Replace Ford Ranger Pickup Coolant Temperature Sensors Replacement Cost & Ford Ranger Pickup Engine Coolant Temperature Sensor Location. Maintaining the coolant temperature sensor in your Ford Ranger Pickup is crucial for vehicle health, as it ensures optimal engine performance and prevents overheating. Regularly check for corrosion or damage, and consider replacement if you notice erratic temperature readings or check engine lights. To extend its lifespan, keep your cooling system clean and free of debris. When selecting a new sensor, opt for OEM-grade materials for their precision and durability. Installation is straightforward, but ensure the engine is cool and the power is disconnected for safety. With the right care, your coolant temperature sensor will provide accurate readings, keeping your Ranger running smoothly.