crankcase vent tube.??
 

Okay so i have an 06 5.9 3500 a little over 25000miles.now my problem is that it has excessive blow by and throws out tons of smoke. Also leaking oul around 1 gallon every 40-50 mikes. Help!

25k miles!!!!! That's it?? Sounds like something BAD is wrong. Excessive blow-by generally stems from broken piston rings. Where is the oil leaking from??

its leaking from my breather tube on driver side. Also if it is my pistón rings wouldnt my truck run rough or something? Because it dont it has lost power though.

Have you checked to see if you're making oil...i.e. injectors cracked causing fuel dilution? If it's lost power and has the blow-by you described then you've lost compression. The '06 model year, I have read, was bad about cracked rings.

DTR member "BigIron" really seems to know his stuff......he'll probably chime in on this one!!

Sounds to me like your gonna be in for a refresh.

How do i check that? Also i heard somthing about my vaccum pump might be going out as well?

Pull the dipstick and see how much oil it shows. If the injectors aren't causing the engine to "make oil" then you better pull the head and see what's going on.

Alright well ima get to work and check this out im almost positive its my piston rings. Will i need any special tools?

Friend, if you have to ask that question I am pretty certain you should have this professionally done. You could have a leak down test done ahead of time which is a lot cheaper and point to whether it is necessary to pull the head. A contribution test could be done to isolate the problem cylinder too.

Both of those tests are cheaper than the cost of a new headgasket even if you did it yourself.

Not trying to bash you in anyway but be helpful.

25,000 or 250,000 bet he lost a zero, if not he drives less than me, my 03 has 44k.