Where is the O2 sensor on a Jeep Grand Cherokee?
Where is the O2 sensor on a Jeep Grand Cherokee? In the case I was called in on, the vehicle was a 2000 Jeep Grand Cherokee with the 4.0L engine. The vehicle’s O 2 sensor harness was pinched underneath the valve cover at the back of the cylinder head. Fortunately, the sensor’s negative heater wire was the only wire in the harness that was involved. How does the O2 sensor in a car work? The O2 sensor in your vehicle monitors the exhaust gases coming out of the engine. It determines the amount of oxygen in the gases, which indicates...