I checked for air leaks in the intake elbows and last week had a smoke test done with nothing popping up. I will inspect those oil lines tonight and might just go ahead and order the oil separator and all related lines from Pelican...less than $100 for all.

I do have a question...I keep seeing posts about replacing the CCV but I can't seem to find any related to my 2001 4.4. Does it even have those?

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Current:
2001 BMW X5, 4.4i, 138K miles, Black & Tan.

Past:
1984 318i
1993 318i
1993 325i
2001 325i
1997 528i
1974 Porsche 911 2.7
1976 Porsche 911s
1978 Porsche 911 Targa
1985 Porsche 924
1987 Porsche 944 S2 Cabrio