Shop Jeep Grand Cherokee Oxygen Sensor. Replace Jeep Grand Cherokee Oxygen sensor socket & Jeep Grand Cherokee O2 sensor cleaner. Maintaining the oxygen (O2) sensors of your Jeep Grand Cherokee is crucial for engine performance and fuel efficiency. To extend their lifespan, ensure your vehicle is regularly serviced and avoid using fuel additives that can coat the sensor, leading to failure. Common signs that might signal the need for replacement include rough idling, decreased fuel economy, and a persistent check engine light. When selecting a new O2 sensor, opt for high-quality options that correspond to your model's requirements, whether it's a heated type for quicker response or a wideband sensor for newer, more efficient engines. Proper installation is key, so follow the manufacturer's guidelines closely or consider a professional fitment to prevent damage and ensure optimal functionality, keeping your Grand Cherokee running smoothly.