Question about 2002 Chevrolet Suburban 2500

1 Answer

Intermittent stalling like it is starved for fuel. WHen I open the gastank cap most of the time it will start right up. If not, then banging on the fuel tank to free up the fuel pump works. It is at the dealership now, they had a number of codes come up and suspect it is the transfer pump between the two gas tanks, a $1300 repair. I still suspect it is a vacuum in the tank and gas lines and concerned that this expensive repair may not solve the problem. Any ideas or suggestins?

Posted by on

  • denisokeefe Sep 02, 2010

    the pump they want to replace is the transfer pump, not the fuel pump in the tank. what controls the vacuum level or fuel pressure ( other than the fuel pump)?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Chevrolet Master
  • 6,826 Answers

If you have to bang on the tank to get the pump going, I'm thinking that it is a fuel pump. If the expensive repair doesn't prove to solve the problem, I would think that there would be recourse for the less expensive repair (the vacuum in the tank and gas lines).

Actually, the fuel pump is the likely culprit, in my opinion based on what was written about the problem, unfortunately.

Good luck on the repair.

Posted on Sep 02, 2010

  • Duane Wong
    Duane Wong Sep 02, 2010

    You're right, the transfer pump is different than the fuel pump.
    The following describes the fuel pressure regulator on the different engine sizes of the Suburban.

    I'm not sure why you have a vacuuum in the tank vs. actual pressure, but I suspect the transfer pump between the two gas tanks is the culprit since codes come up for that.

    I might consider asking them to guarantee that their work will solve the problem before signing on the dotted line.

    Removal & Installation
    4.8L, 5.3L & 6.0L Engine
    To Remove:

    Three styles of fuel pressure regulators and fuel rails will be used in this model year. Each regulator has a different "footprint" that consequently changes the size of the receiving port in the fuel rail. The regulator retaining clips are specific to each rail-regulator design and cannot be interchanged.

    1. Remove the engine sight shield.
    2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
    3. Clean the fuel pressure regulator retainer and the surrounding area.
    4. Remove or disconnect the following:

      • Fuel pressure regulator vacuum line.
      • Fuel pressure regulator retainer.
      • Fuel pressure regulator.

    5. Remove the following parts from the fuel rail:

      • Backup ring (10)
      • Regulator Seal O-ring (11)
      • Regulator filter (12)
      • Regulator seal O-ring (13)

    To Install:

    1. Make sure the NEW fuel pressure regulator retainer is the right one.
    2. The tabs (1) are used on the straight vacuum port retainer (2), and the E85-straight vacuum port retainer (3).
    3. The angle vacuum port retainer (4) has no tabs.

    4. Install the following parts onto the fuel pressure regulator (9).

      • Backup ring (10)
      • Regulator seal O-ring (11)
      • Regulator filter (12)
      • Regulator seal O-ring (13)

    5. Lubricate the fuel pressure regulator O-rings with clean oil.
    6. Install the fuel pressure regulator and retainer.
      Whenever the fuel pressure regulator is removed from the fuel rail NEW O-rings and a NEW retaining clip should be used on reinstallation.

    7. Connect the vacuum line.
    8. Tighten the fuel filler cap.
    9. Use the following to inspect for leaks:

      • Turn ON the ignition, with the engine OFF, for 2 seconds.
      • Turn OFF the ignition for 10 seconds.
      • Turn ON the ignition, with the engine OFF.
      • Install the engine sight shield.

    8.1L Engine
    To Remove:

    Fuel pressure regulator vacuum line

    1. Before servicing the vehicle refer to the precautions at the beginning of thjs section
    2. Remove the fuel injector sight shield as needed
    3. Relieve fuel system pressure (See: Fuel Pressure Relieving)
    4. Disconnect the fuel pressure regulator vacuum line (A)

      8.1L Fuel pressure regulator retainers

    5. Clean any dirt from the fuel pressure regulator retainer and the surrounding area
    6. Remove the fuel pressure regulator retainer (I)
    7. Remove the fuel pressure regulator (H) from the fuel pressure regulator housing

    To Install:

    8.1L Fuel pressure regulator retainers

    1. Install or connect the following:

      • Backup ring (J) on the fuel pressure regulator (H)
      • New large O-Ring (K) on the fuel pressure regulator
      • Regulator filter (L) on the fuel pressure regulator
      • New small O-Ring (M) on the fuel pressure regulator

    2. Lubricate the fuel pressure regulator large O-Ring and the small O-Ring with clean engine oil
    3. Push the fuel pressure regulator onto the regulator housing on the fuel rail
    4. Install a new fuel pressure regulator retainer (I)
    5. Install or connect the following:

      • Fuel pressure regulator vacuum line
      • Negative battery cable

    6. Tighten the fuel filler cap
    7. Inspect for leaks using the following procedure:

      • Turn on the ignition with the engine off for two seconds
      • Turn off the ignition for 10 seconds
      • Turn on the ignition with the engine off
      • Inspect for fuel leaks

    8. Install the fuel injector sight shield
    9. Road test the vehicle to check performance



1 Suggested Answer

  • 2 Answers

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

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.
New users get to try the service completely Free afterwhich it costs $6 per call 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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Fuel pump relay wiring diagram

hot engine or cold or both??????????
and #1 all time question on topic, can you prevent the stall with a fast acting right foot.. A KEY CHECK and FACT !
Is it totally intermittent, and runs perfect other times,,,, gee, just a hint here.....???????? if yes, #2 below is probably ok.

