4.0 SOHC Swap

[USMCMiller]

I think I know a guy that has one

 

[adsm08]

Ok, worked on an 04 Ranger with a 4.0 today and took a peek at that port in question.

I was right the first time, it's a coolant tap for a heated PCV valve.

 

[USMCMiller]

So is something supposed to be attached to it?

 

[adsm08]

Yeah. Check the PCV valve at the back of the driver's side of the engine. There should be a little metal horse-shoe around it. That port that you posted runs a little hose around the back of the engine to that horse shoe, and then the other side of the horse shoe goes back to I can't remember where exactly.

But yeah, it's part of the cooling system. It runs hot water around the PCV to keep it warm and prevent it from getting stuck or iced in cold weather. I know that isn't something you have to deal with in Florida, but you at least need to find the other end of the circuit and run the line across them and bypass the PCV so that you don't have a leak.

 

[USMCMiller]

I'll check it out tonight when I get home.

 

[USMCMiller]

Is this the part? More particularly the smaller hose? I fit it on and it was a snug fit