GM 97365038
Camshaft Position Sensor

The beginning step of changing the Camshaft Position Sensor demands that individuals first clear the area surrounding the CMP sensor to avoid foreign matter entering the engine. To begin the swap raise the car and disconnect the wiring harness connector that connects engine electrical signals to the CMP sensor wire harness. Launch the CMP sensor wire harness by removing the 3 bolts (738) before disconnecting the electrical connectors linking CMP sensor wire harness to CMP sensor and CMP actuator magnet. After disconnecting the CMP sensor wire harness (737), workers must remove both the sensor (703) and its O-ring seal (704). Check for any cuts or damage on the O-ring seal located in the CMP. If it remains intact you can use this component again. Clean engine oil should be used to lubricate the O-ring seal before installation onto the sensor. You should install the CMP sensor (703) to the front cover before you attach the CMP sensor wire harness (737) and complete the electrical connector attachment to the CMP sensor and the CMP actuator magnet. The CMP sensor wire harness (738) requires installation of three bolts which need to be tightened to 12 Nm (106 lb in). After lowering the vehicle complete the installation by connecting the engine wiring harness electrical connector to the CMP sensor wire harness.

Before installing the Camshaft Position Sensor one must clean the area surrounding the CMP sensor to stop foreign material from accessing the engine compartment. Begin by removing both the CMP sensor bolt followed by withdrawing the CMP sensor itself. The CMP sensor installation requires positioning it into its place before installing and tightening the CMP sensor bolt to 29 N.m (21 lb ft).

The first step before replacing the Camshaft Position (CMP) Sensor requires cleaning the sensor vicinity to stop foreign particles from getting inside the engine. First detach the CMP sensor bolt followed by removal of the CMP sensor unit. After placing the CMP sensor in position you must install its bolt using 29 N.m torque or 21 lb ft force.

The first step for replacing the Camshaft Position (CMP) Sensor requires vehicle elevation and support systems according to proper procedures. Start by removing bolts from the engine shield while also removing the shield if it is present. Cut the electrical connector for the CMP sensor before disconnecting the bolt that holds the sensor itself and removing the CMP sensor. Inspect the sensor for potential wear and cracks and leakage when the replacement is not necessary. Check the CMP sensor O-ring for wear and damage before installing it and replace any damaged O-rings with new ones. Replace the damaged O-ring and apply engine oil for lubrication before installing the new O-ring. Secure the CMP sensor onto its bolt position and tighten until it reaches 12 N.m (106 lb in). The CMP sensor electrical connector needs reconnection after which install the engine shield and bolts with 20 N.m (15 lb ft) torque setting. Finally, lower the vehicle.

A proper cleanup operation should precede Camshaft Position Sensor (CMP) replacement for LY6/L76/L92 engine models to avoid engine contamination. First secure the vehicle in position and enable working beneath it. Use a clip tool to disconnect the engine wiring harness electrical connector from the CMP sensor wire harness. First remove three bolts (738) securing the CMP sensor wire harness (737) and separate all electrical connectors connecting the CMP sensor to the CMP actuator magnet. Both the CMP sensor wire harness (737) and CMP sensor (703) and O-ring seal (704) need to be removed separately. Check the O-ring seal to see if any damage or cuts exist. The sensor requires clean engine oil to lubricate its surface before installation onto the device. First place the CMP sensor (703) onto the front cover before installing the CMP sensor wire harness (737). Screw in the 3 CMP sensor wire harness bolts (738) and torque them to 12 N.m (106 lb in) after connecting electrical connectors between the CMP sensor wires and the actuator magnet. To complete the repair reconnect the engine wiring harness electrical connector until it joins the CMP sensor wire harness and lower the vehicle.

Remove the CMP sensor bolt and take out the CMP sensor.