Grand Cherokee 4WD V8-4.7L (2003)
Oxygen Sensor: Service Precautions
WARNING: THE EXHAUST MANIFOLD, EXHAUST PIPES AND CATALYTIC CONVERTER(S) BECOME VERY HOT DURING
ENGINE OPERATION. ALLOW ENGINE TO COOL BEFORE REMOVING OXYGEN SENSOR.
CAUTION: When disconnecting sensor electrical connector, do not pull directly on wire going into sensor.