SMOKE...HELP!!

[PEOPLEPC3]

2001 Ford F350 7.3 help... I dont have enough experience with diesels to know what I am lookin at. On the drivers side of the engine. On top of the valve cover toward the rear, there is a black box (approx 10 inches long) that sits on top of the valve cover. On the front of the box there is a small black rubber tube that is approximately 1/2 inch in diameter. Should this be hooked to something????? When I start my truck and let it idle, exhaust smoke pours out of it. I just did the Tymar filter yesterday...did I forget to hook something back up?? Go out and look at your truck and see what yours is hooked to....or tell me what I should do....Thanks in advance.

[Blue01F250]

is it the crank case vent that is usually vented into the intake???

[PEOPLEPC3]

you tell me...the tube that is coming out of this box on top of the valve cover is only about an inch long and is in a right angle....and facing the drivers side wheel. It is directly under the intake (tube running from air filter to turbo)

[ianstew]

i think it is the ccv

[PEOPLEPC3]

so where does it go?? If it shouldnt be hooked to anything...why is it smoking???

[Blue01F250]

Its the crank case vent -- It should be plugged into the intake

[Jeff_Northon]

If this is bolted to the top of the valve cover, with two bolts, and has a 90 degree rubber hose, it used to go to the intake in front of the turbo. Many people run this down and back towards the rear bumper. It is engine blow by or moisture (steam) from combustion.