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Thanks. I did the fuel pump last time. I was just wondering if something else could be the issue. Although, I don't believe the regulator is in the tank. Are you sure?

Problem! Fuel pump engages but no pressure at rail or filter. Yesterday, after much hassle, I did get 65 psi at the rail and the truck started periodically for the rest of the day. This morning same problem. Checked pressure at the rail and at the filter...nothing. And I haven't been able to...

Thanks for the breakdown. That is the part. My second question would be if a leak there would cause a significant vacuum issue. Doesn't the PVC regulate the flow of air? Or is it still unmetered air. I guess it would be a the intake for the PCV system is downstream of the MAF. But I don't know.

So I isolated the pcv system and ran some some through the system. The part in question is definitely leaking. So I'll probably take it off this week and put up a picture when I get it off. It does look like the picture above this post. I just don't know why a breather would be right before...

Yeah, sorry it hard to see what I'm talking about. So the green circle is where the PCV valve is installed. The red line follows the hose to the box in question. It is outlined by the magenta or whatever color that is on the screen. It is under that wiring and sits on top of the engine...

No. I am a novice "mechanic" but it is definitely the PCV tube running from the engine through the valve to the upper intake. The EGR is located on the front of the engine and feeds into the manifold through a rigid tube.

I've tried the carb cleaner method with no luck, but that was after I did the manifold gaskets. The problem, if my suspicion is correct, is that the part in question is under the lower manifold. I would have to use a hose to direct propane or carb cleaner under the manifold. Which is fine, I...

I have a 2001 Ford Explorer. The PCV valve is positioned behind the intake manifold in a tee fitting. The two out hoses connect to the upper intake. The feed hose goes under the lower manifold and goes into a small box that is on top of the engine. What is that box and should it move? I...