Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001METRO L4-079 1.3L VIN 2 MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSFUEL LEVEL SENSORDESCRIPTION AND OPERATION
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFI
Fuel Level Sensor: Description and Operation
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION Description and Operation
The fuel level sensor is located in the fuel tank. The fuel level sensor sends a signal to the Powertrain Control Module (PCM) and the fuel gauge in the instrument panel. The PCM uses the signal from the fuel level sensor as one of the monitoring conditions for detecting EVAP control system DTCs. The PCM also uses the fuel level sensor input in order to control the EVAP tank pressure control solenoid vacuum valve. If the fuel level is greater than a specified value, the PCM will operate the EVAP tank pressure control solenoid vacuum valve in order to prevent liquid fuel from flowing into the EVAP canister from the fuel tank.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.