pleaseeeee help!
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Junior Member
Joined: Mar 2009
Posts: 19
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From: Gladewater, TX
Car: 84 Camaro Sports Coupe
Engine: Stock 305
Transmission: 700R4
pleaseeeee help!
okay so yesterday i changed my fuel pump (in tank) and when i turned the key i heard it humming, great! well today i went to finish so i poured in about 5 gallons of gas and went to crank her up. nothing.. then i noticed that my fuel pump wasnt priming. but when i turn the key to the on position the pump just stays on and i can hear it but its not pumping gas. what could this be? would it mean that the pump is working in reverse? could my wires be crossed? any advice is accepted!
Senior Member
Joined: Apr 2005
Posts: 753
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From: Eastern Connecticut
Car: 1989 RS Camaro
Engine: 350 Carb(soon a 400)
Transmission: 5-Speed/th350
Axle/Gears: 10 bolt 3.73
Re: pleaseeeee help!
so you disconnected the fuel line and there is no gas coming out the line???
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Sounds like the wiring may be backwards. Either drop the tank again to switch the wires, or switch them at the external connector somehow.
Either that or you got a bad pump.
Either that or you got a bad pump.
Thread Starter
Junior Member
Joined: Mar 2009
Posts: 19
Likes: 0
From: Gladewater, TX
Car: 84 Camaro Sports Coupe
Engine: Stock 305
Transmission: 700R4
Re: pleaseeeee help!
thanks for the reply five7kid! so if i switch the external wires. what wires would i be switching? like what's their purpose?
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You would be switching the fuel pump power and ground wires.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The more I think about it, it's highly unlikely you switched the wires while replacing the pump. You just disconnected the electrical connector from the old pump and attached it to the new pump, right?
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Thread Starter
Junior Member
Joined: Mar 2009
Posts: 19
Likes: 0
From: Gladewater, TX
Car: 84 Camaro Sports Coupe
Engine: Stock 305
Transmission: 700R4
Re: pleaseeeee help!
yes the old pigtail plugged right in! ummm i also noticed that now my gas gauge is showing full but its not? but yes the old plug fit right in and u can hear the pump come on now but that's the thing, as soon as i turn the key to the on position it comes on but doesn't go off. it constantly humms and i believe it is suppose to stop after a couple of seconds. there is also 5 gallons of gas in the tank. im stumped
Last edited by 84camaro18; Mar 3, 2010 at 11:36 PM.
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