• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

is this the correct fuel pressure regulator?

  • Thread starter Thread starter dochawk
  • Start date Start date Oct 21, 2023

dochawk

Member
Apr 12, 2023
38
2
8
Oct 21, 2023
#1
  • Oct 21, 2023
  • #1
it's a 1998 GT.

Everything I can find suggests that the regulator should look like an upright canister with a couple of Allen screws holding it to the rail or something nearby.

But this sure looks like it's either welded on or integral, and on it's side:



and if so, how do I replace the stupid thing???
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,218
234
Box behind Walmart
Oct 21, 2023
#2
  • Oct 21, 2023
  • #2
There is a snap-ring under this lip:






When it comes out, it looks like this:



I found the part here: https://www.carparts.com/details/Fo...Regulator/1998/GT/8_Cyl_4-dot-6L/SIPR140.html

I'm sure other places have it too but I didn't see a part number on the page. You get the link instead.

You're going to need a set snap-ring pliers if you don't already have a set.
 

dochawk

Member
Apr 12, 2023
38
2
8
Oct 22, 2023
#3
  • Oct 22, 2023
  • #3
thanks.

Have a pair of those from trying to do something else (I forget what, but it didn't work). The question is whether or not I can find it!

And apparently I have to order the part; it seems noone in town has one! [in Las Vegas, for crying out loud! But this may be another one of those 98-only parts that it seems to be loaded with.

it seems that amazon has both that one and the rotorcraft, one of which can deliver tomorrow instead of in a week.

oh, and the tell-tale symptom I left out: it pumps fuel to the rail, which dribbles out when you test the valve. Occasionally it starts and runs for a few seconds, dying instantly if you touchtone gas.
 

dochawk

Member
Apr 12, 2023
38
2
8
Oct 23, 2023
#4
  • Oct 23, 2023
  • #4
It's finally settling into my little brain that that's a housing as part of the fuel rail, and not the regulator itself.


is there a trick to rotating it far enough to find the holes on the C-ring?

I unbolted the fuel rail on the other side, too, thinking it might rotate, but the passenger side rail is blocked from coming up by the throttle body. Or do I need to remove, or at least loosen, that too.

the replacement regulator is supposed to come today!
 
Reactions: Noobz347

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,218
234
Box behind Walmart
Oct 24, 2023
#5
  • Oct 24, 2023
  • #5
Grab one of the ole'-lady's makeup mirrors and lay it down over there.
 
You must log in or register to reply here.

Similar threads

B
'03 GT Fuel Pump/Pressure/Delivery Issue
  • Brodach
  • Oct 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
886
SN95 4.6L Mustang Tech Oct 31, 2025
gkomo
Fuel Pressure Regulator rebuild
  • Scrapla347
  • Feb 10, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
308
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 24, 2025
89ripper
I
Engine Insane fuel trims +25% LTFT Bank 1, -16% LTFT Bank 2
  • imw_stl
  • Aug 31, 2025
  • SN95 4.6L Mustang Tech
Replies
2
Views
293
SN95 4.6L Mustang Tech Sep 19, 2025
Mustang5L5
finding wiring from PCM to fuel tank pressure sensor
  • Roont
  • Oct 19, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
207
1996 - 2004 SN95 Mustang -General/Talk- Oct 19, 2025
Roont
F
Low fuel pressure downstream of fuel rail, good pressure upstream
  • FYWW
  • Feb 29, 2024
  • SN95 4.6L Mustang Tech
Replies
5
Views
2K
SN95 4.6L Mustang Tech May 9, 2026
Cartel
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?