Rick's Free Auto Repair Advice

Posts Tagged: incorrect gas gauge

Fuel gauge wrong

My fuel gauge is wrong The fuel level sending unit is located inside the fuel tank. It has a float attached to an arm that rides up and down with your fuel level. The arm moves in an arc along a variable resistor that changes the voltage. In the old days, the dashboard fuel gauge responded directly to the amount of voltage it received from the fuel level sending unit. However, in late model vehicles, the variable voltage gets sent to a body control module (BCM) or generic electronic module … Read More

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