Q: How to check and replace the Coolant Temperature Sensor on Ford Crown Victoria?
A: First of all, a light or gauge on the dash, and a sending unit on the engine are used in the coolant temperature indicator system. In case of overheating, check the coolant level, wiring, and fuses. Grounding wire to the sending unit helps to test the circuit. In case of any need, replace the sending unit. Also, check the coolant type and mixture. The electrical connector should be disconnected to enable you to remove the sensor from the engine so that you can replace it with a new one.