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Originally Posted by smartnup
Truck was sittn for 3 years.....i just bought it a few weeks ago...and have been doing a ton of work to it......anyway,it was not working with the old gas tank in it....i replaced the tank brand new..and also the sending unit..
Where would the tank switch be...under the truck or in the cab??
I have only 1 tank on it..dont know if there was 2 at one time
im thinking its the guage its self.....
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If it had 2 tanks the switch should be under the driver seat towards the front. That's where the valve/switch used to be. In the old one anyway, the newer body was a switch on the dash. I still say its the sender. Pull it out and move the arm and watch the gauge. If its still not working double check all connections from sender to gauge. I'd pray it's not the gauge cause its gunna be pricey. You can use an ohm meter on the gauge and check it that way you can also jump a power wire from a 9v battery on the terminal and if it moves then you should be good there.
The arm on the sender moves along a potentiometer which varies the voltage to the gauge from 0-12 volts to show how much fuel is in the tank being its a new sender that rules out corrosion on the potentiometer.
1982 f-150 need advise
Linear Mode
