Blue Smoke right exhaust only

[izzy0218]

Hello everyone;

Wife drives a 2005 X5 4.4i, about a year ago we had the PCV valves replaced because every time she would be at a running the car for a while and would come to a stop it would poof blue smoke, it got a little better right after we changed the PCV valves but now is a lot worse, it even does it when the car just idles, and is only on the passenger's exhaust, when she comes to a stop then takes off a lot of smoke.

So i asked the guy that fixed it before, and said he can't think of anything else other then the valves.

I did a some reading here, and most of the post mention the Oil seperator, would that be the next thing to check on the car?

I need some advice on what could be next.

Thanks!