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The fuel gauge on a 1985 Chevy Silverado will read full all the time if the sending unit is defective or the wire has come loose. When the tank is full, the sending unit normally shuts off which cause the gauge to read full.
A potential bad gauge or sender unit in the tank would cause it to read full all the time.
why won't my gas gauge work all the time.it will read full when i fill it but after that as i drive i am not sure how much gas is in the tank
Most of the time it's the fuel level sender in the fuel tank if your gauge moves around a bit but doesn't read correctly. If the Gauge is stuck on full all the time, the gauge itself is broken.
The fuel level sensor has probably gone belly up on you. You may need to get a new one.
Your fuel sending unit is probably bad. It is located in the fuel tank and the fuel tank must be removed to replace it.
Check the fuel gauge sending unit, located in the fuel tank. The sending unit could be stuck in the full position.
bad sending unit in tank, or short in wireing.
1984, Corvette the fuel gauge stays at 1/2 full all the time. Plaese help.
Because it is broken The sender unit( wire harness is bad) take off the old and put on new. good luck pulling the fuel tank.
A temperature gauge, that always read the maximum temperature, is usually not connected to the temperature sensor. The wire between the gauge and the sensor must be broken.
I had a comparable issue with my 1983 300 SD. It went to the point where the fuel gauge read full all the time, the temperature read far over 120