850 1996 Volvo has black smoke coming from exhaust and wants to cut off while driving if this car was carbureted I would be checking the choke

SOURCE: smoke from exhaust

you put 2 many oil in the engine

SOURCE: power loss, black smoke

Hi, the problem you are having is going to be with the turbo you will probably find one of the hoses going to the turbo has either come off or has a split in it.
It can be hard to find the split but this is the most likely cause of the problem.
As the car is losing power at high revs then this indicates that either the turbo itself has failed or it could just mean that their is a split in one of the hoses.

A split hose is the most likely cause you will need to inspect every part of all the hoses connected to the turbo. When these pipes get a split they dont then have the correct pressure for the turbo to work at best running conditions this is the smoke your seeing out the back.

a good way to check this is by the amount of oil in the car if your regular topping it up then this would mean looking deeper into the engine to find out why oil is getting into the cylinders but if you are not topping the oil up then this would mean their is no fault with the engine.

So have a good look around the turbo pipes give them a good squeeze the split might only tiny but that is all it takes to cause the problem your having.

If you are unsure at what to look for then its best left to a garage as they would have a good idea where the fault would most likely be.

Let me know if you need further assistance ok.

SOURCE: black smoke

Black smoke usually means a rich mixture. For some reason the car is getting too much fuel. If the check engine light is on then take it to a shop with a code reader. They can tell you what sensor needs replacing. These newer cars are usually totally computer controled so if a sensor goes bad they will adjust the mixture incorrectly.

raj somaiya

• 2272 Answers
• Posted on May 20, 2010

SOURCE: White smoke coming out of the exhaust when starting the engine?

Its the problem of oil.The oil is getting burned out. The vehicle is either burning oil or it is moisture in the gas chamber if you notice white smoke from the exhaust. This is a common possibility.but in some cases this white smoke is not due to oil burning.In that case   White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Normally this is a sign of a blown head gasket or cracked head. And  this is not a common problem must be repaired immediately. You must STOP driving this vehicle or you will cause serious engine damage. you will have to get both this possibilities checked.
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SOURCE: Suzuki Vitara V6, MAF sensor, white smoke.

i have a simialer problem but i was getting neat fuel out the exhaust as well . i removed the engine because id got a replacement then stripped the old one and as i thought it was a valve timing problem.looking at the engine from the front the cams on the left bank had jumped one tooth out of time so fuel was not being burnt and coming straight through the exhaust.strangely it didnt seem to have a big missfire and idling and smoke got worse when warm.