So I recently purchased a clapped 2002 Durango 5.9 R/T…I can tell it’s been abused and I overpaid cause I really wanted a Durango R/T, anyways I noticed there’s a breather tube on the left valve cover that goes into the intake manifold with a hose, on the other side there’s another breather tube attachment with no hose that should goes into the intake manifold…I’m pretty sure one of the sides should have a PCV valve but it seemed to be messed with by some idiot. Do I get a hose a connect it or do I replace the right side with a PCV valve and a new hose, I’m a GM guy and never worked on older dodges.

 

Everyone I've seen has only 1 side attached

 

One side should have the PCV valve, and the hose goes to the intake. The other side will just have an elbow, with a hose that goes to the air filter housing.

 

On my 2000 5.9 Magnum the driver side has the PCV valve and hose to intake and passenger side has the Elbow and hose to the Air intake piece a few inches away from the throttle body.

 

I found these pics online, I think they were from a post on this forum someplace if I remember correctly. Top is the PCV (drivers side) and Bottom is the elbow to intake by Valve body (pass Side)

 

Standard PCV set up from the beginning. You see the same thing on stuff from the 1980's. The PCV draws fumes from the crank case (that's the positive part of the name) and sends them to the base of the carburetor/throttle body assembly. At highway speeds when the fume volume is too much for the manifold to burn without trouble, the valve closes to divert it into the air filter housing to dilute it.

You don't realize how much volume there is, but on 1960's cars, it vented to atmosphere. It would draw in through the vent on one valve cover and send the fume to the carburetor base. I was driving a '67 Ford Galaxie with a 289 and when the vent filter on one valve cover got stopped up, it blew oil out the dip stick from excess pressure. When I cleaned the vent to open it up, oil quit blowing out.

 

I reconnected the hose on the PCV side