PCV Vavle question for a greenhorn


Joined
Aug 10, 2026
Messages
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City
Portland
State - Country
OR - USA
Hey y'all, I just had my 03 V6 4.0L Ranger taken in for some brake repairs, and they found the PCV elbow collapsed and deteriorated. Rather than paying an extra couple hundred, it seemed like something I could probably do myself for much cheaper.
I've watched some videos and read some of the threads here, but I'm finding the elbow itself seems fine. It was hanging, disconnected from the intake altogether. When I felt around the intake, it looks like there's just an open hole, not the other end this locking mechanism that seems to be connected to the elbow.
I can't find information on what to buy to replace this, and everything I find in my searches seems to pull up the tube itself.
At the end of the month we've gotta take this baby into DEQ so any tips for this process would be super helpful.

Thanks in advance.
 
5/8 fuel line works.
 
Post some photos of the pcv and where it's decomposed.

The 4.0 valve cover fittings are funky.
 
Here's a video. See if it's the same as yours.

Yeah this looks pretty close. The valve connector itself that she pulls out has that locking mechanism, that I'd assume has a counterpart that's connected to the intake. The counterpart is what I'm missing, insofar that I can tell. The intake where I'd plug the valve just seems like an empty hole.

Or maybe this is all a moot point. MaybeI don't need to use these exact fittings, and can grab another connector in its place.

@PetroleumJunkie412 It definitely seems that way, based off what I've found. To be honest, when I looked in there, I didn't see anything obviously decomposed or collapsed. Maybe the fitting I'm missing was just pulled when they flagged it. I'll try to get some pictures tomorrow. I work fairly long days, and didn't get around to it today.

I'm pretty inexperienced with working on cars, so some of the wording may be off here, so apologies about that. But I'm pretty willing to get dirty and learn by trying, so I appreciate y'alls help, either way.
 
I got a rubber elbow in the Dorman HELP section at the local parts shack about 10 years ago. Been fine since.
 
Ok, I didn't get the best photos, because it's a pretty tight spot. The hose, the valve itself all seem fairly in tact, from what I can tell. It has the locking mechanism in tact, albeit dirty. What's not pictured is the intake manifold, where the part it locks into is absent. So I suppose I'm figuring out the best way to go about this. Find this part, which I don't really know the name of, or replace it with some other fitting. Or a third option I don't even know of.
 

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I got a rubber elbow in the Dorman HELP section at the local parts shack about 10 years ago. Been fine since.
Hey if that works, I'm into it. I think I actually bought that exact rubber elbow, I'm just not totally sure how that works. Do I just remove this adapter and jam it into one side of the elbow, and the other into the manifold?
 
That adapter is a twist lock connector. You should be able to just shove it back in its home and turn and lock it back into place
 
Ok so after some looking, it looks like what I was looking for was the PCV Valve grommet. Once I get that installed, I should be able to jam this baby back in place and, god willing, clear the check engine light. Fingers crossed. Only one I was able to dig up that fits was this. Surprisingly, the other auto parts stores didn't seem to have anything that fit my truck.
 

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