Started experiencing this last winter and it would come and go which is the strangest thing. When the engine is fully warmed up after about 20 seconds of idling gray smoke starts to come out of the exhaust. Clearly the smell is of burnt oil, not coolant. It doesn't happen all the time but more recently is a lot often. There is no smoke when driving normally.
I've searched various forums and I've seen the PCV system, cracked valve cover, piston rings, valve stem seals or turbo seals as possible culprits.
I have installed an ECS baffled catch can a few months back and before that I ran an IE block-off plate for 2-3 years.
Valve cover was replaced at the beginning of this year.
I recently did a cylinder compression test on a warm engine and got 170 PSI for all 4. Next was a cylinder leakdown test where I got 7-8% on all 4, so very good.
What I've discovered recently: if it's smoking and I turn on the AC, the smoking will stop. I do see on my boost gauge that when AC is on there is slightly less engine vacuum.
I'm not sure how to proceed here, without throwing money on useless things (I've been through this recently chasing a lean condition) :iono:
I've searched various forums and I've seen the PCV system, cracked valve cover, piston rings, valve stem seals or turbo seals as possible culprits.
I have installed an ECS baffled catch can a few months back and before that I ran an IE block-off plate for 2-3 years.
Valve cover was replaced at the beginning of this year.
I recently did a cylinder compression test on a warm engine and got 170 PSI for all 4. Next was a cylinder leakdown test where I got 7-8% on all 4, so very good.
What I've discovered recently: if it's smoking and I turn on the AC, the smoking will stop. I do see on my boost gauge that when AC is on there is slightly less engine vacuum.
I'm not sure how to proceed here, without throwing money on useless things (I've been through this recently chasing a lean condition) :iono: