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Reply to "Fuel Sending Unit"

My sending arm was stuck up against the back of the tank, indicating 1/4 full all the time. This was at the apex of its arc. No way the the float can be stuck up against the tank when its all the way up. The sending arm has to be toward the rear of the tank. Only way it can be installed. The rear most terminal is the fuel light. With power off read resistance between the forward terminal and ground. Mine read 340 ohms empty, 20 ohms full. It appears the sending unit will have to come out no matter what. I bought an endoscope to look inside the tank which was how I determined my float was hung up. i used an old electric pump to drain the tank. By the way when I refilled the tank I pumped gas in by 1 gallon increments. My fuel gauge is way off. The fuel light comes on with 5 gallons in. 1/4 tank was 10 gallons, 1/2 tank was 15 gallons. I was warned the arm is brittle so I left it the way it was. The units are a bit pricey!
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