What part is it that goes from your valve cover to your airbox. I was under the impression it was your PCV valve but I cant find this part for my jeep at the local store my is busted in half so id like to replace it even tho its been running fine for a year like that. What part is it im looking for?

 

You can get that piece at Napa, just bring in the old one. The PCV valve is built into the valve cover on the 4.0 I6.

 

Not to be off topic but whats the difference between a ccv valve a pvc valve? And what one is in the 4.0

 

the 4.0 has a "CCV Fitting", not a "PCV Valve".

The CCV fitting has a metered hole in the end of the elbow. There are no moving parts, and no vacuum actuated valve. It is constantly open.

A PCV valve has a one-way vacuum actuated valve inside the elbow

 

So the rear is a ccv fitting and the one in front to your air box is just an open elbow?

 

correct

 

So would you ever have to replace a ccv fitting?

 

not unless it was cracked or broken. Just clean it out with some carb cleaner and you're good to go.

 

Good to know. Thanks

 

okay well i dont have to replace my ccv the elbow at the front of the manifold going into my airbox is broken what part is that?

 

front ccv fitting/elbow

 

I just checked the 97-99 parts catalog.



Starting From the valve cover the elbow

5303 0991 FITTING, Crankcase Vent Tube

And it's grommet

2946 079 GROMMET, Crankcase Vent

And the tube to the airbox...

4854 180 TUBE, Cylinder Cover to A/Clnr

 

just talk to the parts guy at your local dealership. They keep these parts in stock. Grommets are like $7, CCV tubes are about $17

 

Just be prepared to have to go around and point it out on the engine diagram. The CCV thing messes a lot of parts guys up for some reason. I've replaced two, and both times, at different dealerships, I had to go around and find my own part.

 

Thats why I posted the OEM part numbers and descriptions.