The CKP sensor is mounted on the back side of the cylinder block near the transaxle end of the engine, just below the starter. If equipped, remove the CKP sensor heat shield attaching bolt and remove the shield. Disconnect the electrical connector from the CKP sensor. Remove the mounting bolt from the CKP sensor and extract the sensor from the engine block (CKP sensor mounting bolt). Before installation, check the O-ring for cracks or tears and replace it if necessary. Installation is the reverse of removal.