Posts Tagged: gas gauge not working
What to check if your fuel gauge is wrong or not working
How to diagnose a faulty fuel gauge If your gas gauge is wrong, it’s usually caused by a bad electrical connection between the gas gauge and the sending unit or a bad connection between the BCM and the fuel-sending unit. However, a faulty sending unit can also cause the gauge to not read or all or report incorrect fuel levels. First, understand how a gas gauge works All fuel level sensors (also called a sending unit) use a float and arm that’s attached to a variable resistor called a potentiometer. … 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