Why your fuel gauge work on 2000 Chevy blazer?

The fuel gauge in your 2000 Chevy Blazer works by measuring the fuel level in the gas tank. The fuel level sensor is located inside the gas tank and is connected to a float that moves up and down as the fuel level changes. The float is attached to a variable resistor, which changes the resistance of the circuit as the float moves. The fuel gauge is connected to the variable resistor and displays the fuel level based on the resistance of the circuit.

Here's a more detailed explanation of how the fuel gauge works:

1. The fuel level sensor is located inside the gas tank and is connected to a float that moves up and down as the fuel level changes.

2. The float is attached to a variable resistor, which changes the resistance of the circuit as the float moves.

3. The fuel gauge is connected to the variable resistor and displays the fuel level based on the resistance of the circuit.

4. When the fuel level is low, the float is at the bottom of the tank and the variable resistor has a high resistance. This causes the fuel gauge to read "Empty."

5. As the fuel level increases, the float rises and the variable resistor decreases in resistance. This causes the fuel gauge to read a higher level.

6. When the fuel level is full, the float is at the top of the tank and the variable resistor has a low resistance. This causes the fuel gauge to read "Full."

The fuel gauge is a very important instrument in your vehicle, as it allows you to monitor the fuel level and avoid running out of gas. If your fuel gauge is not working properly, it is important to have it repaired as soon as possible.