[antonio777]

Hello, i own a 1990 9000 Cd turbo, and all of a sudden it started making extreme amounts of smoke when driven under acceleration. I thought it was the turbo, because it was makin a weird noise, and i replaced the turbo. but the problem is still there. could anyone tell me what could cause this? i hope its not headgasket.

 

[elcid]

White smoke or black smoke? That'll determine what's burning...

 

[antonio777]

Its white smoke, and a lot of it.

 

[UK9K]

White smoke usually means HG is gone I think. Greyish smoke means rings, especially if it smells oily.

 

[boxman]

what milage has it got, once its hit 130,000 miles i usually means a new head gasket is on the cards and white smoke is usually the sign of a very bad head gasket failier, and if its that bad dont be alarmed if you still get the smoke (steam really) after you have replaced the H/G as the exhaust usually fills with water and has to exaporate before the steam stops

 

[UK9K]

Well, a sure sign of HG failure is, open the oil filler cap, in our case, take out the dip stick, and look at the colour of the end, if it's light browny colour instead of dark brown/black, then the HG has gone, cos the engine oil and the coolant have mixed.

 

[zolf]

Sorry to tell you, but blowing steam equals blowing head gasket. Can you smell the coolant? By the way, you can have a blown HG even if the coolant doesn't mix with the oil, the coolant leaks directly into the combustion chamber.

 

[antonio777]

thanks guys, by the way i looked at the smoke again, and its greyish and does smell like oil, and since my turbo was really broken, and leaking oil, i cheked all the intake hoses, and they were full with oil in them. So could it be just the oil and coolant off the intake pipes that is burning off? because i replaced the turbo.

 

[Turbo 9K]

yes thats possible, drive it longer and see if the smoke goes away and monitor if it is burning any oil.

 

[antonio777]

yes i think so too, because, everything is installed now and my turbo is definatley working cause i have lots of boost, way more then before with my broken one,

but now i have another problem, my radiator from my 90' saab was leaking and i replaced the rad from 95' and i found out that the temperature sensor doesnt go into the same spot as it did in the 90' rad, does anyone know where the temperature sensor is in a 95' model?

 

[antonio777]

yep, drove it for more on quiet roads and the clouds of smoke are gone! it was the faulty tURBO and its left overs, that vere causing the problem,

thanks guys!