Fuel Sending Unit

[MLee23]

Hi Guys,

Just wondering if anyone has replaced their Fuel Sending Unit in the gas tank? My 90' GT's gas gauge isn't working so I figured I'd replaced the FSU...Can it be done without dropping the tank? The stock fuel pump is still in the tank, so I figure if I gotta drop the tank, then I'll replace the pump as well.

 

[Nova]

you have to drop the tank. and do both at once. the cheapest place i could find the sending unit was laurel mountain mustang. thinking it was around 65 shipped. half the price of the local parts store. and yeah, i did a walbro 255 at the same time, and a fuel filter. just try to have it pretty empty, have a buddy help you. get it up reasonably high on jackstands and just bench press it. much easier with 2 people.

 

[allballsmustang]

Hi Guys,

Just wondering if anyone has replaced their Fuel Sending Unit in the gas tank? My 90' GT's gas gauge isn't working so I figured I'd replaced the FSU...Can it be done without dropping the tank? The stock fuel pump is still in the tank, so I figure if I gotta drop the tank, then I'll replace the pump as well.

cant do it with the tank in...i think i've probably had my tank out bout 3 times for various reasons...its very easy... but yes, i def recommend replacing the pump while your in there... the whole job is very straight forward...my only other recommendation is make sure they give you a new sending unit-to-tank gasket with your sending unit...mine didnt have one and i had to wait like a week till they could get me a new one cause the old one was shot...now i always check the box to make sure everything is in there... good luck, its a piece of cake

jim

 

[MLee23]

Thanks guys. Yeah, I've replaced a fuel pump before in my old foxbody, and it wasn't a tough job at all. Any suggestions on which fuel pump to go with? I've heard BBK stuff is getting to be crap, so I might go Walbro again or Holley, prolly 190lph. Once all my mods are done, I plan on being around 350HP, so the 190lph should be enough flow.

 

[LaserSVT]

I kinda like the Ford Racing one, its cheeper than the BBK or Holley but Ford parts seem to last a long time and do what they say they will They are $90 at 50Resto.com but their sending units are $83 so you would save alot by getting that from LMM.

 

[Darkwriter77]

Well, technically, you CAN do the FSU (and the fuel pump) with the tank still in place ... but it involves cutting holes in your trunk (which some friggin' retard of a prior owner did to my '86 GT 'vert ).

Dropping the tank on a Fox isn't that hard. Just run the tank down as close to empty as you dare, pump/siphon out the rest into a gas can or two, unbolt the two straps, remove the filler neck, and it pretty much slides back out. It's the process of putting it back up there that's a major PITA. It REALLY helps to have an extra pair of hands helping you out during the re-install.