Change PCV valves and are located on the lids of valves, when they are bad, so the car smokes just as you write. Here is a picture, price cca 20usd, replacing time: 5min does easy!!!!
You have a n62 engine and the valve guide seals have failed if your crankcase vent valves fail you will throw a check engine light for lean fuel mixture this is a known issue with this engine you can listen to these other people and throw money away but id save it repair isnt cheep and i have had valve guide seals replaced only to replace the heads shortly after to fix proble for good
It is the sensor that needs to be replaced. You need to bring it to the dealership for repair. It would not cost more than $1000.00.
Blue smoke = burning oil. bad valves, bad valve guides, bad piston rings. Bring lot of money to dealer to fix....or just drive down to the gulf and get some of that oil floating around....you'll need some.
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Lite blue smoke and a gas smell comming from tail pipe
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