Fuel Guage bias error

[magnu001]

I have a '93 F-350 crew cab, long bed, 4X4 with the naturally aspirated 7.3 diesel and dual fuel tanks. The engine starts to sputter as if out of fuel when the fuel guage reads 1/4 tank. It does this regardless of which tank I'm running on.

Either the guage has a bias error, or the fuel system can't pick up fuel below 1/4 tank for some reason.

Does anyone have any experiance with this problem and how to solve it?

[CoGo]

I'm having the same problem in my 1993 F250 IDI 4X4!

[magnu001]

I believe the gages are working fine because I checked how much fuel I was able to add after "running a tank out". I was not able to add the full capacity according to the owners manual (I was 5 gallons or so off.), so I suspect that there is something wrong with the fuel pickup that is not allowing access to all fuel in the tank.

[magnu001]

CoGo said, "Ok Thanks for the info. I've just got accustomed to not letting it getting below a quarter of a tank. I guess it's not that bad because it doesn't allow any trash to get into the injector pump".

CoGo,
Let me know if you get around to solving this problem before I do. I intend to drop a tank and check the fuel pickup at some point, but it may be a while.
-magnu001