Gas guage won't go up to full.
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Gas guage won't go up to full.
Hi I am trying to figure out what is wrong with my gas gauge it will only go up to 3/4 full it won't go up to the top even when I fill up the tank. Do I need a new wire or is the hand sticking?
#3
carb whisperer
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Sending unit may be fine. The tank level is based on the resistance value the gauge sees from
the unit. If the unit doesn't get good grounding it will always read low. Turns out that corrosion
in the sending unit between the outer fastening and the innerfastening gets corroded and limits
the affectivness of the ground to the tank via the little screws that hold the sender in.
I fixed this on mine by jumpering a wire from the base of the sender as it comes thru the plate
over to one of the screws. Now it reads full when I fill it.
the unit. If the unit doesn't get good grounding it will always read low. Turns out that corrosion
in the sending unit between the outer fastening and the innerfastening gets corroded and limits
the affectivness of the ground to the tank via the little screws that hold the sender in.
I fixed this on mine by jumpering a wire from the base of the sender as it comes thru the plate
over to one of the screws. Now it reads full when I fill it.
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