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Fuel pump wire color

Wireing new fuel pump onto 98 chevy but wire colore dont mach and lost the paper i have on one side ornge/black wire gray purple black and on the wires from the truck i hve 2 blacks one is thicker purple/ white and gray what wires go to what wires if any one can help

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 625 Answers

SOURCE: Oxigen sensor 4-wires /colore of signal wire

most of the times the signal wire is the black one,
but is definly not the red or the red with stripe,
so is eithr the white or the black.

Posted on May 28, 2008

66 chrgr
  • 1011 Answers

SOURCE: 99 silverado fuel pump

GRAY IS FUEL PUMP, PURPLE IS FUEL GAUGE, BLACK IS GROUND,ORANGE WITH BLACK GOES TO COMPUTER.GREY WIRE WITH KEY ON WILL BE BATTERY VOLTS FOR TWO SECONDS UNLESS CRANKING ENGINE OVER.PURPLE WILL REMAIN ON WITH KEY LESS VOLTS THOUGH

Posted on Jan 30, 2009

Monster80
  • 460 Answers

SOURCE: 89 cavalier fuel pump

Purple is your sending unit which is the fuel gauge,Gray is your fuel pump hot wire(positive),Black isyour body ground and white is ground.

Posted on Apr 02, 2009

  • 1 Answer

SOURCE: 1998 Suburban Fuel Pump wiring harness

if its the correct harness then yes... i would follow colors.conecting the thinner black to the orange/black.

i have built and repaired wire harness' for four winds rv for 5 yrs now and previously gm cars for 4 yrs

Posted on Apr 27, 2009

polarcycle
  • 1392 Answers

SOURCE: Replace oxygen sensor for 4cyl 01" Accord - wires don't match

Don't put a universal oxygen sensor in your vehicle. You will have nothing but problems, and you will have to put an OEM one in it anyway.

Posted on May 30, 2009

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1 Answer

Fuel pump wire color


The gray wire goes from the pump relay to the pump. The black white wire is the ground for the pump. The purple is for the gauge on the dash and the black is ground for the sending unit. I don't list a white wire being used.
If the colors on the truck don't match the tank, you'll have to test them to verify each circuit.

Aug 08, 2013 | 1998 Chevrolet K1500

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The wire colors dont match on my new fuel pump to my wireing harness on the car


Must have got a universal pump,best to take back and get a oem that just plug in,no wire cutting and guessing?????

Feb 16, 2013 | 2000 Buick LeSabre

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Need color code on new connector


Just did my fuel pump on the 2001 isuzu rodeo. Well here is what you need to do about the different wire colors. First disconnect your negative battery. Drop the fuel tank and replace pump. Remember to have a splice kit in hand. Ok now here is how you connect the different colored wires. Black goes with black. Gray goes with black and orange wire. Purple goes wit blue and yellow. And the last wires goes together. I hope this helps.

Aug 12, 2012 | 2001 Isuzu Rodeo

1 Answer

I just replaced the fuel pump on my 98 silverado z71 and the harness that came with the new pumps wiring is different. the old harness has four wires colored gray on b, purple and white on a, two black,...


I may not be of much help.
According to autozone online, 96-98 model trucks should have - -
gray from relay to the pump
black / white ground for pump
pink - black for gauge ground
pink to gas gauge
You should be able to jumper the pump relay and look for a hot for the pump. You should have two grounds, I doubt it makes much difference which you use for the pump. And then you should have a hot for the gauge with the key on and the relay disconnected.

Jul 11, 2012 | Chevrolet Cars & Trucks

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Honda passport fuel harness


If it is the correct fuel pump - where it unplugged, it should just plug in where the old one did.

Mar 14, 2012 | 1998 Honda Passport

1 Answer

I have a 98 grand marquis. im looking for the fuel pump reset switch. where is it located and what does it look like? and also im looking for the power wires to the fuel pump that come out through the...


it will be in the trunk you may have to pull pack the liner to see it. it will be to the rear of the wheel wells.

it will be a black piece with a red button. press the button down to reset

there should be a dark green with yellow with and a pink with black wire at the inertia switch. the dark green is power from the relay and the pink is power to the pump. there will be another connector on the passenger side of the fuel tank. the wire color to the pump will change at this connector.

Jul 22, 2011 | 1998 Mercury Grand Marquis

1 Answer

Fuel level sensor ground crossed with fuel pump ground on a 98 chevy truck. what color are these ground wires?


i think the ground wire going to the gauge is black/white stripe and solid black is pump ground the bigger gauge wires r pump wires and the smaller gauge wires go to the fuel guage

Mar 16, 2010 | 1998 Chevrolet C1500

1 Answer

What wire is the power for the fuel pump at the pump


there were some production changes in 1998 to the fuel pump wiring, so the connector can have 2 diff fuel pump power wire colors, the most common color is grey, but the the harness at the tank has just 4 wires, the larger wires at the four wire oval connector are the fuel pump 12 Volt and the other is the ground, it is black, the other 2 wires are the sending unit, also the connectors ( Chevy factory service bulletin) on this year had a problem with burning, so if you get a new fuel pump always replace the 4 wire fuel pump connector. I have attreached a picture of the connector
2ea264c.jpg

Jun 30, 2009 | 1998 Chevrolet C1500

1 Answer

2001 Chevrolet Impala 3.8 fuel pump wiring diagram


The wires should be grey, orange and black, purple, and a black wire. The purple goes to purple, grey to gray. The orange and black goes to the small black wire on your car harness and the black goes to the bigger black.

Apr 30, 2009 | 2001 Chevrolet Impala

1 Answer

99 silverrado chngd fuel pump n still no start no noise from pump


im not sure of the color wires that should be powered but have you checked the fuel pump relay under the hood? also check that you have a good ground at the pump dont check just the positive voltage check for negative (ground) also

Jan 28, 2009 | 1999 Chevrolet Silverado 1500

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