2005 chevy malibu LS. Start engine runs ok fuel tank full. Chech engine soon light is on steady. Fuel level shows full within 2 minutes alarm sounds fuel level drops to empty. Information center says low fuel warning.
Hello, and welcome to JA!! you will need to have the system scanned for codes, you probably have a code P0463 stored in the system.DTC P0463 Fuel Level Sensor Circuit High Voltage. more than likely you have a bad fuel level sensor. this requires dropping the fuel tank and replacement of the fuel level sensor. pretty common problem.
If there is anything you dont understand, please feel free to ask me to explain.
Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified