If the wire to the sending unit in the tank is broken or disconnected, the gauge will read full. So check the wiring.
It's also possible that the float is stuck up against the top of the tank. You may be able to fix that by hammering on the tank with a rubber mallet. The fuel level should be below full when you try that. It may unstick the float.
Welcome to TheDieselStop
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First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
), AIS,
coolant filter w/"hokum" bracket, regulated return,
heated mirror mod, lighted cupholder, Marinco heater plug-in.
Hard or no-start? Check Here
Linear Mode
