GM 12703627
Crankshaft Position Sensor

Vehicle elevation is the first step before proceeding with Crankshaft Position Sensor replacement. Start by disconnecting the CKP sensor harness connector before uninstalling the retaining bolt to remove the engine block-mounted sensor. Check the sensor's O-ring for signs of wear or cracks or leakage before installation. If any issues are found replace the O-ring while applying engine oil for lubrication. Insert the CKP sensor into its engine block position then lock the bolt to 10 N.m (89 lb in). Reconnect the CKP sensor harness connector after you install the CKP sensor retaining bolt. Lower the vehicle then complete the Crankshaft Position System Variation Learn procedure.

To replace the Crankshaft Position Sensor, you have to first remove the Starter. Following that, perform the engine wiring harness electrical connector removal from the crank shaft position (CKP) sensor through the wheel well opening. Clean the surroundings of the ckp sensor to ensure that no debris gets into the engine, then the bolt of the ckp sensor and the sensor itself are removed. In installation, start with the ckp sensor and install the ckp sensor bolt to 25 n.m (18 lb ft). Then connect ckp sensor to the engine wiring harness electrical connector and reinstall the Starter. Finally carry out the crankshaft position system variation learn whenever the Crankshaft Position Sensor is spliced or is replaced.

You should start by lifting and supporting the vehicle to access the Crankshaft Position Sensor. Remove the connector from the crankshaft position sensor on the wiring harness, then loosen and take out the CKP sensor bolt and remove the CKP sensor from the engine block and discard the O-rings. During installation, attach new O-ring seals to the CKP sensor and apply some clean engine oil to them. Set the CKP sensor into the engine block and add the GM P/N 12346004 (Canadian P/N 10953480) sealer to the bolt's threads, being sure to observe the fastener instructions. Screw in the CKP sensor bolt with a torque of 10 Nm (89 lb in). Attach the electrical connector from the wiring harness to the CKP sensor , lower the vehicle, and carry out the crankshaft (CKP) system variation learn process.

Begin Crankshaft Position Sensor replacement by first removing the negative Battery Cable. Install jack stands under the vehicle to support it from the portion opposite the work area before engaging any removal process while it stays on the hoist system. First disconnect the Starter and remove the crankshaft position (CKP) sensor electrical connector while cleaning its surroundings to stop debris from entering the engine. To install the ckp sensor, remove both its retaining bolt and sensor. Follow this installation procedure by putting back the ckp sensor then placing the retaining bolt before applying torque to 25 nm (18 lb ft). Reinstall the Starter after reconnecting the ckp sensor electrical connector and lowering the vehicle below the hoist and then reconnecting the negative Battery Cable. Complete the ckp system variation learn procedure following transmitter programming.

Begin the Crankshaft Position Sensor replacement operation with these steps: first turn the ignition and start switch to off or lock then disconnect the negative Battery Cable to avoid electrical sparks. Onstar(R) (UE1) vehicles with a back up battery require vehicle owners to wait until rap times out before disconnecting power to avoid damaging the back up battery. This precaution applies when the main vehicle battery or onstar(R) fuse requires removal while the ignition key remains in off mode. After lifting the car begin with Starter removal. The area surrounding the crankshaft position (CKP) sensor needs cleaning before disconnecting its electrical connector to improve engine debris prevention. After removing the retaining fastener, you should take out the ckp sensor by hand. Reinstall the retaining fastener by placing the ckp sensor in position before tightening it to 25 nm (18 lb ft). Following Starter installation reconnect the ckp sensor electrical connector while lowering the vehicle and restoring the negative Battery Cable. Complete the ckp system variation learn process as the last step.

The replacement of Crankshaft Position Sensor requires vehicle elevation with suitable support. First disconnect the electrical connector of the crankshaft position sensor then remove both the bolt and the sensor itself. Before installing the CKP sensor and its stud apply clean engine oil to the O-ring then tighten the stud to 10 N.m (89 lb in ). Lastly, reconnect the CKP sensor electrical connector before lowering the vehicle.

To replace the Crankshaft Position Sensor, first raise and support the vehicle in an appropriate manner. Well, some of you may find this annoying. Basically, if the situation necessitates it, take off the oil pan skid plate and its bolts. Untape the engine wiring harness electrical connector from the crankshaft position (CKP) sensor and unbolt and remove the CKP sensor. When installing the CKP sensor, make certain that the sensor is pushed in firmly before tightening the bolt to prevent erratic performance and false diagnostic trouble codes (DTCs). If replacing the old CKP sensor, install a NEW seal-ing (O-ring) onto the sensor before oiling with clean engine oil. Install the CKP sensor and bolt by tightening it to a 10 N.m (89 lb in). Connect the engine wiring harness electrical connector to the CKP sensor. In case of applicable, use the position of the oil pan skid plate and install the bolts, and fasten them to 28 N.m (21 lb 10). Finally, lower the vehicle and execute the crankshaft position system variation learn procedure.

