I need to install the fuel pressure regulator & need to know if a vacuum hose attaches to regulator? My car is a 2000 Olds Intrigue 3.5 L dual cam 6 cyl. Can anyone help?

Fuel Pressure Regulator is located on the fuel rail.

1. Disconnect the negative battery cable.

2. Properly relieve the fuel system pressure.

3. Remove the air cleaner outlet tube(s).

4. Remove any necessary components to access the pressure regulator.

5. Disconnect the vacuum hose from the pressure regulator.

6. Remove the pressure regulator attaching screws.

7. Remove the pressure regulator from the fuel rail.

To Install

8. Discard the O-rings on the pressure regulator and replace them with new ones.

9. Lubricate the O-rings with clean engine oil.

10. Install the regulator into the fuel rail and tighten the retaining screws.

11. Connect the vacuum hose to the regulator.

12. Install any components removed to access the regulator.

13. Install the air cleaner outlet tube(s).

14. Connect the negative battery cable.

I donnot recommend doing this by your self
it involves so much tech prosesure but to hav an idia here you go .
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and can be ignited resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running.
WARNING: Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved.

Removal procedures for fuel pressure regulator

1. Relieve the fuelsystem pressure. additional spiciel tools needed.

1. Disconnect the battery ground cable. For additional information.

1. Remove the engine air cleaner, the air cleaner outlet tube and the accelerator splash shield.

1. Remove the throttle body spacer.

1. Disconnect the EGR vacuum regulator (EVR).
   • Disconnect the electrical connector.
   • Disconnect the vacuum line.

1. Remove the bolts and the bracket assembly.

1. Remove the pressure regulator.
   1. Disconnect the vacuum hose.
   1. Remove the snap ring.
   1. Remove the pressure regulator.
   Installation
   
2. CAUTION: Check for fuel leakage after installation is complete.
   NOTE: Lubricate the new O-ring seals with engine oil.
   To install, reverse the removal procedure.

1991-94 Models - REMOVAL & INSTALLATION

1. Remove the air intake tube and resonator assembly.
   
2. Properly relieve the fuel system pressure.
   
3. Remove the bolts from the fuel line clip.
   
4. Using a 15 / 16 in. (24mm) backup wrench to prevent damage to the inlet port and bracket, disconnect the fuel inlet and return lines from the pressure regulator/fuel rail assembly.

If difficulty is encountered accessing the fuel return line nut, loosen and/or remove the fuel supply and rail attachment fasteners.

1. Disengage the fuel pressure regulator vacuum hose.

Fig. 6: Disengage the fuel pressure regulator vacuum hose

Fig. 7: Use a suitable wrench to loosen ...

1. Remove the regulator assembly attaching screw, then remove the regulator assembly. Plug the regulator port in the fuel rail with a clean rag to prevent system contamination.

Fig. 8: ... and remove the mounting screw from the pressure regulator/fuel rail assembly



Fig. 9: Remove the fuel pressure regulator assembly from the fuel rail

1. Do not remove the O-ring from the retainer in the pressure regulator fuel outlet, unless it is damaged and requires replacing. Always remove and discard the O-ring from the fuel inlet.

To install:

1. Lubricate the new fuel inlet O-ring and, if necessary, the new outlet O-ring with clean engine oil, then install the O-ring(s) in the pressure regulator assembly.
   
2. Position the regulator assembly to the fuel rail. Coat the threads of the attaching bolt with Loctite® 242 or an equivalent threadlock, then install the bolt and tighten to 106 inch lbs. (12 Nm).
   
3. Connect the fuel pressure regulator vacuum hose.
   
4. Connect the fuel inlet and return lines, then tighten the lines to 133 inch lbs. (15 Nm) using a backup wrench to prevent port damage.
   
5. Cycle the ignition switch to prime the fuel system, then start the engine and check for fuel leaks.
   
6. Turn the ignition OFF and install the air intake tube and resonator assembly.

Hope this helps (remember to rate and comment this answer).

Not sure why Haynes says to do that. below is instructions from autozone.com, and none of the engines require the fuel rail to come off. That said, if you have the 3.4, you may need to pull the upper intake manifold.

Removal & Installation The need to work as cleanly as possible cannot be over-emphasized. Even the smallest amount of dirt, if allowed into the fuel pressure regulator and/or the fuel rail, will find its way to the fuel injectors. The nozzle openings of the injectors are very small. Keep hands and tools clean. Clean the areas to be disconnected with a suitable solvent. Carefully cover open fittings and connections to keep out foreign material. Dirt in the injectors almost guarantees a clogged fuel injector and engine performance problems.

