2004 Pontiac Grand Am Logo
Posted on Dec 09, 2008

How to replace a fuel pressure regulator

2004 pontiac grand am

1 Answer

Anonymous

Level 1:

An expert who has achieved level 1.

Corporal:

An expert that has over 10 points.

Mayor:

An expert whose answer got voted for 2 times.

  • Contributor 3 Answers
  • Posted on Jan 09, 2009
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

Corporal:

An expert that has over 10 points.

Mayor:

An expert whose answer got voted for 2 times.

Joined: Jan 09, 2009
Answers
3
Questions
0
Helped
5979
Points
12

Is it the 3400 v6 or the 2.2l four cylinder? If it the v6 then what you have to do is first know where it is. It located on the end of your fuel rail on the driver side of the car. There will be a plastic hose coming off the top of the regulator, unplug it. You then have to undo your fuel line that runs into the bottom of the regulator. You have to use a wrench to get it off, not sure what size it is. Once you undo the fuel line the next step is to unbolt it from the fuel rail. There will be two screws that run in the side of the fuel pressure regulator that are facing the driver side of the car and are threaded in towards the passenger side of the car, just undo those two screws and the regulator should come off. Just repeat the process backwards to put it back on.

4 Related Answers

ZJLimited

ZJ Limited

  • 17989 Answers
  • Posted on Feb 08, 2010

SOURCE: how to change a fuel pressure regulator in a 1997

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.


44dcbf8.jpg 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.

4ecb713.jpg

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).

Ad

Anonymous

  • 87 Answers
  • Posted on Mar 02, 2011

SOURCE: were is the fuel pressure

The regulator is located on the fuel rail, i think on this model it is on the right side toward the firewall.

psds4

pat murray

  • 293 Answers
  • Posted on Nov 02, 2008

SOURCE: how to replace a fuel pressure regulator

the fuel pressure regulator is on the end of the fuel rail it is held on by a torx screw relieve the fuel pressure using the schrader valve on the fuel rail remove regulator holding screw and replace new regulator be carful not to damage o-rings on new regulator

Randy Ohler

  • 14585 Answers
  • Posted on Nov 12, 2010

SOURCE: 2004 pontiac grand am replaced O2 sensor, spark

Idle air control motor(IAC). EGR valve. And vacuum leaks to include the brake booster and if you have a plastic intake, that too. this is a start there are other things that will have the same symptoms. let me know
Randy

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

I have 2004 Pontiac Grand Am. I changed fuel pump injector pressure sensor and fuel filter. The car won't start after been sitting for 4 or more hours.

Question edited for clarity.
Question moved to model category.

Jeff, our Pro Auto Tech and Electronics Wizard gives the best answer.

Jeff Armer Nov 27, 2022

injector pressure sensor ???? It doesn't have anything like that, it has a fuel pressure regulator - vacuum operated . Hook up a scan tool and check for codes or take it to a qualified repair shop. Quit trying to play auto mechanic.
0helpful
1answer

2006 Pontiac Grand Prix where is my fuel regulator valve

It's fuel pressure regulator .
The fuel pressure regulator attaches to the fuel module assembly. The fuel pressure regulator, located in the fuel tank, is attached to the fuel sender assembly. The fuel pressure regulator keeps the fuel available to the fuel injectors at a regulated pressure
0helpful
1answer

I have a 2004 Pontiac Grand Am I changed out the fuel regulator and now it's idling a little high. How could I adjust it

There are no adjustments you can make . Idle is controlled by the PCM - engine computer via the IAC - idle air control valve. Changing the fuel pressure regulator shouldn't have changed the idle at all . So , what did you do wrong .
0helpful
1answer
0helpful
1answer

What cause fuel sensor to go out

GM vehicles used a vacuum sensor. If the hose that connects to it is cracked or off it will do this. Located on the intake manifold.
0helpful
1answer

Have a 2004 grand Android v6 replaced fuel pump Android fuel filter. The next thing must be the fuel pressure regulator were is it Android were do I check the pressure at Android were is the fuel rail...

the fuel test port is right behind the power steering pump. You will see a black plastic cap right behind one of the power steering lines. Remove the cap and you will see the schreader valve.

The fuel pressure regulator is on the drivers side of the engine next to the throttle body right where the throttle cable is attached. there will be a vacuum hose on the top of it a steel line coming out of the bottom and there will be a single bolt holding it to the fuel rail. Remove the vacuum hose from the top, start the engine, and see if fuel comes out. If it does than the regulator is leaking and needs to be replaced.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

1helpful
1answer

Were is the fuel pressure regulator on my 2004 grand prix GTP

The regulator is located on the fuel rail, i think on this model it is on the right side toward the firewall.
0helpful
2answers

My 04 Grand prix gt will start then after sitting a while will not start i have to push the gas for it to stay started i just got this car and it only has 56k miles on it.

A fuel pressure test should be performed as I suspect the fuel pressure regulator is leaking fuel into the vacuum line causing the engine to flood on restart.
A drop in fuel pressure would confirm this.
1helpful
1answer

How to replace a fuel pressure regulator

the fuel pressure regulator is on the end of the fuel rail it is held on by a torx screw relieve the fuel pressure using the schrader valve on the fuel rail remove regulator holding screw and replace new regulator be carful not to damage o-rings on new regulator
Not finding what you are looking for?

5,262 views

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Brad Brown

Level 3 Expert

19187 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...