Vehicle elevation followed by support system setup is required before sensor replacement on the Crankshaft Position Sensor. You must disconnect the crankshaft position (CKP) sensor harness connection before removing the retaining bolt to extract the CKP sensor from the engine block. Check the sensor O-ring for signs of wear damage or cracks before installation by replacing it with a new one while applying engine oil for lubrication. Well-torch the CKP sensor to its position in the engine block then tighten the bolt up to 10 N.m or 89 lb in. After installing the retention bolt secure the CKP sensor then attach its harness connector. Complete the Crankshaft Position System Variation Learn after lowering the vehicle.

Begin by lifting and supporting your vehicle before proceeding with the crankshaft position sensor replacement work. Before proceeding with the replacement begin by disconnecting the crankshaft position (CKP) sensor harness connector. Following this remove the retaining bolt securing the CKP sensor before removing it from the engine block. An inspection of the sensor O-ring must occur before installation to check for wear and leakage or cracks. If necessary a replacement should be made while oiling the new O-ring with engine oil. Insert the CKP sensor into the engine block then torque the bolt up to 10 Nm (89 lb in). The CKP sensor retaining bolt must be reinstalled while reconnecting the CKP sensor harness connector. Complete the Crankshaft Position System Variation Learn while lowering the vehicle.

In order to replace the Crankshaft Position Sensor, first, lift and safely suspend the vehicle. If necessary, take off the oil pan skid plate and its bolts. Unplug the engine wiring harness electrical connectors from the crankshaft position (CKP) sensor, and set the CKP sensor back bolt and the sensor apart. When installing the new CKP sensor, be sure it is seated fully before tightening the bolt to prevent erratic performance and false diagnostic trouble codes (DTCs). If restocking the old CKP sensor, which until now should be brand new O-ring seal on the sensor and oiling with clean engine oil. Mount the CKP sensor with the bolt, tighten the bolt to 10 N.m (89 lb in). Connect the CKP sensor wiring harness electrical connector once again. In cases where appropriate, place the oil pan skid plate and bolt it to the engine, tightening to 28 N.m (21 lb ft). Finally, lower the car and conduct crankshaft position system variation learn procedure.

Initially raise the vehicle for support before you begin Crankshaft Position Sensor replacement. Remove the power connector of the engine harness from the OBD II connector of the crankshaft position sensor. Then unscrew the bolt holding the sensor inside the engine block and extract the sensor from its position. Discard both O-ring seals. New O-ring seals require installation on the CKP sensor before applying a light layer of clean engine oil for lubrication. Install the CKP sensor into its block position before you apply GM P/N 12346004 (Canadian P/N 10953480) sealer to the threads of the sensor bolt. Remember to follow fastener safety instructions. Use 10 Nm (89 lb in) torque when installing the CKP sensor bolt. Begin by reconnecting the engine wiring harness electrical connector to the CKP sensor then lower the vehicle for crankshaft (CKP) system variation learn.

The Crankshaft Position Sensor replacement process begins with correctly supporting the vehicle during elevation. You need to slide the engine wiring harness sleeve into place then remove the engine wiring harness electrical connector from the crankshaft position sensor. First clean the area surrounding the CKP sensor before removing its bolt and then the sensor itself. Begin installation by adding the CKP sensor then use the CKP sensor bolt to secure it before applying a torque of 25 Nm (18 lb ft). Connect your engine wiring harness electrical connector to the CKP sensor while placing your engine wiring harness sleeve over the CKP sensor electrical connection. After lowering the vehicle complete the Crankshaft Position System Variation Learn procedure.

The first step to replace the Crankshaft Position Sensor requires vehicle elevation and proper support. First remove the engine wiring harness sleeve and next disconnect the engine wiring harness electrical connector from the crankshaft position (CKP) sensor. Wipe clean the sensor area to keep dirt out of the engine before uninstalling both the CKP sensor bolt and sensor itself. Set the CKP sensor into its proper position and torques the CKP sensor bolt to 25 Nm (18 lb ft). Route the engine wiring harness electrical connector to connect with the CKP sensor before positioning the engine wiring harness sleeve across the CKP sensor electrical connection. Complete the Crankshaft Position System Variation Learn procedure after lowering the vehicle.

Reconnect the CKP electrical connector and reinstall the wiring harness heat shield to the oil level indicator tube.

Install the CKP sensor retaining bolt and reconnect the CKP sensor harness connector.

Raise and support the vehicle.

Install the CKP sensor retaining bolt and reconnect the CKP sensor harness connector.

Turn the ignition OFF and raise and support the vehicle.

Place the CPK sensor in position and ensure to follow the Fastener Notice.

Lower the vehicle.

Disconnect the crankshaft position (CKP) sensor electrical connector and clean the area around the CKP to prevent debris from entering the engine.

Raise the vehicle and remove the starter.

Disconnect the negative battery cable and raise the vehicle.

First, remove the starter and disconnect the CKP sensor electrical connector.

Disconnect the crankshaft position (CKP) sensor electrical connector and clean the area around the CKP sensor to prevent debris from entering the engine.

Lubricate the CKP sensor O-ring with clean engine oil.

The oil pan skid plate and install the bolts, tightening them to 28 Nm (21 lb ft).

The engine wiring harness electrical connector.

Release the throttle immediately, allowing the engine control to return to the operator.

Perform the Crankshaft Position System Variation Learn procedure.

Raise the vehicle and remove the starter.