Fuel Gauge said I still had 1/4 tank Cadillac CTS 2003 6CYL 3.2L

Cadillac CTS

My Cadillac CTS 2003 ran out of gas a month ago but the meter said it had 1/4 of gas. When I refilled my engine with gas, it ran smoothly. Recently, my car battery has been dying very quickly if I keep any electronics on while the car is off and if I leave my car sitting for 3 to 4 hours it will drain the battery. Can someone tell me if I might need a new fuel pump, fuel injector, fuel level sender, pump’s electrical circuit or etc….


 

What you need is a New Battery and a new fuel level sender.