Low coolant level and possible coolant leak.
no way
Could be temperature sensor Could be gauge
outside temp. that is what it means it is not a trick .
why doesn't my rpm gauge and temp gauge, fuel gauge not work
Replace sending unit
Could be you have a temp sensor for the ECM and a temp sender for the gauge. The gauge sender generally has one wire attached to it. The temp sensor generally has two wires attached to it. Perhaps you changed the wrong one.
1996 prelude temperature gauge reads low temp
temp gauge is stuck on hot
It means that one gauge is not in the safe zone. Check the engine temp, oil pressure, battery/alternator voltage,It means that one gauge is not in the safe zone. Check the engine temp, oil pressure, battery/alternator voltage,
Your temp gauge is a very simple circuit with few things to go wrong. Your temp sensor may be bad, the gauge maybe bad, or the connecting path may be bad. Sometimes if you have taken the gauge pack out, it does not seat right when it is reinstalled. The connection inside the dash is all pressure and prayer.
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
MOST LIKLY YOUR THERMOSTAT NEEDS CHANGING.