Question about 1998 Pontiac Sunfire

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Fuel pressure regulator

I have a 1998 Sunfire 2.4. Do you have to pull the fuel rail off to take the fuel pressure regulator out?

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  • jdmack Sep 01, 2008

    Chiltons book said to remove it,BUT you do not have to.

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  • Pontiac Master
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What is the question, did you get it off??

Posted on Nov 06, 2008

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1 Answer

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!

5797065a-7fe8-4256-a906-04404173de14.jpg

Jun 28, 2015 | Pontiac Cars & Trucks

1 Answer

Need Instructions on replacing fuel regulator on 1987 chevys10 pick up 2.8


Fuel Pressure Regulator - REMOVAL & INSTALLATION(see Figures 1, 2, 3, 4, 5 and 6)
  1. Relieve fuel system pressure. Disconnect the negative battery cable.
  2. Clean dirt and grease from the regulator retaining ring.
  3. If equipped with a bolt on-type pressure regulator, remove the fuel return line from the return tube by squeezing the tab and pulling it off.
  4. Disconnect the vacuum line from the regulator.
  5. If equipped with a bolt on-type regulator, perform the following:
    1. Remove the regulator attaching bolt(s)/screw(s) from the bracket.
10_1_2011_3_13_11_am.jpg
Image LINK

Fig. 1: Remove the 2 fuel pressure regulator-to-rail attaching bolts (fuel rail removed from vehicle)

  1. If equipped with a snapring-type regulator, perform the following:
    1. Remove the snapring from the regulator.
  2. Wrap a towel around the regulator to catch any fuel that may escape. Remove the regulator from the fuel rail using a twisting and pulling motion.
10_1_2011_3_16_21_am.jpg
Image LINK

Fig. 2: ... then remove the regulator by using a twisting and pulling motion
  1. If equipped with a bolt on-type pressure regulator, disconnect the fuel return tube assembly from the pressure regulator.
  2. Cover all openings with masking tape to prevent dirt entry. If the regulator is being reused, inspect the filter screen, if equipped, for contamination. If contamination exists, replace the filter screen

10_1_2011_3_18_32_am.jpg

Image LINK

Fig. 3: Exploded view of the regulator mounting on the fuel rail - VIN K engine shown

10_1_2011_3_20_13_am.jpg

Image LINK
Fig. 4: Some regulators, such as this 1995 VIN L, are secured with a mounting bolt
  1. If further disassembly is necessary, perform the following:
    1. Remove the small regulator O-ring.
    2. Remove the regulator filter screen.
    3. Remove the large regulator O-ring.
    4. Remove the O-ring back-up.

10_1_2011_3_26_12_am.jpg

Image LINK

Fig. 5: Exploded view of the regulator housing (1), small O-ring (2), filter screen (3), large O-ring (4), O-ring back-up (5), regulator (6) and snapring (7)To install:
  1. If the regulator was disassembled, perform the following:
Lubricate all O-rings with clean engine oil prior to assembly.
    1. Install a new regulator O-ring back-up and large O-ring.
    2. Install the regulator filter screen.
    3. Install the small regulator O-ring.

  1. If the regulator is not being replaced with a new one, lubricate new O-rings with clean engine oil, then position them on the old regulator.
10_1_2011_3_28_18_am.jpg

Image LINK

Fig. 6: If the regulator is not being replaced, remove and discard the old O-rings
  1. If necessary, connect the fuel return tube to the pressure regulator and secure with the retaining nut. Tighten the nut to 13 ft. lbs. (17 Nm).
  2. Install the regulator into the regulator housing and seat with even pressure.
    1. Install the snapring or retaining bolt(s)/screw(s), as applicable.
  3. Attach the vacuum line to the regulator.
  4. If removed, connect the fuel return tube to the pressure regulator.
  5. Connect the negative battery cable.
  6. Turn the ignition switch ON and OFF to allow fuel pressure back into system. Check for leaks.
Hope helps.

