Find Jeep Grand Cherokee O2 Sensors. Get Jeep Grand Cherokee O2 Sensor Socket & Spacer. Learn Jeep Grand Cherokee Oxygen Sensor Replacement Cost. Maintaining optimal performance in your Jeep Grand Cherokee starts with diligent care of its O2 sensors, pivotal in managing fuel efficiency and emissions control. Regularly checking for signs of wear, such as rough idling or a lit check engine light, can signal the need for replacement. Enhance sensor longevity by ensuring a clean engine and using fuel additives that prevent contamination. When selecting a new O2 sensor, opt for high-quality materials compatible with your model, choosing between wideband and narrowband types based on your vehicle's requirements. Proper installation is crucial, so consider professional help to secure peak operation and preserve your Grand Cherokee's vigor.