it might be a fuse
Either there is a short in the fuel sender wiring or the sender in the tank is bad.The actual gauge is rarely bad.Good luck.
I can hear the mixing bals in my aerosol cans when I shake them even if they are empty. If you do not then perhaps the balls have become stuck for some reason.
The thermostat is probably stuck open, even when the engine is cold.
The floater inside your pump is sticking. You will have to replace your fuel pump in order to fix this problem.
float could be stuck, or the fuse could be blown, some cars show full,empty or half when there is no voltage (normaly a 10 amp fuse) Could also be a bad sending unit. Unfortunately this is located inside the gas tank and is part of the fuel pump assembly. See "Related Questions" below for more
Most likely, there is a small hole in the plastic float in your gas tank's sending unit. As the float fills with fuel,it sinks to the bottom of the tank and sends an "empty" signal to the gas gauge. You're gonna need a new fuel pump. Scott
Fuel tank sending unit. Fuse.
There is no answer to this question as all makes of cars have different gas tank and gage designs, one will be bone dry while another car will still have a gallon left in the tank even though both gages read empty.
The problem may not be in the sensor. The problem could exist in either the the gauge, or something may have gotten stuck in the guage preventing the needle from going any higher. If something gets stuck even once, it can permanently throw your gauge off.
sounds like your temp switch is bad you will need to replace it. Maybe the thermostat is stuck open and the engine never heats up. <- even if the thermostat is stuck open the temp gauge would register heat it would just take longer for the engine to heat up for it to register.
your float is stuck or you have a short in the hot wire!