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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 12-04-2002, 01:05 AM
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Fuel pump question

My fuel pump is somewhat loud. From the inside, you can hear it quite well, like a constant pitch (buzz, whatever). I was told that it happens, especially on the Jeep Wranglers, and that I shouldn't be concerned as long as it works fine. Avoid riding on low gas level in the tank, and that's it. I was also told that it happens due to the pump not being so firmly connected, so it vibrates a bit, etc.
Is that true? Is the gas pump on the outside of the tank, somewhere that can be reasonably easy accessible, so I could get to it & tighten it (or put some silicone around) or something similar?
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post #2 of (permalink) Old 12-04-2002, 05:42 AM
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Re: Fuel pump question

If you have a YJ, and it has the stock pump, then it is in the tank. And if it makes that much noise that you can hear it all the time I might think that you have a problem. But hey if it works, and you are not having any problems.... Run it.
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post #3 of (permalink) Old 12-04-2002, 07:07 AM
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Re: Fuel pump question

1. These pumps are shock protected inside a canister.
2. Transfered vibration is kept to a minimum, both to the tank from the pump and from the pump to the tank.
3. The pump should not make noise... simple as that.
4. Once it starts to make noise then it's time to change the pump assembly.
5. It's dying and screaming <font color="red"> CHANGE ME </font color>.
6. You can do it now in the garage where it's nice and safe or you can do it when it is less comfortable... along side of the road or trail.
7. This is a chance to learn a little preventative maintance.
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post #4 of (permalink) Old 12-04-2002, 07:16 AM
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Re: Fuel pump question

I didn't think it was all right that way. I know it needs a change, I just wanted to know how bad it is.

</font><blockquote><font class="small">In reply to:</font><hr />
You can do it now in the garage where it's nice and safe

[/ QUOTE ]

I completely agree. Do you know any post(s) anywhere (or docs, for that matter) about how it is done? Or is it as simple as "buy a new tank" &amp; "throw the old one away" stuff?
post #5 of (permalink) Old 12-04-2002, 07:19 AM
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Re: Fuel pump question

1. Drop the tank.
2. Remove the sender assembly.
3. Install the new sender assembly.
4. Reinstall the tank.

It's really as simple as that. It's very straight forward. It's one of the easiest Jeep repairs to do... just be sure you've drained the tank.
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post #6 of (permalink) Old 12-04-2002, 07:21 AM
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Re: Fuel pump question

</font><blockquote><font class="small">In reply to:</font><hr />
the sender assembly

[/ QUOTE ]

Do I look for that part under that name?
post #7 of (permalink) Old 12-04-2002, 07:27 AM
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Re: Fuel pump question

I could hear the pump running in my 91YJ when I bought it with 105k, 80k later I had to replace it. [img]images/graemlins/frown.gif[/img]
I can hear the new one running too. [img]images/graemlins/grin.gif[/img]
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post #8 of (permalink) Old 12-04-2002, 07:37 AM
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Re: Fuel pump question

That pump may be avaliable alone... the price is low for an assembly.

Four Wheel Drive Pump

NAPA

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post #9 of (permalink) Old 12-04-2002, 07:41 AM
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Re: Fuel pump question

Thanx a lot!!! [img]images/graemlins/laugh.gif[/img] [img]images/graemlins/laugh.gif[/img] [img]images/graemlins/laugh.gif[/img]
post #10 of (permalink) Old 12-04-2002, 07:49 AM
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Re: Fuel pump question

I have a 4.0L powered 1982 CJ-7 with a YJ tank, pump and sender all purchased from 4WDH. From the beginning, in hot weather, the pump buzzed constantly. It would be quiet in the mornings but as the day got hotter the noise increased. In the winter all I hear is a slight hum from it. This has been going on for 2 years now and I carry a spare pump and have a removeable cover in the floor over the sending/pump unit.

GaryM
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