Fuel pump wiring

Tiny
BOB LINTON
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
I am changing the fuel pump on my 1999 Suburban k1500. The new fuel pump has a different wiring clip on the top. The old one was set up in a cube with a grey and a purple wire on top and 2 black wires on the bottom. The new clip is set up flat with a black on each end and a grey and a purple in the middle. I assume grey goes to grey and purple to purple. Does it matter which black goes to which black?
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Wednesday, February 9th, 2011 AT 9:10 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
It shouldn't matter. The gray is the fuel pump power. The purple is the fuel gauge and the 2 blacks should be both grounds.
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Wednesday, February 9th, 2011 AT 9:26 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,990 POSTS
See below:
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Wednesday, February 9th, 2011 AT 11:43 PM

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