamination.

I agree with you. Shaft seals is the correct term. I don't know why I said valve. haha

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gpopshop.com sells rebuild kits for $75. Under a grand for a turbo swap? Hope there's plenty of Vaseline. It's pretty much a no-brainer to re-build a turbo. I would tend to question a diagnosis from a former Volvo tech currently working as a lube jockey. By all means, go to turbobricks.com and learn about your car! And...do we know if the smoke is blue, white or black? Brown? All old turbos use a certain amount of oil, a qt. to 2000 miles is good. The smoke could be white condensation since it's in the morning. Or a seeping head gasket. It might be black because the motor is running rich when cold due to a bad O2 sensor or ecs. If it's brown, it's carbon build up and normal the first time you hit boost if you're not regularly driving hard. Turbos need to be blown out and used. If you grand pa 'em, they'll clog up faster IMHO.

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