Question about 1994 Pontiac Grand Am

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Fuel pump relay

I'm having a problem with the red fuel pump prime relay. every thing else works fine on the car but i can not get the power to the red wire going to it. it goes to the fuel pump prime connector. I've looked and looked and i can not get find anything on it please help

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  • Pontiac Master
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Well, the red wire is what you use to put power to the pump when the relay is off. Not when the relay is on.
When you turn the key switch on, you are putting power to the magnet of the relay on the dark green and white coming from the computer. The magnet closes the switch inside the relay. The orange wire powers the pump and the gray wire goes to the pump. When the switch closes inside the relay, you complete the connection between the orange and gray wires.

Posted on Jul 14, 2013

Testimonial: "yah i understand that. i was wondering what controls the red wire the "fuel pump prime connector". the one that runs for a few seconds and primes the fuel system. then it shuts off but thank you for the relpy"

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6ya6ya
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Posted on Jan 02, 2017

polarcycle
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SOURCE: 1991 pontiac 2.5 tech 4 fuel pump relay wont energize

Look for a bad fuse or relay. If both check out, most likely an ECM problem

Posted on Mar 07, 2009

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SOURCE: 2000 grand am 3.4 fuel pump wires

IF U HAVE POWER ON GRAY WIRE AND GROUND ON THE BLACK WIRE THEN THE PUMP IS BAD.THE OTHER WIRES ARE FOR THE FUEL GAUGE SENDER

Posted on May 13, 2009

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SOURCE: Trans Sport 1998 fuel problem

replace fuel pump relay.the best method to check fuel pump is check the fuel pressure with a pressure gauge tester.

Posted on May 27, 2009

mlapres
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SOURCE: I have a 1997 Pontiac Grand Prix GTP. Recently put

If you replaced the fuel pump then there is a possibility that during the job then some debris from the tank and/or filter got loose somewhere into the fuel system and is in your lines. It could even be a very tiny speck of gasket material, old or new.

Posted on Jun 20, 2009

  • 553 Answers

SOURCE: 1988 firebird formula 5.0 tpi car just died

It sounds like you may have burned out your fusable link. It's a special wire that comes off the starter solennoid and is designed to burn off in the event of an overload. DO NOT REPLACE IT WITH REGULAR WIRE, THIS IS A LEADING CAUSE OF CAR FIRES.
You will want to check for what caused the overload condition that caused the fusable link to burn out in the first place.

Posted on Jun 21, 2010

Testimonial: "never thought of that great idea ill replace it and let u know thanks alot appreciate your time"

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