GM 97365037
Crankshaft Position Sensor

The replacement of the Crankshaft Position Sensor requires users to remove the Starter component while disconnecting the crankshaft position (CKP) sensor electrical connector. Wash the area surrounding the ckp sensor so debris stays out of the engine and remove the bolt connecting the sensor and extract the ckp sensor. Position the ckp sensor properly before tightening the bolt which requires 25 n.m (18 lb ft) torque. Reinstall the Starter after connecting the ckp sensor electrical wires. The crankshaft position system variation learn procedure must be completed whenever technicians replace or remove the Crankshaft Position Sensor.

The process of replacing the crankshaft position (CKP) sensor entails the first step of removing the Starter and emitting the ckp sensor electrical connector. Clean the area around the ckp sensor to ensure that no debris in the engine, then take off the ckp sensor bolt and lose the ckp sensor. To install, replace the ckp sensor in position and install the ckp sensor bolt and tighten it to a dimension of 25 n.m (18 lb ft). Re-attach the ckp sensor electrical connector and reinstall the Starter. Lastly, do the ckp system variation learn procedure whenever you replace or remove the Crankshaft Position Sensor.

To replace crankshaft position (CKP) sensor, lift and support the vehicle, unscrew the nut of the fuel line bracket and bracket from the car and hold it with bellhosing stud while you lower the vehicle. Next, take out the driver side rear Ignition Coil bolts and move the Ignition Coil to another place. Remove the ckp sensor electrical connection and apply penetrating oil around the sensor to soak in it before loosening the ckp sensor bolt. Twist the sensor back and forth and pull it straight up to take out, inspect for wear. Normal wear will show on the wear strips whereas excessive wear will be mirrored on the sensing element requiring replace if discovered. When reusing the old sensor, ensure the two o-rings are damaged and replace them whenever necessary, then lubricate the two rings using clean engine oil. Mount the ckp sensor, making sure it is fully seated against the crankshaft reluctor ring, and apply thread adhesive gm p/n 12345493 (Canadian P/N 10953488) to the threads of the ckp sensor bolt prior to installation of the ckp sensor bolt hand tight 12 n.m (106 lb in). Reconnect the electrical connector for the ckp sensor as well as position the rocker cover Ignition Coil and drive side rear Ignition Coil bolts installing with a torque of 12 n.m (106 lb in). Reposition the vehicle onto the hoist to install the fuel line bracket to the nut onto the bellhousing stud locking until 10 n.m (89 lb in) then lowering it back on the ground and perform the ckp system variation learn process.

Start the vehicle replacement process by taking out the Starter. To begin with disconnect the engine wiring harness electrical connector from the crankshaft position (CKP) sensor while working through the wheel well opening. Clean the sensor's surrounding area to avoid engine debris before removing its bolt and sensor. Equipment installation begins with the ckp sensor followed by the ckp sensor bolt which requires torque to 25 n.m (18 lb ft). Reconnect the engine wiring harness electrical connector to the ckp sensor after which reinstall the Starter. The crankshaft position system variation learn procedure must be done whenever replacing or removing the Crankshaft Position Sensor.

Begin replacement of the Crankshaft Position Sensor by putting ignition and start switch into off or lock position and turning off all electrical loads. Disconnect the negative Battery Cable to prevent injuries and tool damage when any tools may touch live electrical terminals. Raise the vehicle then remove the Starter before beginning work. Disconnect the crankshaft position (CKP) sensor electrical connector while cleaning the space surrounding the ckp sensor to protect against engine intrusion of debris. First remove the retaining fastener which holds the ckp sensor in place before extracting the sensor itself. Foot placement of the ckp sensor requires the retaining fastener to be tightened to 25 n.m (18 lb ft) while securely fastening the sensor to its appropriate position. Reattaching the electrical connector for the ckp sensor along with Starter reinstallation will finish the procedure. Next steps include lowering the vehicle and reestablishing the negative Battery Cable. A crankshaft position system variation learn procedure must be executed after substituting the ckp sensor.

Place the CKP sensor back in position and secure it with the retaining fastener, tightening it to 25 N.m (18 lb ft).

Remove the CKP sensor retaining fastener and then the CKP sensor itself.