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I had a check engine code indicating the PCV needed replaced on my 2002 F150 5.4L Triton Super Crew. I bought the part, watched some videos - should be super easy. Popped the hood, found the PCV right where I expected to...except, there was not 1 hose, but 3 hoses connected to it. In the pictures below, you can see it looks like the PCV I purcheased, but with some kind of piping around it that I think is connecting the two other hoses. Take a look.
Anyone have any ideas about this? I decided not to mess with it more till I had some guidance. Those last two hoses are on pretty tight and I also tried to see if that contraption would slip off and around the new PCV, but it won't budge. Thoughts?
What was the exact numeric code that told you that you need to replace the PCV valve? I'm not aware of one that says that.
You have a heated PCV valve, those are coolant hoses. You probably purchased a non-heated PCV valve. It has to be replaced as an assembly. Put it back together for now.
Whew, I thought I was loosing my mind there GLC - thanks for the reply. The close that was read was P0171 System too lean (Bank 1). Apparently PCV is the first thing recommended to try. And, at 2 bucks and a few seconds to change...why not. But this looks a bit more complicated. Do you have any video or walk through? I did a search, but nothing came up.
The P0171 is not necessarily pointing to the PCV valve. It's pointing to a vacuum leak somewhere. Follow the hose back from the PCV valve to the back side of the throttle body. Check the elbow coming off the throttle body for cracks and deterioration. The elbow is circled below:
You may have to replace the entire assembly to get that elbow.
Before you do that, check the whole hose going from the PCV to the throttle body, plus the other hose that tees off it. If they are good, your issue is elsewhere. That assembly isn't cheap, it's around 50 bucks..