I was cleaning my air filter yesterday and noticed a little oil leakage. So after pulling the hose off the throtlebody I found the throtlebody had oil/sludge in it along with the up air intake hose.
Any suggestions as to why this would be happening ?


Only mods are Swanson chip/aircleaner and Bassani exaust

 

If you plug that line that goes from the driver valve cover to the rubber air intake and then get a valve cover breather, that all goes away. The intercooler will stay cleaner with this setup.

Andy

 

This is a problem on every L as well as n/a 5.4s and the oil is everywhere when you tear into the motor.My lower intake actually had a little puddling of oil in it This is something that every L owner needs to address,and the sooner,the better.

 

Thanks thought something maybe screwed up. so it's not just me it's every L ?