Testing a fuel pump

[Coreshot]

I am having trouble witth the fuel pump on my toy. It's an e2000 mounted on the frame rail, since I have a different from stock fuel tank. I pulled the pump out, and wanted to test it to make sure it was good. I ran a lead to both sides of the battery, but no luck. This should work shouldn't it? There are only two wires going to it, so it's not overly complicated.

The truck has sat for 3 years, but when it was parked the pump was fine. Will they go bad from just sitting? Help!!

 

[Jinx]

so no fuel pressure or low fuel pressure...

 

[Coreshot]

the pump wont even kick on.

 

[Rusted]

Does the pump get its ground from one of those two wires? Or does it get the ground from being mounted on the frame?

 

[Coreshot]

Does the pump get its ground from one of those two wires? Or does it get the ground from being mounted on the frame?

The pump's mounted to the frame, but surrounded by a foam insulator, so one of the wires has to be ground.

 

[Jinx]

It seems like that fuel pump has a wire from the ignition going to the positive side of the pump, the other connector is the ground should be a solid, clean ground.

I would check for juice at the positive, then check to see if the ground is clean... Sitting for 3 years could change things...

 

[bryson]

I installed the same pump recently, and it is definitely a simple 2 wire hookup. One hot, one ground. The pump should work like you tested, so I'd say it is toasted... Apparently they can go bad just sitting there. I'm pretty sure your truck is mad at you for ignoring it for so long.

 

[Jinx]

I'm pretty sure your truck is mad at you for ignoring it for so long.

i agree,

 

[Coreshot]

I installed the same pump recently, and it is definitely a simple 2 wire hookup. One hot, one ground. The pump should work like you tested, so I'd say it is toasted... Apparently they can go bad just sitting there. I'm pretty sure your truck is mad at you for ignoring it for so long.

I'm trying to make it up to her.

 

[Jinx]

I used to have a back up pump that you could throw in to see if it is wiring or pump, but those days are gone... Sorry...

But you have a voltage tester don't you?

 

[Coreshot]

I used to have a back up pump that you could throw in to see if it is wiring or pump, but those days are gone... Sorry...

But you have a voltage tester don't you?

Yeah. Whats weird is I didn't get any juice at the pump, but then I tested the pump itself and get nothing.

 

[Coreshot]

Well, the pump was definitely bad, the new tested as I thought it should. Now hopefully there aren't further problems once I get the new pump plumbed in. I don't have enough line to do it today, because I had to cut the old lines and now I don't have the length I need. So I'll have to wait until tomorrow when I can get some more.