So what exactly is the lifter valley? I understand the rest, is it just open to the air or what?

 

Immediately below the intake manifold is the lifter valley. Its where the cam, lifters (oddly enough. ) and pushrods hang out. It is internal under most circumstances, until you yank the intake.

 

First thing I would do is go out and buy a PCV valve from the dealer. Do NOT use an aftermarket PCV valve, only Mopar. Aftermarket PCV valves have been linked to excessive oil consumption.

If you are sure the oil isn't leaking out on the ground, then it must be leaving through the combustion chambers (read: being burnt). You are probably leaking more oil on the ground that you think, but if it isn't obviously showing up in the driveway then that isn't how you lost your 3 quarts.

After installing the new PCV valve, keep a close watch on your oil level. If it continues to use oil excessively, you'll know you need to do the Plenum fix that much sooner.

Oh, and keep a quart of oil or two in the bed. Handy if you don't have a ride to the parts store.

-JT

 

Haha I knew it housed all that just kinda looks *** backwards to do it like that. So using three quarts of oil is reasonable considering its just inhaling all of it.

 

Ya I went and bought a new pcv valve and have extra quarts in the truck now lol thank you for all the input everyone this forum hasn't let me down yet.