If you are sure the tank is empty and the fuel gauge is reading half full, then there is something wrong with your fuel level sending unit located inside the tank on the driver's side of the vehicle. Probably the variable resistor.
well i own a izuzu kb 260 1998 and a 1994 on both of them its 70 litres to full from dead empty
Check the fuel pump float.
The fuel tank on a 1994 full size K15 blazer is 30 gallons.
Discovered fuel pump is running but there is no spark to the plugs. What now?
There is no reset for the fuel gauge. The sending unit in the fuel tank has probably failed.
check your injection system (fuel filter,injectors).
you could have a bad fuel injector if dirt gets into the injector it will stay open
sorry, have to say it, the full amount...umm, well around 40-44 liters
IT IS LOCATED IN THE FEUL TANK.
first and best thing to find out is if your running rich or not your fuel to air ratio might not be just right. check your oxygen sensor and do a full tune up.
YES!
blockage in the fuel lines or fuel filter is a possibility restricting fuel flow when there s no pressure in the fuel tank.