Oil gone?

[andrewg29]

My 02 Yukon has a PCV with just an orifice. GM has a TSB out for h2O freezing in the PCV and blocking ventilation in freezing climates. Maybe yours has that type of PCV. If so there is no rattle in it.

The one I removed looked as if it had never been changed. I don't know if it ever had the thing that makes it rattle or not but it does now and I think ive convinced my self the tahoe runs better!

 

[ezdaar]

pop your intake tube off and open the throttle blade, stick your hand in there..
How oily is it..