Oct 01, 2011 | 1987 Chevrolet S-10 Pickup

1 Answer

How to install a fuel presure regulator on a 1998 chevrolet tahoe


Fuel Pressure Regulator - REMOVAL & INSTALLATION
(see Figure 1)
  1. Disconnect the negative battery cable.
  2. Relieve fuel system pressure.
  3. Disconnect the ignition coil.
  4. Remove the upper intake manifold.
  5. Disconnect the vacuum line to the regulator.
  6. Remove the snapring from the regulator housing.
  7. Place a towel under the regulator to absorb any spilled fuel and remove the pressure regulator from the fuel rail socket.
  8. Remove the pressure regulator from the fuel rail.
  9. Remove the pressure regulator O-ring filter, O-ring backup and O-ring and discard them.
zjlimited_1663.jpg

Fig. 1: Exploded view of the pressure regulator assembly-MFI systems



To install:

  1. Before installing the O-rings, lubricate them with clean engine oil and install them on the regulator inlet as a complete assembly.
  2. Install the snapring retainer into the slot on the regulator housing.
  3. Connect the vacuum line to the regulator.
Ensure that the retainer is properly seated in the slot in the regulator housing. Pull on the regulator to make sure that it is properly seated.
  1. Connect the negative battery cable.
  2. Turn the ignition ON for 2 seconds and then turn it OFF for 10 seconds. Again turn the ignition ON and check for leaks.
  3. Install the manifold plenum.
Hope this helps.

Aug 02, 2011 | 1998 Chevrolet Tahoe

1 Answer

Im gonna rplace the fuel pressure regulator. In the haynes manuel it says that you need to remove the fuel rail. Ive asked a few people and they said they dont think it is necassary it is an 03 impala. ...


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.

    0996b43f802307fd.jpg enlarge_icon.gifenlarge_tooltip.gif

    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.

Mar 16, 2011 | 2003 Chevrolet Impala

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

2 Answers

Fuel Pump Regulator on 2003 Buick Century 6 cyclinder. How much trouble is it to replace?


easy,it's on the fuel rail,make sure that is the problem and not the pump,check fuel pressure before the regulator.











TIM..........

Oct 25, 2010 | 2003 Buick Century

2 Answers

Where is the fuel pressure regulator located on a 1998 chevy k1500 4.3 vortec THANKS


It under the plastic upper intake plenum connected to the CFI assembly.

be02898.jpg
Fuel Pressure RegulatorREMOVAL & INSTALLATION
(see Figure 1)
  1. Disconnect the negative battery cable.
  2. Relieve fuel system pressure.
  3. Disconnect the ignition coil.
  4. Remove the upper intake manifold.
  5. Disconnect the vacuum line to the regulator.
  6. Remove the snapring from the regulator housing.
  7. Place a towel under the regulator to absorb any spilled fuel and remove the pressure regulator from the fuel rail socket.
  8. Remove the pressure regulator from the fuel rail.
  9. Remove the pressure regulator O-ring filter, O-ring backup and O-ring and discard them.
b91f3a9.jpg

Fig. 1: Exploded view of the pressure regulator assembly-MFI systems


To install:
  1. Before installing the O-rings, lubricate them with clean engine oil and install them on the regulator inlet as a complete assembly.
  2. Install the snapring retainer into the slot on the regulator housing.
  3. Connect the vacuum line to the regulator.
Ensure that the retainer is properly seated in the slot in the regulator housing. Pull on the regulator to make sure that it is properly seated.
  1. Connect the negative battery cable.
  2. Turn the ignition ON for 2 seconds and then turn it OFF for 10 seconds. Again turn the ignition ON and check for leaks.
  3. Install the manifold plenum.

Good luck; TY for using Fixya (remember rated this post)

Apr 14, 2010 | 1998 Chevrolet K1500

1 Answer

How do i put fuel pressure regulator in my 1994 BMW 325i


Fuel pressure regulator is located on the fuel rail. 1. Remove top engine covers and fuel rail mounting bolts. 2. Disconnect vacuum hose. 3. Remove regulator clamp, noting position of regulator. 4. Pull regulator out with shop towel (full of fuel) don't lose thrust washer behind. 5. Replace with new O-rings.

Jan 04, 2010 | 1994 BMW 3 Series

1 Answer

1998 pontiac sunfire 2.2 litre fuel pressure check port


hey
You disconnect the fuel supply line at the fuel rail and tee your gauge into it.

Feb 23, 2009 | 2000 Buick LeSabre

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