Crankshaft Position Sensor: Service and Repair
REMOVAL PROCEDURECAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
CAUTION: Refer to Vehicle Lifting Caution in Service Precautions.
2. Raise the vehicle.
3. Loosen or remove the starter motor (1) as necessary. Refer to Starter Motor Replacement (LX5) or Starter Motor Replacement (L47) in Starting and Charging.
4. Disconnect the electrical connector from the crankshaft position (CKP) sensor (2).
5. Remove the CKP sensor mounting bolt (1).
6. Remove the CKP sensor (2) from the engine block:
^ Remove the sensor by pulling on the sensor connector. Do not pry on the bracket.
^ Do not rotate or twist the sensor or damage the mounting bracket if the sensor is being reused.
INSTALLATION PROCEDURE
IMPORTANT: When replacing the CKP sensor with a new sensor or reinstalling the original sensor, use the following recommended procedures:
^ Make sure that the CKP sensor bore is completely free of any foreign material, such as old O-ring, dirt, burrs, etc.
^ Make sure that the flange on the CKP sensor bore is not damaged.
^ Clean all the mounting surfaces before re-installing any components.
^ Inspect the CKP sensor and replace the sensor if any of the following conditions are present:
- The bracket is damaged.
- The bottom of the brass housing exhibits any damage.
- Never install a sensor that has been dropped.
^ Lubricate the O-ring on the sensor with Amojell or clean engine oil prior to installing the sensor.
^ Check all the connectors for any damage terminals.
1. Lubricate the CKP sensor O-rings.
2. Install and fully seat the CKP sensor (2) into the engine block.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the CKP sensor mounting bolt (1).
Tighten
Tighten the mounting bolt to 9 N.m (80 lb in).
4. Ensure that the CKP sensor mounting flange is contacting the engine block.
5. Connect the electrical connector to the CKP sensor (2).
6. Re-install or tighten the starter motor (1) as necessary..
7. Reconnect the negative battery cable.
8. Lower the vehicle.
9. The CKP System Variation Learn Procedure must be performed after replacing the CKP sensor. Even if the original sensor is reinstalled, the Learn Procedure must be performed. Programming and Relearning
For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes