Hey all,

As the title says, I'm looking tor info on the CCV. Reading the net, it claims that in '06 and '07 the CCV is not separate from the plastic valve cover and the whole cover must be replaced in order to change the CCV. Is this accurate or can the CCV be cleaned or replaced?

Ty in advance

Steve

 

To my knowledge the 5.9 CCV doesn't really need serviced, but correct its built into the valve cover. Its pretty much a ball of steel wool to separate oil from air.

 

If its "pretty much a ball of steel wool" if it gets clogged, would that allow oil to puke out? Have a pretty major oil leak that appears to be coming from the hose on the rear drivers side of the valve cover. I was told that under pressure/load it would spew oil (towing, pushing the truck hard, etc) and we seem to be going thru a sh*t ton of oil....almost a gallon every 2 weeks....Help!

Thanks,

Steve

 

if you're spewing that much oil you have a scorched piston

 

Forgive my ignorance on diesel tech, but wouldn't a scorched piston have the oil pouring out the exhaust? This seems to be puking out the drivers side of the block and spraying underneath and all over the rear of the tailgate or trailer....

Thanks

Steve

 

Scorched us a very loose term, burned a hole in the top, spongy rings, scoured cylinder wall. Oil barely passes into the compression chamber even with a hole in the piston, as the only way oil gets up there is by the piston squirter nozzles and some splash residue, but the odd of burning through right above the squirter are about impossible.

What happens is all the compression pressure is lost into the crank case, and it exits the motor through the draft tube carrying oil vapors with it, on an 06/07 motor this is caught but the CCV screen and drained back to the engine by a small tube that runs down the side of the motor and back into the crank case via a plate over the old mech fuel pump flange. and the air is vented to atmosphere, in the case of the excessive draft or blow by pressure the screen just cant handle catching the oil and it leaks out the tube.

I'm not a fan of the oil cap test but its pretty simple, just pull your oil fill off the valve cover and leave it in loose or flip it over on top of the hole, it should stay put and not flop at all, if its lifting, you have excessive blow by

post a video if you're unsure, proper diagnosis would be a manometer on the draft tube and I think spec is 3-4 inches of water under full boost

 

We already tried the oil cap test and it did not move at all...will have to research the manometer on the draft tube test.

Thanks for the info and clarification.

Steve