3.4L (VIN E) Engines

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the upper intake manifold assembly.
4. Disconnect the vacuum line from the pressure regulator.
5. Remove the regulator retaining screw and remove the retainer bracket. Using a clean shop cloth to catch fuel spillage, carefully pull the regulator from the fuel rail. Twist the regulator slightly while removing to ease removal. Discard the O-ring.
   
   

   Fig. Exploded view of the fuel pressure regulator mounting-3.4L (VIN E) engines
   

To install:

1. Clean all parts well. DO NOT use shop compressed air to test or clean a fuel pressure regulator. Clean the fuel pressure regulator screen, if necessary. DO NOT immerse the fuel pressure regulator in a solvent bath or it will be damaged.
2. If the filter screen has been contaminated, it should be removed and the pressure regulator replaced.
3. Lubricate a new pressure regulator O-ring with clean engine oil and install on the regulator inlet.
4. Install the fuel return pipe to the regulator.
5. Install a new retainer and spacer bracket into the slot on the fuel rail and install the pressure regulator to the fuel rail. Tighten the fuel return line nut to 13 ft. lbs. (17 Nm).
6. Connect the vacuum line to the pressure regulator and install the retainer screw. Tighten to 76 inch lbs. (8.5 Nm).
7. Inspect and verify that the retainer and spacer bracket is engaged in the slots in the fuel rail. Grasp and pull on the regulator to ensure that it is properly seated.
8. Install the upper intake manifold.
9. Connect the negative battery cable.
10. Inspect for leaks using the following procedure:
    1. Turn the ignition switch to the ON position for 2 seconds.
    2. Turn the ignition switch to the OFF position for 10 seconds.
    3. Turn the ignition switch to the ON position again.
    4. Inspect all areas for fuel leaks.

3.8L Engines

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Clean any dirt from the fuel pressure regulator retaining ring.
4. Remove the vacuum hose from the pressure regulator.
5. Remove the snaprings. Twist the regulator slightly and pull the pressure regulator from the fuel rail. Use a shop towel to catch fuel spillage as the regulator is removed.
6. Remove the O-rings and O-ring back-up.

To install:

1. Clean all parts well. DO NOT use shop compressed air to test or clean a fuel pressure regulator. Clean the fuel pressure regulator screen, if necessary. DO NOT immerse the fuel pressure regulator in a solvent bath or it will be damaged.
2. If the filter screen has been contaminated, it should be removed and the pressure regulator replaced.
3. Lubricate the new pressure regulator O-rings with clean engine oil. Install the O-ring back-up, the large O-ring and then the small O-ring. Install the pressure regulator and secure with the snapring.
4. Attach the vacuum hose.
5. Connect the negative battery cable.
6. Inspect for leaks using the following procedure:
   1. Turn the ignition switch to the ON position for 2 seconds.
   2. Turn the ignition switch to the OFF position for 10 seconds.
   3. Turn the ignition switch to the ON position again.
   4. Inspect all areas for fuel leaks.
   
   

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Clean any dirt from the fuel pressure regulator retaining ring.
4. Remove the vacuum hose from the pressure regulator.
5. Remove the snaprings. Twist the regulator slightly and pull the pressure regulator from the fuel rail. Use a shop towel to catch fuel spillage as the regulator is removed.
6. Remove the O-rings and O-ring back-up.

To install:

1. Clean all parts well. DO NOT use shop compressed air to test or clean a fuel pressure regulator. Clean the fuel pressure regulator screen, if necessary. DO NOT immerse the fuel pressure regulator in a solvent bath or it will be damaged.
2. If the filter screen has been contaminated, it should be removed and the pressure regulator replaced.
3. Lubricate the new pressure regulator O-rings with clean engine oil. Install the O-ring back-up, the large O-ring and then the small O-ring. Install the pressure regulator and secure with the snapring.
4. Attach the vacuum hose.
5. Connect the negative battery cable.
6. Inspect for leaks using the following procedure:
   1. Turn the ignition switch to the ON position for 2 seconds.
   2. Turn the ignition switch to the OFF position for 10 seconds.
   3. Turn the ignition switch to the ON position again.
   4. Inspect all areas for fuel leaks.

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.

Under the upper intake manifold:

This procedure is for the CSFI system as the CMFI system uses an integral fuel pressure regulator. The CSFI uses a replacable unit mounted on the CSFI assembly.

REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the fuel system relief procedure in this section.
3. Remove the upper manifold assembly.
4. Remove the fuel pressure regulator vacuum tube.
5. Disassemble the fuel pressure regulator snapring retainer.
6. Remove the fuel pressure regulator assembly and the O-rings. Discard the O-rings, filter and back-up O-rings.

