meatballcandy

I have recently rebuilt the engine in my truck and have everything hooked back up with the exception of one hose, and I absolutely cannot figure out where it goes... Please help









I have found diagrams here, but I am not able to locate this exact hose. I also have the haynes motor manual and cant find it the book... I also took lots of pics before I started the rebuild just in case I needed to look back, and it appears the hose runs to the back of the upper intake

Here is a pic before the rebuild, but this hose is pretty well hidden:

Marc D

I just did the upper and lower intake manifold gaskets on my exact same motor. That is the PCV valve heater line. Some of our model engines have a heat coil tube that runs from the heater line to the PCV valve wraps around it and returns to the water jacket in another location. If you didn't replace the factory valve the connection will be at the back of the left side valve cover on the valve. If you did you can plug this line but you'll have to disconnect the other line leaving the valve.Sorry about the big link.
https://www.google.com/search?q=2000...ml%3B300%3B300

meatballcandy

Thanks very much kind sir. You have solved my headache

Marc D

You are most welcome. I hope all of your hard work pays off on the rebuild.

meatballcandy

So I have looked it over and it appears ford wasn't consistent with the pcv valves on this engine. The Pcv valve on valve cover gasket has a line bringing water in and a line taking it to another valve located just above it on the rear passenger side of the upper intake. The hose I was missing goes from the 2nd valve I just mentioned back into the engine... Does that sound correct?

Marc D

I will look and verify this line does in fact run to a secondary location above the PCV valve. As I recall there was a T fitting at that location. I'm really poor about posting pics but I'll try.

Imacranky1

hi is there a chance that this the same set up as my 1998 4.2.if so can you please get back to me.check out my post. https://www.f150forum.com/search.php?searchid=7539802

Imacranky1

hi can you help me out .thanks

Marc D

OK. The hose nipple is coming off the EGR valve. It routs to the unit just to the left (passengers side) to the EGR pressure valve. Its the flat body sensor with a plug on the face of it. It goes from there to a second sensor just behind it. The hose will be about 6 inches long. Sorry about the long link. This pic is similar to yours.
https://www.google.com/search?espv=2&biw=1107&bih=562&tbm=isch&sa=1&q=200 0+ford+f150+4.2L+egr+pressure+feedback+sensor&oq=2 000+ford+f150+4.2L+egr+pressure+feedback+sensor&gs _l=img.12...96054.100192.0.106164.5.5.0.0.0.0.647. 2356.4-1j3.4.0.starcmoon...0...1.1.46.img..4.1.631.yt-FHHsH3j0#facrc=_&imgdii=_&imgrc=Cj2W6VZi05QYIM%253 A%3BM6kYsAehLXQAzM%3Bhttp%253A%252F%252Fwww.f150fo rum.com%252Fattachments%252Ff6%252F246313d13760037 75t-egr-pressure-feedback-sensor-truck-1.jpg%3Bhttp%253A%252F%252Fwww.f150forum.com%252Ff 6%252Fegr-pressure-feedback-sensor-221760%252F%3B480%3B640