Posts Tagged: 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
Fuel Gauge Not Working — How to Diagnose and Fix
Why Your Gas Gauge Is Not Working or Reading Wrong Quick Summary When your gas gauge doesn’t work, the most common causes are corrosion at the fuel-sending unit connector, a poor ground, wiring damage, or a worn fuel-sending unit inside the tank. In modern vehicles, the body control module and instrument cluster also play a role, so a gas gauge’s incorrect reading doesn’t always mean the sender itself is faulty. The key is testing before replacing parts. Article What’s Really Going On When a Fuel Gauge Isn’t Working Any time … Read More