To install:

1. Lubricate the O-rings with clean engine oil and install as an assembly.
2. Install the fuel pressure regulator, attach the vacuum tube.
3. Install the snapring retainer.
4. Install the upper manifold assembly.
5. Connect the negative battery cable.

most in tank pumps deliver generic pressure of between 60-90 psi. the pressure needed for specific models is set and kept by the fuel pressure regulator located in the gas supply line up near the intake manifold (maybe with a vacuum line running to it), usually in the 18-45 psi range. your local auto parts store can give you your specific information, as can the parts desk person at your local dealership.

Fig. 1: Fuel pressure regulator exploded view

CAUTION Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

1. Disconnect the negative battery cable.
2. Properly relieve the fuel system pressure.
3. Remove the air cleaner outlet tube(s).
4. Remove any necessary components to access the pressure regulator.
5. Disconnect the vacuum hose from the pressure regulator.

1. Remove the pressure regulator attaching screws.

1. Remove the pressure regulator from the fuel rail.

To install:

1. Discard the O-rings on the pressure regulator and replace them with new ones.

1. Lubricate the O-rings with clean engine oil.

1. Install the regulator into the fuel rail and tighten the retaining screws.
2. Connect the vacuum hose to the regulator.
3. Install any components removed to access the regulator.
4. Install the air cleaner outlet tube(s).
5. Connect the negative battery cable.

Hope help with this (remember rated this).

GM Century/Lumina/Grand Prix/Intrigue 1997-2000
Fuel Pressure Regulator - Removal & Installing
The fuel pressure regulator is a diaphragm-operated relief valve with fuel pump pressure on one side and regulator spring pressure and intake manifold vacuum on the other side. The regulator's function is to maintain a constant fuel pressure across the injectors at all times. The pressure regulator compensates for engine load by increasing fuel pressure as engine vacuum drops.

The fuel pressure regulator is serviced as a separate component. When servicing the pressure regulator, make sure that the O-ring back-up, large O-ring, filter screen and small O-ring are properly positioned on the pressure regulator.


Fig. Cutaway view of a typical fuel pressure regulator


REMOVAL & INSTALLATION
The need to work as cleanly as possible cannot be over-emphasized. Even the smallest amount of dirt, if allowed into the fuel pressure regulator and/or the fuel rail, will find its way to the fuel injectors. The nozzle openings of the injectors are very small. Keep hands and tools clean. Clean the areas to be disconnected with a suitable solvent. Carefully cover open fittings and connections to keep out foreign material. Dirt in the injectors almost guarantees a clogged fuel injector and engine performance problems.
3.1L and 3.4L (VIN E) Engines

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure using the procedures found in this section.
3. Remove the upper intake manifold assembly. Please see .
4. Disconnect the vacuum line from the pressure regulator.
5. Remove the regulator retaining screw and remove the retainer bracket. Using a clean shop cloth to catch fuel spillage, carefully pull the regulator from the fuel rail. Twist the regulator slightly while removing to ease removal. Discard the O-ring.

Fig. Exploded view of the fuel pressure regulator mounting-3.1L and 3.4L (VIN E) engines
To install:

1. Clean all parts well. DO NOT use shop compressed air to test or clean a fuel pressure regulator. Clean the fuel pressure regulator screen, if necessary. DO NOT immerse the fuel pressure regulator in a solvent bath or it will be damaged.
2. If the filter screen has been contaminated, it should be removed and the pressure regulator replaced.
3. Lubricate a new pressure regulator O-ring with clean engine oil and install on the regulator inlet.
4. Install the fuel return pipe to the regulator.
5. Install a new retainer and spacer bracket into the slot on the fuel rail and install the pressure regulator to the fuel rail. Tighten the fuel return line nut to 13 ft. lbs. (17 Nm).
6. Connect the vacuum line to the pressure regulator and install the retainer screw. Tighten to 76 inch lbs. (8.5 Nm).
7. Inspect and verify that the retainer and spacer bracket is engaged in the slots in the fuel rail. Grasp and pull on the regulator to ensure that it is properly seated.
8. Install the upper intake manifold. Please see .
9. Connect the negative battery cable.
10. Inspect for leaks using the following procedure:
    • Turn the ignition switch to the ON position for 2 seconds.
    • Turn the ignition switch to the OFF position for 10 seconds.
    • Turn the ignition switch to the ON position again.
    • Inspect all areas for fuel leaks.

Other size engine can find in autozone.com (free register).

Hope this help (remember rated this).

A very common for these problems is a leaking fuel pressure regulator. This leaks gas and causes extended crank times, stalling, and check engine light.


TechJK
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