If your gas gauge is not working on your 2000 Impala you need to take it in to a repair shop. There could be a fuse that needs to be replaced to prevent you from running out of gas.
# 1 check point..Your sending unit has worn out. No big deal...Easy to replace..
The dealer has to program it.
my o6 chevy impala is lighting up on the dash that the engine is hot but the gauge is saying its cold what is wrong and how can i fix it?
You could have a bad thermostat....mine wasn't moving at all and the fan would come on at start up.Make sure to clear your computer after you change it.
get a circuit tester and start looking with the key on
If the gas gauge stops working is there a fuse for it?
The most common reason for the fuel gauge in an Impala to stop at half full is a bad fuel sensor. The sensor is mounted inside of the fuel tank.
Possibly low on coolant. Next most likely is a coolong fan not working. next a thermostat being stuck closed after thata water pump.
Most likely the sending unit in the tank. Start there.
I'm having the same trouble with the 2004 Impala.
get a new temperature sensor.