'93 F150, 302 Fuel injected. Dual tanks.
The pump in my rear tank is getting really loud! Normally you have to be standing next to the tank to hear it. Now I can hear it humming with the windows up and engine running. Front tank is as quiet as always. Impending failure???? 'Mo

 

I would say so. On the my old '93 302, it got really loud a couple weeks before it completely failed.

 

Not necessarily. Mine was loud for over a year. Then it got quiet for several years. It still works fine. If you're curious, put a fuel pressure gauge on it. For more info, click my black Bronco below & look in the EFI Fuel Pump album. The diagram of the FDM includes instructions on testing pressure.

 

Thanks Steve,
I'll check the pressure. I get paranoid when something changes sound from what is "normal"!! 'Mo

 

My experience is similar to Steves. At one point I could hear my front pump, now I can't. Now I can hear the rear pump sometimes.

Either way, if you have two tanks you're covered. I usually "rotate" my tanks already, not filling both unless I have a trip or heavy hauling/towing that will consume a lot of gas. I just fill one tank once the other gets down to 1/4 tank or so. That way I work both pumps on a regular basis, and always have a reserve if I have a busy day and don't want to stop for gas.

 

My rear pump is loud too.
Been that way about 3 years now.
Drives me bonkers, but if it ain't broke, I ain't fixin.
I got too much else to worry with and a front fuel pump as a backup.

It gets quiet now and again, but is loud more often than not.