Replace Jeep Wrangler Engine Coolant Temperature Sensor Location & Best Jeep Wrangler Temp Senders. Discover Jeep Wrangler Coolant Temperature Sensors. Maintaining your Jeep Wrangler's coolant temperature sensor is vital for engine health, ensuring it accurately gauges the coolant's heat to prevent overheating. Regularly check for corrosion and wiring integrity, and consider replacing the sensor if you notice erratic temperature readings or check engine lights that trace back to coolant system codes. When shopping for a replacement, opt for sensors made of high-grade materials that promise longevity and precision. The market offers OEM and aftermarket options, with the former guaranteeing a perfect match to your Jeep's specifications. Proper installation is crucial, so follow the manufacturer's guidelines to the letter or seek professional assistance to maintain warranty validity and ensure peak performance.