take the gas tank down and replace the fuel sensor.
there should be a sticker in the engine compartment the shows the routing
Failed gauge, wiring, or level sensor.
This is the light for your security system. Shows that it is working.
check your ground wire to the gauge
Your check gauge light comes on if : your coolant temperature guage shows the temperature is high your oil pressure gauge shows the oil pressure is low or your fuel gauge shows the fuel tank is near empty
using a can of the proper type of Freon, connect a gauge and the Freon to the low side ac port. With the engine and ac running, open the valve and allow the Freon to flow until the gauge shows full. Read the directions on the can and be mindful of the can, as the out side of it gets cold enough for your hand to stick to it.
Perhaps there is an insufficient gas level in the tank?
How much horsepower does a 5.7 litre 350 cubic inch engine in a 1970 Monte Carlo have? ======================================================== My Chilton book shows : 350 cubic inch / 2 barrel carb / 250 horsepower 350 cubic inch / 4 barrel carb / 300 horsepower
Chick Hicks is a Buick Regal from the 1980's aka an American stock car. He also shows the form of a Chevrolet Monte Carlo.
My 2001 had the same problem. There is a GM recall to replace the sending unit.
Monte carlon
The gauge does not cause the heat; it only shows what it is.