Question about 1999 GMC Sonoma

1 Answer

Where is the fuel pressure regulator located on a 99 GMC Sonoma?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 43 Answers

2.2 engine as your standing in front of the engine is all the way back against the fire wall on the left side under a steel plate that has 3 bolts holding it on. The one on the back of the head you can loosen and not take out.
Is there any fuel in the vacuum line going to the regulator? Will the vacuum line hold vacuum? If your answer is no and yes your regulator is ok.

Posted on Jan 06, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

daves944
  • 1050 Answers

SOURCE: rough idle,runs fine on highway

It is possible that the regulator is leaking into the intake plenum, or one of the injector lines has a bad O-ring and is doing the same thing. This was actually a big problem with this system on the 4.3L engines, but it is a little different on the 5.7. Before tearing into this this though, I think it would be a good idea to get a professional diagnosis. I would start with a compression test. The miss could be caused by low compression in one or more cylinders. The injector assembly has the regulator mounted right on the side of it and the whole assembly resides inside the intake plenum. It is not that difficult a job, requires some patience and skill, the worst part is the cost of the parts.
I've attached a picture of the injector assembly with the reg attached and highlighted

9533d3a.jpg

Posted on Mar 19, 2009

localwonder
  • 6784 Answers

SOURCE: Where is the fuel pressure regulator in a '99 mercuy cougar?

Hi, its located on the fuel rail on the left side of the engine towards the front near the throttle body.


d0a4446.jpg

Posted on May 16, 2009

  • 6982 Answers

SOURCE: fuel pressure regulator

Two places to look...if you have separate injectors for each cylinder then regulator should be at the front end of the fuel rail. If you have throttle body injection it is on the throttle body itself.

Posted on Jul 30, 2009

michigan man
  • 3533 Answers

SOURCE: Please describe the exact location

give these guys a call they sells only GM-parts Schram auto & truck parts and they should be able to tell you 1-800-292-1032 and they website is www.schramauto.com you can also stop by your local GM-dealership in the parts department and they be able to print you off pictures and diagrams showing you for the most part its under the hood in the fuses box wish you the best of luck Michigan Man.

Posted on Jan 07, 2010

  • 617 Answers

SOURCE: what is the fuel pump pressure for a vortec 4.3l

2.2L Vin 4.... 41-47 psi Ignition switch is on and fuel pump running
2.2L Vin 5 ... 55-60 psi " "
4.3L Vin W .. 60-66 psi " "
4.3L Vin X ... 60-66 psi " "

Posted on Feb 07, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the fuel pressure regulated on 1999 GMC Sonoma 4.3v6


Should be a fuel pressure regulator on one end of the fuel rail. If you don't know what you are looking for, go to parts store and ask to look at part, and they should have a parts locator chart to show you where it is.

Dec 17, 2014 | 1999 GMC Sonoma

1 Answer

Po446 code on 2002 gmc sonoma where is the evap puge solenoid


need more info if high mileage on original fuel pump check pressure because if pump is not pumping enough fuel it will not open fuel pressure regulator and will give you same issue

Feb 17, 2014 | 2002 GMC Sonoma Extended Cab

1 Answer

1996 gmc sonoma fuel volume regulator


The fuel pressure regulator is located INSIDE the intake manifold. If you are going through the work of replacing it, i strongly suggest replacing the injectors. An updated injector setup is available as the originals were very problematic.

Feb 02, 2013 | 1996 GMC Sonoma

2 Answers

Hard start on 99 GMC Sonoma 2.2 ?


You need to have fuel and spark. Check that both are present during start-up. Since the truck is an older one I would be prone to suggest, maybe you need a new fuel filter and or fuel pump. The fuel line pressure needs to be over 33psi. Test to verify. Take a look at the maintenance history. When was the last tune-up. Also if the Crank pos. sensor was failing that too could cause a hard start.Well let me know how it goes and if I can help some more.

Apr 28, 2010 | 1999 GMC Sonoma

1 Answer

My 1999 GMC Sonoma step side 6 cylinder wont start after sitting for a while. I have to ingage the fuel pump 5-8 times before it will start. Any suggestions.


Your loosing your fuel pressure in the system when you shut down the engine. You could have a leak in your fuel pressure regulator or your return fuel line check valve is worn, which is located on your fuel pump sending unit housing. The other thing also is you could have a weak fuel pump so check your fuel pressure at the shredder valve, you should have 62-65 PSI when the fuel system is pressurized (engine not running). Causes for weak fuel pump, bad ground wire from pump to frame or worn out pump and a dirty fuel filter.
Check your fuel pressure to ensure you have 62-65 PSI and check to see how fast your pressure will drop, a fast drop will indicate a leak in your system as to the fuel pressure regulator or check valve at the sending unit.
Thank you for using Fixya and good luck

Mar 25, 2010 | 1999 GMC Sonoma

1 Answer

How do i chang the fuel pressure regulator its not behind the fuel meter body is it under the intake? on a 2002 gmc sonoma ex cab.


Should be attached to the fuel rail. The fuel rail connects all of the fuel injectors. The regulator will have a vacuum line on it.

Dec 09, 2009 | 2002 GMC Sonoma Extended Cab

1 Answer

2002 gmc sonoma 4.3 eng. requires excessive cranking before starting. Fuel filter new.


Fuel pressure needs to be checked. WHile performing fuel pressure check, you should also check the integrity of the fuel pressure regulator. If you shut the engine offm, the fuel pressure should not drop. It should maintain the system pressure within about 5 psi. Also, is it worse hot or cold? If you sysle the key on and off two or three times before starting the vehicle, and then you try to start the vehicle and it starts with no delay, definately suspect a fuel pressure regulator or a fuel pump issue.

Oct 11, 2009 | 2002 GMC Sonoma Extended Cab

1 Answer

99 GMC sonoma will start with starting fluid then


The 99 GMC, when it acts up, check whether it has fuel and/or spark. It could be related to fuel pressure, available electrical power, ignition component/s.

May 31, 2009 | 1998 GMC Sierra

Not finding what you are looking for?
1999 GMC Sonoma Logo

786 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...