Question about 2003 GMC Sierra 2500HD

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How do i replace the 2003 gmc seirra2500HD fuel pump relay

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  • GMC Master
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Posted on Jan 20, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: I need to find and change the fuel pump relay on my 1993 GMC Safari. Any help?

I don't have the whole solution, but I do know that my fuel pump is in side the gas tank on my GMC Safari. Hope that helps!

Posted on May 08, 2009

Molson02536
  • 3854 Answers

SOURCE: 2003 GMC Yukon - fuel pump

Check your ECM fuse. There should be 2 fuses for your ECM. It's the ECM that controls the function of the fuel pump. Good luck friend and it's also common for the wire harness from the frame to the fuel pump to go bad due to corrosion from the bad weather we get in the winter and rainy spring and fall. 

Posted on Sep 04, 2009

  • 11173 Answers

SOURCE: 1997 Gmc Sierra fuel pump relay has no power

check fuse and fuse panel connections

Posted on Oct 29, 2009

morse008
  • 1111 Answers

SOURCE: How do you replace a fuel pump on a 2003 gmc envoy

unfortunately you will need to drop the gas tank ....you will need a jack and jack stands for safety reasons and some tools sockets - {deep-well} and screwdrivers and patience and hopefully a warm area and pliers ........if you decide to do this first i can give you more detailed assistance on what to expect as well as difficulty level etc.....a few hours i assure you a bit of difficulty depending upon your mechanical skill and health i know i had to have mine sent out as i could only get it 3/4 the way out and i have been an auto/body mechanic and suspension paint metal etc for over 34 years but my health issues restrict me from even the simplest of tasks at times i hope this helps you in making a decision and ...................ensure in fact it truly is the fuel pump 1st have you determined this yet ? a pressure test can be made for free from most parts stores and a few major repair franchises

Posted on Dec 09, 2009

honeymokey
  • 3113 Answers

SOURCE: 1998 gmc 2500 wont keep running

The anti thieft system is keeping it from running.

Posted on Dec 13, 2009

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WIRING DIAGRAMS FOR 2003 GMC ENVOY SLE,FUEL PUMP CIRCUIT


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From red light truck started sputtering and and stalled out


Hello. The GMC Sierra has an electric fuel pump so you should ensure that its fuses and relays are working before checking it. You may need to clean your fuel pump or replace it if your gas tank is not empty, but your vehicle has difficulty getting fuel. The GMC Sierra comes in a variety of styles and trim levels that can affect the replacement fuel pump you choose.

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make sure you got power to pump and the the ground is good if ok then replace fuel pump if not check fuses and relays

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Have you verified voltage at the fuse and fuel pump relay. There is one fuse in the underhood fuse box.
Let me know.
Regards,

Sep 04, 2009 | 2003 GMC Yukon XL

1 Answer

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Sounds like the fuel pump relay is bad.

May 21, 2009 | 2003 GMC Yukon Denali

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