On my '02 LS v6 I pulled off my intake manifold and the lower intake and there is an elbow which connects to the manifold, and is connected to a little box which is bolted between the manifold ports. Attached is a picture, any idea what it is? Should I replace any parts of it since I already have it all open?
![pcv.jpg pcv.jpg](https://www.lincolnvscadillac.com/forum/data/attachments/75/75739-c9d108b02dbdc4c50aaec1b4cd45e511.jpg)
![pcv.jpg pcv.jpg](https://www.lincolnvscadillac.com/forum/data/attachments/75/75739-c9d108b02dbdc4c50aaec1b4cd45e511.jpg)