Will bad ccv valve let oil into cylinder?

I'm getting smoke on start up and it smelled like oil, so I checked my levels and I am losing oil. I also checked my spark plugs in cylinders 1, 2, and 3 and they had a little bit of oil on them. Could this be a bad ccv valve or valve seals? Anyone have a clue? I am getting codes P0171, and P0174, lean in bank 1 and bank 2. When I first start it up it also has a bit of a rough idle. PLEASE HELP!!!!

See this good description to answer your question:

http://forum.e46fanatics.com/showpos...7&postcount=20

If it is the crankcase vent valve/oil separator gone bad, you should have got an audible indication a month or two back when shutting the X3 off.
Sort of like a fog horn.

If so, you may be running short of time to get it fixed.

Check the underside of the oil filler cap for signs of water mixed with oil - the mayonnaise look.
That can be a clincher.

A good shop can probably check the condition of the hoses from underneath without having to disassemble anything and then give you a quote.

Originally Posted by hale2thevictor

I'm getting smoke on start up and it smelled like oil, so I checked my levels and I am losing oil. I also checked my spark plugs in cylinders 1, 2, and 3 and they had a little bit of oil on them. Could this be a bad ccv valve or valve seals? Anyone have a clue? I am getting codes P0171, and P0174, lean in bank 1 and bank 2. When I first start it up it also has a bit of a rough idle. PLEASE HELP!!!!

Originally Posted by Supercourse

... Check the underside of the oil filler cap for signs of water mixed with oil - the mayonnaise look.
That can be a clincher...

If it's white smoke, "Supercourse" may be on the right track: your head gasket may be leaking.

It's a bluish white smoke and I am getting ticking every once and a while. I thought that if the head gasket was bad it would leak oil on the out side of the engine.

Originally Posted by hale2thevictor

It's a bluish white smoke and I am getting ticking every once and a while. I thought that if the head gasket was bad it would leak oil on the out side of the engine.

Not necessarily. The symptoms will depend on where the gasket has failed; it could leak fluids into the cylinder as well.

Bluish smoke is more indicative of oil leaking into the combustion chamber(s); the ticking noise may be related to a bad head gasket allowing the coolant and oil to intermix; or insufficient lubrication of the lifters for other reasons.

Now the smoke is gone but I'm getting a decompression sound when I turn the car off, any ideas? It sounds like a car with a turbo blow off valve when it happens. ????

Originally Posted by hale2thevictor

Now the smoke is gone but I'm getting a decompression sound when I turn the car off, any ideas? It sounds like a car with a turbo blow off valve when it happens. ????

Does it sound like this sound that "Supercourse" described...?

Originally Posted by Supercourse

... If it is the crankcase vent valve/oil separator gone bad, you should have got an audible indication a month or two back when shutting the X3 off.
Sort of like a fog horn...

If so, it's probably the CCV, like you'd originally suspected.

Originally Posted by timfitz63

it's probably the CCV, like you'd originally suspected.

I came here looking for how to test a clogged E39 CCV steel vent tube (integral with the oil dispstick guide tube).

Do you X3 guys have a similar setup as below?