Hints Tips for Fuel Pressure regulator replacement
Did some basic diagnostic work...and found that if the FPR has low/no vacuum? Then it is allowing fuel to leak back into the intake via the vacuum hose. Yep...finally figured out the gassy smell when I start it warm issue!! Last month or so it's really been stinky.
Anyrate-- I found Napa has a FPR for about $25 bucks that will replace this one. I'd spend more $$ for a higher 'quality' one---but I'm going to also change out the disty for a rebuilt one with a new pickup and TFI module. (This truck has gotten a nasty habit of 'bucking' power at about 50-70 MPH..everyone's pointing at the TFI---but the fuel leaking into the intake at low vacuum has me wondering--so I'm going to change both units out and get it over with)
I've not found any advice or specs on how to do this change out. The shop manual is a bit vague and does not list the torque specs for the fuel pressure regulator to the fuel rail bolts. Plus I'm paranoid about fuel leaks--due to the connectors looking a bit cheesy.
It's the 2.9 engine...two bolts holding it together. Any suggestions or advice would be quite helpful!
S-
You might want to check for any stored codes in the computers CM before changing out anything else.
If you do not know how go to this link:
Ford Fuel Injection How To Run a Self-Test
Tighten two retaining screws on the FPR to 8-11 N-m (71-97 in-lb).
For FPR R&R use this PDF:
The other question I did have would be in reference to the return line. It's a 4" or so black plastic like tube that goes to the spring loaded quick connect. It's attached to the FPR using a barbed connection.
I have concerns about this being able to be removed and reused----Would my concerns be justified? Or can this be done without risk of fuel leaking?
S-