can be lots of things, that cause stalls (over 50), not just the fuel pump.
we check fuel pressure if at spec. then i forget that. (easy huh?)
let me make a list . (works on all gas cars)
  1. lost 12vdc power to EFI system (dash lamps go dead?) loose fuse? dead battery, battery lugs filty, etc.
  2. bad engine compression , can happen hot,
  3. lost spark , ever give it a 60k mile tuneup? test spark using SOP ways and means, google it.
  4. bad fueling (note how its last as you can NOT burn fuel with above bad. period. We learn to read spark plug tips for clues.
  5. bad fueling too much is flooding or starving.
  6. EGR valve stuck open will stall any engine , or near stall.
  7. there are up to 50 causes but the above MACRO , covers most.
ever think to use a scan tool and scan it for errors at the stall.
a scan tool can be had for $9 buck.s
or rent one, or barrow one, many auto stores lend them.
in the hope you will start buying parts like crazy, lacking and FSM
and the reading these tests. in said manual.

Apr 10, 2014 | 2001 Suzuki Aerio

1 Answer

Problem starting after fill with gas

no year?
this car is a Daewoo car, in Suzuki snake clothing. it is. and are trouble cars.
correlation is not always cause. (its way more complex)
Im answering for Cranks robustly but will not start. RIGHT?
does car start with gas cap removed or loose.?
NO, then its not the cap, PERIOD.
the cap will fail not at fill ups, as that makes you remove it
this breaks the seal and with the wrong cap lets in the air.
and car start. the wrong cap with no vacuum breaker
causes lost power and stalls driving. (lost fuel pressure)

so why try to guess. why not do the simple tests. done now for 100 years. on all engines (spark , otto cycle engines)
1: check for spark. ????
2: check for flooding or lost fueling.
spark tips (yes, remove and look) are soaked in fuel dripping
yup , flooded,
to unflood it crank with throttle wide open, called WOT. this cuts fuel
and flooded cars starts, (operators guide tells this......)
if spark tips dry, then its starving for fuel
so add some. ( a test)

this page works for most cars made,

see what scotty does....... a video presented there

Mar 24, 2014 | Suzuki Forenza Cars & Trucks

1 Answer

Car dies after it warms up, no pressure in radiator when i remove cap, and acts like it's starving for gas

Some of the information does not correlate.

If there is no Pressure, then you Radiator Cap is Bad

Stalling or Starving for Gas can be a Fuel Pump or Air Filter

Remove the Air Filter and see what happens.

Test the PRESSURE of the FUEL System

Apr 10, 2013 | 1993 Dodge Dynasty

1 Answer

Starves for fuel on acceleration and wont idle right

Gas problem, likely. Have your fuel pressure tested. Fuel pump or filter may be the problem.

Dec 31, 2012 | 1997 Dodge Grand Caravan

3 Answers

When i've been driving for a while, it stalls out and won't start-acting like it's starving for fuel. after it sits and cools down for a couple of hours then it starts and runs fine. Fuel pump??

Change the fuel filter. It is usually located passenger side along the frame rail ahead of the rear tire. You're right, it's starving for gas & because of this your fuel line is heating up & causing vapor lock. This is why your car won't start when hot. Good luck!

Jul 27, 2010 | 1998 Ford Taurus

2 Answers

Van stalls intermittently. When we take it to a garage, they let it idle for an hour and it won't stall. We have already replaced fuel pump.

did they check that the filter was clean if filter is partly chocked itl allow enough for tick over but starv the engine with open thottle

Jul 07, 2010 | 2000 Ford Windstar

1 Answer

03 bonneville hard starting,stalls intermittently.seems like starving for gas at times. changed fuel filter and added several fuel injector cleaners

Hello! There are a couple of possibilities for your issue:

1) Fuel pump relay - this tells the fuel pump resistor to turn the fuel pump, either in high or low mode.
2) Fuel pump resistor - see above (very common issue)
2) Faulty fuel pump

Hope this helps and thanks for using FixYa!

Oct 01, 2009 | 2003 Pontiac Bonneville

1 Answer

Very hard starting, also stalls intermittently. seems like starving for gas at times

Probably is starving for fuel. Replace your fuel filter. Most cars it is near the rear passenger tire. Follow the gas lines near the rear. Most of the time they are long as your hand and round, and black. Almost guarantee this is your problem.

Oct 01, 2009 | 2003 Pontiac Bonneville

3 Answers

My 97 nissan altima is occasionally stalling out when I come to a stop. When this does happen it acts as if the engine is starving for fuel as I start it and for 10 or 15 minutes afterwards - it studders...

This happened to my 1997 Altima GXE a couple years ago. The coolant sensor is bad ($30-40 part). The coolant sensor is reading that the temp is cool on a warmed up engine and actually causes the engine to run rich (thinking it is a cold engine). The problem is intermittant and happened at the worse times.

Jul 29, 2009 | 1997 Nissan.5 Altima

Not finding what you are looking for?
2002 Chevrolet Suburban 2500 Logo

Related Topics:

110 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8522 Answers

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

Answer questions

Manuals & User Guides