Anybody know why I have oil in the air snorkel tube from the air cleaner to the throttle body on my '01 lightning? Could this be a crankcase ventalation problem?

 

Its usually crank case ventilation. Sometimes piston blow-by is the root cause.

 

Next time you change the oil, try not to top it off and see if the problem stops. Adding a crankcase breather cap will help keep oil out of the intake, but then you'll need a custom chip burned for it.


2002 True Blue SVT Lightning
-all stock and will stay stock
Amsoil Dealer

 

Someone (JeffsLightning) has posted some pic of oil filter similar to what is used on an air compressor, splice into the vent line.