Just got an FV308 pcv valve in. Is the valve inside supposed to be kind of loose or is it supposed to be spring loaded? I can hear a small metal piece moving inside the valve freely

 

By design, it has a check valve inside. It rattles because the spring is very weak.

 

Ok I was halfway wondering if it was just weak spring. Just wanted to be sure! Thank you!

 

Pcv mod done! Though looking at the old components I’m not sure I needed it lol.

How far did everyone thread their pcv on? It got a little tight about halfway down the threads but I got all the threads in without excessive effort before it finally stopped.

 

As I remember it is a NPT thread. I always use teflon tape on NPT.

 

Don't worry about how far the PCV valve threads into the upper intake. Just screw it in until it's snug, then give it just a little "nudge".

Does your truck have SAI? That's less common on the earlier DIIs, but I see something connected to the small vacuum port under where you installed the PCV valve.

 

yes I believe it does! It’s the pump against the firewall on passenger side right?

 

Added a set of brand new OEM cup holders

 

that is the cleanest factory "whatever it is that thing is called" that i have ever seen.

 

It's unfortunate your truck has SAI. It just gets in the way and adds complication. Have you run the VIN? I wonder if your truck was sold originally in California.

I'm no expert, but in my experience SAI is uncommon on '99-'02 DIIs, and ubiquitous on '03-'04s.