Temperature gauge not working

Well, it could be that the engine never gets to normal operating temperature, such as with a thermostat that is stuck in the open position. This can create all kinds of other problems also -- so definitely check to see what the genuine actual temperature of the engine coolant is. This can be done by using a temperature gun to measure the coolant temperature, for one thing. Alternatively, there could be a wiring issue or a sending unit issue. Again, test the real temperature first and see how it correlates to the gauge reading. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops