I have 2002 2.3L 2WD.


I went to Autozone, Advanced Auto Parts, and ORielly's looking for a FPR and none of the stores had the part. Autozone said the part is in the fuel filter and ORielly's said the FBR is in the Fuel Pump.


Is the FPR in the Fuel Filter?
or
Is it in the Fuel Pump?
or
Is it located close to the Fuel Rail?


Thank you for any help.

 

Welcome to the forum

1998 and up Rangers got a Returnless fuel system, they run at 65psi pressure, so 1997 was the last year that had an FPR, 35psi pressure, FPR controlled fuel flowing back to the gas tank on the fuel Return line.

From 1998 computer calculates fuel use and cycles the fuel pump power accordingly.

There is an over pressure valve on the fuel line in the gas tank with the pump, but it isn't technically an FPR.
And as on all fuel pumps there is a Check Valve in the pump that holds pressure in the system when pump is off

Returnless does have a Pulse Damper on the fuel rail, when using pressures above 50psi the opening and closing of the fuel injectors can create pressure waves in the fuel rail, these can build up causing fuel flow issues out of injectors as the waves pass by.
Pulse Damper absorbs the waves to stop them from building up.
It is at the end of the rail and will have a vacuum hose attached, this hose is a safety feature not part of Pulse damper operation, if Damper were to leak fuel would be sucked into engine not dripped onto hot exhaust or engine parts

 

Thanks Ron, I was wondering what that vacuum hose was doing on the damper.

 

Thanks Ron!

 

I am having issues with loss of power going up a slight hill while driving. Also I have a slight miss, and it will kinda surge sometimes while idling. Has a hard time going past 65-70 mph. Had the shop I use for my other vehicles and they said that they were leaning towards the regulator or the pump. They changed the oil and I was telling Scott about what all I've done to it and the trouble with it. He had the guys look at it for free and my daughter had to have it back to go to school which is out of town. So they didn't get to fully look at it. But said that the live data while driving. Showed low/inconsistent fuel numbers. So he suggested to start with the regulator as it's the easiest and cheapest. I am having a really hard time finding one. Big parts stores don't carry it. And like you, they said to service it through the filter. Not possible. So I don't know were they they got that from. Dealership says that it's discontinue. Not available. To old I guess. Did you find one. I can get one online, but there are several. I have the part number from the dealer. But the search shows that it has a line that screws on. The factory one on the truck is not like that. It has a metal line that's part of it. So I'm puzzled. How did you get it to work. Learn by searching more on here that it's called a injector pressure damper. But still can't find it. Plus it also has the line on it and the other ones have a screw on type fitting.

 

What year and what engine?

A bad pressure damper, won't cause what you describe, it was used on 1998-2011 Rangers, when Ford switch to 55psi fuel system, it prevents pressure waves from building up in fuel rail

ASSUMING 1998-2011 Ranger
Your description could be two things
Yes, failing fuel pump/regulator(they are the same thing in these years) or clogged fuel filter
OR
Partially blocked exhaust system, this can be tested for with Vacuum gauge

 

What would cause the fuel pressure to be high 70psi. No power and missing. New fuel filter, plugs, wires, and coil. And a shop claimed they did fuel pump.

 

Welcome to the forum

You should start your own thread

Only thing that would cause higher fuel pressure would be faulty gauge, lol, or bad FPR in the gas tank, no other options for that one
New fuel pump doesn't mean new fuel pump assembly, which has the FPR on it
And new just means NEVER EVER TESTED now-a-days, so you will get bad parts right out of the box