only 3 reasons a temp gauge wont work the temp sender is bad the gauge is bad or the wire from temp sender to gauge is broken
You temperature gauge could be not responding because of a faulty fuse. If you check your fuses and they work then you may have an electrical problem.
Bad gauge or defective coolant temperature sensor
you need a newvoltage reducer
water temperature. 180-220 degrees
If it gets to hot the thermostat wont work. you need to repace it and the gauge will work again.
no water
Why does the temperature gauge on your 2001 malibu not work and the cooling fans run all the time?
Thermostat is the part which functions to maintain engine coolant temperature by restricting the flow ( open and close based on the coolant temperature ) to the heat exchanger ( radiator). Water temperature sender ( water temperature transducer ) is the one which signals the the water temperature gauge. so water temperature sender may not work and show the same value on the gauge. but engine temperature will rise and vary depending on the load. the engine will be cold when you start the engine after an overnight and if you touch some safe parts of the engine you will feel the temperature rise even if the gauge does not indicate it. hope this will help you. thank you.
What are you talking about? My temperature gauge works fine. Though, if it wasn't I would check the temperature sending unit.
To answer you question more thoroughly I will need more detail because there are several different types of water qauges. You have a water temperature gauge, water pressure gauge and water level gauges.
The temperature gauge will not work on a 1984 GMC Sierra truck if the sending unit is defective or the wiring has come loose. It is also possible for the gauge itself to fail, but this is less common.