Crankshaft Position Sensor: Service and Repair

REMOVAL
The crankshaft position (CKP) sensor is mounted to the transmission bellhousing near the rear of the engine block.

The sensor may be mounted to the transmission with one of the following four different configurations:

CKP (With 42RLE Auto, Trans):

- with one bolt to the right side of the transmission if equipped with a 42RLE automatic transmission.

CKP - One - Bolt Mounting (Except 42RLE Auto Trans):

- with one bolt to the left side of the transmission. If sensor is equipped with one mounting bolt, it is adjustable..

CKP - Two - Nut Mounting:

- with two nuts to the left side of the transmission.

CKP - Two - Bolt Mounting:

- with two bolts to the left side of the transmission.

1. Disconnect sensor pigtail harness (electrical connector) from main electrical harness.
2. Depending upon application, remove either sensor mounting bolt(s) or nuts.
3. Remove sensor from engine.

INSTALLATION
1. Clean out machined hole in engine block.
2. Apply a small amount of engine oil to sensor O-ring.
3. Install sensor into engine block with a slight rocking action. Do not twist sensor into position as damage to O-ring may result.

CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder block. If sensor is not flush, damage to sensor mounting tang may result.

4. Install mounting bolt and tighten to 28 N.m (21 ft. lbs.) torque.
5. Connect electrical connector to sensor.

INSTALLATION

Sensor With 1-Bolt Mounting (Equipped With 42 RLE Automatic Transmission):
1. Install sensor flush against opening in transmission housing.
2. Install and tighten sensor mounting bolt to 12 N.m (9 ft. lbs.) torque.
3. Connect electrical connector to sensor.

Sensor With 2-Bolt Mounting:
4. Install sensor flush against opening in transmission housing.
5. Install and tighten two sensor mounting bolts to 12 N.m (9 ft. lbs.) torque. The two sensor mounting bolts are specially machined to correctly space unit to flywheel. Do not attempt to install any other bolts.
6. Connect sensor pigtail harness electrical connector to main wiring harness.

Sensor With 2-Nut Mounting:
7. Install and tighten two sensor mounting nuts to 12 N.m (9 ft. lbs.) torque.
8. Connect sensor pigtail harness electrical connector to main wiring harness.

Sensor With One-Bolt Mounting (Not Equipped With 42 RLE Automatic Transmission):
New replacement sensors will be equipped with a paper spacer glued to bottom of sensor. If installing (returning) a used sensor to vehicle, a new paper spacer must be installed to bottom of sensor. This spacer will be ground off the first time engine is started. If spacer is not used, sensor will be broken the first time engine is started.

9. New Sensors: Be sure paper spacer is installed to bottom of sensor. If not, obtain spacer PN05252229.
10. Used Sensors: Clean bottom of sensor and install spacer PN05252229.
11. Install sensor into transmission bellhousing hole.
12. Push sensor against flywheel/drive plate. With sensor pushed against flywheel/drive plate, tighten mounting bolt to 7 N.m (60 in. lbs.) torque.
13. Connect sensor pigtail harness electrical connector to main wiring harness.