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03suburban fuel pump wiring


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andyrevious
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Feb 22, 2013, 4:21 PM

Post #1 of 6 (416 views)
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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


Feb 22, 2013, 5:12 PM

Post #2 of 6 (388 views)
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Re: 03suburban fuel pump wiring [In reply to] 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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(This post was edited by Hammer Time on Feb 22, 2013, 5:14 PM)


andyrevious
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Feb 22, 2013, 6:19 PM

Post #3 of 6 (379 views)
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Re: 03suburban fuel pump wiring [In reply to] 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
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Feb 22, 2013, 6:23 PM

Post #4 of 6 (377 views)
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Re: 03suburban fuel pump wiring [In reply to] 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


Feb 22, 2013, 6:34 PM

Post #5 of 6 (369 views)
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Re: 03suburban fuel pump wiring [In reply to] 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


Feb 23, 2013, 12:00 AM

Post #6 of 6 (349 views)
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Re: 03suburban fuel pump wiring [In reply to] Sign In

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






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03suburban fuel pump wiring


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