Faulty Temperature Sensor: The temperature sensor (also known as the coolant temperature sensor) is responsible for measuring the temperature of the engine coolant and sending this information to the temperature gauge. If the temperature sensor is faulty or damaged, it may provide incorrect readings or fail to register any temperature at all.
Wiring Issues: The temperature gauge relies on electrical signals from the temperature sensor to display the accurate temperature. If there are any loose connections, broken wires, or other electrical issues in the circuit between the temperature sensor and the gauge, it can affect the accuracy of the reading.
Gauge Cluster Problem: The temperature gauge itself or the gauge cluster in your Cavalier may be malfunctioning. If there is an issue with the gauge cluster, the temperature gauge may not display the correct information even if the temperature sensor and wiring are functioning properly.
Cooling System Issues: If the engine is running hot but the temperature gauge is not reflecting this, it is possible that there is a problem with the cooling system itself. This could include issues such as a coolant leak, a faulty thermostat, or a malfunctioning water pump.
To accurately diagnose the cause of the incorrect temperature gauge reading and overheating issue, it is recommended to take your vehicle to a qualified mechanic or automotive technician. They will have the necessary tools and expertise to properly diagnose the problem and perform any necessary repairs or replacements.
