Question about 2008 Volvo S60
Volvo diesel blowing sotty smoke
You have not given much info to go on but check turbo intercooler pipes if you have them, any leak will change the airflow mixture. They can get a bit oily inside and slip off too, happened to me and I thought I had blown the engine till I saw the pipe off.
Secondly clean the mass airflow sensor unit, its the round tube thing near the air filter with a plug on it.
Check the air filter is good. then look for any air leaks from the mass airflow sensor on wards.
Posted on Jul 02, 2009
There are a few things that can cause sooty smoke. Check the are filter and the turbo. If its the turbo then the exhaust pipe after the turbo will have oil in it. If you can give me more info I might be able to help more if this doesn't do it for you.
Posted on May 29, 2009
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Posted on Jan 02, 2017
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