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My 2004 Pontiac grand prix fuel pump is not getting fuel to my injectors, I changed it , still no fuel , there are two wire plugs on top of the fuel pump housing one is getting fire one is not , should they both have fire after all one is for the float and the other for the fuel pump , thanks for any advice

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  • Cars & Trucks Master
  • 14,185 Answers

Check your fuel pump relay.Here's what it look's like.

Posted on Nov 25, 2013

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First, have you checked your fuel filter, a very common and unchecked problem, as for the wires, you will need a good service manual, your fuel gauge is through your body computer so you will need to know voltages and resistances. I am old school and try to stay away from computers

Posted on Nov 25, 2013

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  • Cars & Trucks Master
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The connector with the gray wire and the black wire is for the pump-gray wire is power wire, black wire is ground. Check the gray wire for power, when the engine is cranking. If the gray wire has power then, and no pump, check the black wire for a good ground. If ground is good, the pump has to come back out for inspection- it is not turning on as it should.
If no power on the gray wire when engine is cranking, check fuse #22-a blue 15amp fuse for the fuel pump circuit. If fuse is good, you will need the wiring checked for the fuel pump relay, because it is not turning the pump on as it should. The computer sends a signal to the relay to turn it on and send power to the pump.

Posted on Nov 25, 2013

6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: 1991 pontiac grand prix se won't start

Probably need the computer reset. All these cars now days are set up for the dealer to screw you. The fix yourself is about history

Posted on Mar 16, 2009

dennymulford
  • 1055 Answers

SOURCE: is the fuel pump removed from the trunk of a 2001 grand prix

no you must drop the tank

Posted on Mar 05, 2009

polarcycle
  • 1392 Answers

SOURCE: 1999 pontiac grand prix gt 3.8L v6 cranks wont start

Is the security light on? If you have spark and fuel, it should run. Any codes? Could be bad crank sensor or cam sensor.

Posted on Mar 07, 2009

  • 4 Answers

SOURCE: how to change fuel pump in 2001 pontiac grand prix

In the trunk behind the seat, pull back the carpet. there is an access panel in floor. take that off, and you have direct access to the pump assembly, disconect the three hoses and the pigtail, take off the lock ring and pull it strait up. you can only buy the whole assembly so its just swapping them out and putting everything back together.

Posted on Apr 30, 2010

  • 1757 Answers

SOURCE: GM 3.8 liter supercharge v6 firing order 2000

For the 2000 Pontiac Grand Prix:
I do not know if you have the 3.1L V6 or the 3.8L (including Super Charger) V6; however I have included both below...

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
......(back).......
'...1....3....5...'
____________
'...2....4....6...'
.......(front)
Ignition Coil Connections:
.'.5..2.'..'.3..6.'..'.4..1.'


For the 3.8L V6 including the Super Charger:
Firing Order:
1-6-5-4-3-2
Cylinders:
.....(back).......
'...2....4....6...'
____________
'...1....3....5...'
......(front)
Ignition Coil Connections:
(back)
o 6
o ---3
___
o 2
o ---5
___
o 4
o ---1
(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact us at FixYa.com!

Posted on Oct 08, 2010

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