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Fuel rail pressure regulator cant find it on motor

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Hi, if you have the V-6 engine, the regulator is under the upper intake manifold. If you have the 4 cylinder, it's at the end of the rail as shown below.
fuel rail pressure regulator cant find it on motor - jturcotte_510.jpg

Posted on May 27, 2011

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1 Answer

Where is the return fuel line connect to at the motor on a 2003 Mitsubishi galant

The fuel pressure regulator pressurizes the fuel rail, The return line should be after the pressure regulator, probably connects to the fuel pressure regulator.

Apr 13, 2016 | Mitsubishi Cars & Trucks

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Where is the fuel regulator on a2006 ford expedition

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Dec 15, 2015 | 2006 Ford Expedition

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Where is the fuel pressure regulator located?

The regulator is attached to the fuel rail, under the fuel rail cover. Here is a drawing... it is item #4. The drawing is an exploded view - follow the trace-line from the part to the rail cross-over and you see where it connects. Here is the R/R procedure from AUTOZONE....

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure.
  3. Remove the fuel rail cover.
  4. Remove the fuel rail.
  5. Remove the fuel tube bracket attaching screw, then remove the bracket.
  6. Unfasten the pressure regulator attaching screw and separate the regulator from the fuel rail assembly.
  7. Remove the fuel outlet tube retaining clip, then remove the tube from the pressure regulator.
  8. Remove the pressure regulator inlet and fuel outlet tube O-rings, then discard.
  9. Inspect the filter screen for contamination. If contaminated, replace it with a new one.
To install:
  1. Lubricate the new pressure regulator inlet and outlet tube O-rings with clean engine oil and install.
  2. Install the fuel outlet tube into the regulator and install the retaining clip.
  3. Push the pressure regulator into the fuel rail and install the retaining screw. Tighten the screw to 89 inch lbs. (10 Nm).
  4. Install the fuel tube bracket and retaining screw. Tighten the screw to 44 inch lbs. (5 Nm).
  5. Install the fuel rail assembly.
  6. Connect the negative battery cable.
  7. With the engine off, turn the ignition switch to the ON position for 2 seconds, then turn it to the OFF position for 10 seconds. Again turn it to the ON position and check for fuel leaks.

Hope this helps!


Jun 28, 2015 | Pontiac Cars & Trucks

1 Answer

I need to replace de fuel presurre sensor in a pontiac montana ,do i have to just replace the sensor ,o the sensor came with the fuel pump?thank you

Replacing the fuel pressure regulator, involves just replacing the regulator at the end of the fuel rail in the engine compartment, but fuel pressure sensor - does this mini-van have a fuel pressure sensor?
replacing the fuel pressure regulator: (1) locate it at the end of the fuel rail in the engine compartment,
(2) relieve fuel system pressure (3) disconnect fuel pressure regulator vacuum line. (4) remove fuel pressure regulator retaining screw (retain for re-use (5) using a shop towel to catch spilled fuel, lift & twist Fuel pressure regulator to remove it from the fuel rail. (6) remove/discard retainer and spacer bracket from the fuel rail. (7) remove fuel pressure regulator from the engine fuel return pipe. (8) remove/discard Fuel Pressure Regulator inlet O-ring (9) Check Fuel Pressure Regulator filter screen for contamination - if contaminated, replace Fuel Pressure Regulator. (10) Lubricate new Fuel Pressure Regulator inlet O-ring with clean engine oil & install onto the Fuel Pressure Regulator inlet. (11) Install the fuel return pipe onto the Fuel Pressure regulator (12) Install new retainer & spacer bracket into the slot on the fuel rail.
(13) Install Fuel Pressure Regulator onto Fuel Rail & tighten Engine Fuel Return Pipe nut to 13 ft-lbs (17 Nm). (14) connect Fuel Pressure Regulator vacuum line, (15) Install Fuel Pressure Regulator attachng screw & tighten to 76 in-lbs (8.5 Nm). (16) Inspect & verify that retainer & spacer bracket is engaged in the slots on the fuel rail. Grasp & pull on the Fuel Pressure Regulator.
to ensure that the Fuel Pressure Regulator is properly seated. (17) inspect for fuel leaks with this
procedure: On 2sec,(holy rollers), off 10sec will be left on, inspect for leaks while running.

Dec 11, 2010 | 2000 Pontiac Montana

1 Answer

On my toyota twincam 4 A-GE motor the fuel is not been returned to the tank. from the tuel rail. there is a high amount of pressure on the feul rail inlit.what could be the problem?

With fuel pressure gauge hook up, check reading, then disconnect vacuum hose from fuel pressure regulator, regulator sit on injector fuel rail, fuel pressure should go up, if it don't fuel pressure regulator stuck close, and not letting fuel back into fuel tank, hope this was very helpful.

Aug 27, 2010 | 1992 Toyota Corolla

1 Answer


Try replacing the fuel filter and locate the fuel pressure regulator it should be located on the top of the motor at the area where the beginning fuel rail is, ( the fuel rail feeds the fuel injectors) if you notice the the pressure regulators vacuum hose is broken replace also if the pressure regulator appears to be wet with gas replace it. The fuel pump may be bad check for appropriate pressure at access valve on fuel rail it should be a minimum of 30 psi fuel pressure.

Feb 24, 2010 | 1991 Volvo 240

1 Answer

What happens when the fuel pressure regulator goes bad?

The motor more than likely won't start or it could flood out with gas.
Fuel pressure regulator controls fuel pressure. You should have 30psi at the fuel rail for the motor to start.

May 18, 2009 | 1995 Ford Windstar

1 Answer

I cant find where the fuel pressure regulator is

it is located on the fuel supply rail (connects to top of fuel injectrs) to the fuel injectors, it has a vacuum hose going to it.

Apr 18, 2009 | 1994 Buick LeSabre

1 Answer

Cant find the fuel pressure regulator on a 2000 mecury mystique

This vehicle is most likely a returnless system,only one fuel line to the fuel rail. If it is returnless the fuel pressure regulator is part of the fuel pump module in the tank.

Feb 20, 2009 | 2000 Mercury Mystique

3 Answers

Where is the fuel pressure regulator located on an 2002 f150 v6?

in the center of the motor,in the rear on the fuel rail

Jan 16, 2009 | 2002 Ford F150 Regular Cab

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