Fuel pressure regulator?

[knucksfirst]

In the engine bay theres a circular piece which has a hose coming out from the top of it, the hose is cut. I did some research and I think it might be the fuel pressure regulator?? if thats makes sense heres a picture which kinda looks like it. Does anyone have picture of it or an engine bay of a OHV 4.0? I could point it right out. Just dont know what it is yet.

http://fordfuelinjection.com/images/fpr02.gif

 

[knucksfirst]

Found a picture put an arrow on it! not what is it and would could happen if that wire is cut?

 

[Jason_J]

Is this what youre looking for?

 

[Jason_J]

Fuel injection pressure regulator http://www.rockauto.com/catalog/raframecatalog.php

 

[knucksfirst]

my picture shows whhere it is, i just dont know what it is. And if its going to affect mileage or anything id like to get on it and figure out where the hose goes cause it just cut

 

[Jason_J]

Oh I misunderstood what you were asking for, here is everything you need to know http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0900c1528008d1ab

 

[knucksfirst]

does the top hose go to the gas tank?

 

[Jason_J]

no, there should be a vac line right there near the intake. mine comes from the left and is a red main line. just look around, you will find it there arent a shitload of vac lines anyway.

 

[James86]

Found a picture put an arrow on it! not what is it and would could happen if that wire is cut?

What you're pointing to in the picture is NOT your fuel pressure regulator. Its a vacuum actuator for your heating. Hence it's location on a heater core line and NOT a fuel line. Does your heat work?

 

[knucksfirst]

Yep my heat works!

 

[srteach]

The item that the red arrow is pointing to is a vacuum valve. This particular valve controls a short circuit valve in the heater coolant path. When this valve is closed (vacuum applied), coolant is re-routed back to the engine so that the AC doesn't have to work so hard to cool the cab. Essentially, it causes coolant to bypass the heater core.

Don't believe me? Run your AC and see if the hose gives a vacuum. Running in the AC on position, the switch may produce vacuum at the hose even if you don't have AC.

Either way, running that hose open could cause a (very small) vacuum leak under certain conditions. Use it or plug it.

 

[srteach]

By the way, You don't have a fuel pressure regulator. You have pressure regulated intermittent operation of the fuel pump. Your fuel rail is a metal plate with a schrader (bicycle type) valve near the front, and no return line to the tank. It is what the coils are mounted to, and extends front to back under the plastic intake on top of the engine.