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03suburban fuel pump wiring


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andyrevious
New User
andyrevious profile image

Feb 22, 2013, 2:21 PM

Post #1 of 6 (733 views)
03suburban fuel pump wiring Sign In

i have an 03 suburban that someone installed a 03 silverado fuel pump into and when they did that they had to change the wiring harness to work with the pump. i need to know which way the wires go to work the oem 2003 chevrolet suburban fuel pump can anyone help me please


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 22, 2013, 3:12 PM

Post #2 of 6 (705 views)
Re: 03suburban fuel pump wiring Sign In

The pumps are the same. The plug is changed on every new pump because there was a design change. Just match the wire colors.







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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Feb 22, 2013, 3:14 PM)


andyrevious
New User
andyrevious profile image

Feb 22, 2013, 4:19 PM

Post #3 of 6 (696 views)
Re: 03suburban fuel pump wiring Sign In

thank you there is just one more problem i have the oval plug but my wire colors are like the square plug. can i use the square plug colors but put them in the oval plugs order


andyrevious
New User
andyrevious profile image

Feb 22, 2013, 4:23 PM

Post #4 of 6 (694 views)
Re: 03suburban fuel pump wiring Sign In

the colors are big black, big gray, small black, small purple the large gray and black would be the voltage and the ground right and the fuel level sensor is purple and small black is low reference


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 22, 2013, 4:34 PM

Post #5 of 6 (686 views)
Re: 03suburban fuel pump wiring Sign In

Gray ... fuel pump feed
Lg Black .... fuel pump ground
Purple .... fuel gauge
sm black ... fuel gauge ground.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Sidom
Veteran / Moderator
Sidom profile image

Feb 22, 2013, 10:00 PM

Post #6 of 6 (666 views)
Re: 03suburban fuel pump wiring Sign In

Low reference is GMs way of saying "ground".......Crazy






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