2000 GMC Safari Crankshaft Position Sensor

The recommended torque is 20 N.m (15 lb-ft).

This in turn exposes the engine to higher than normal cylinder pressures which may result in an inoperative condition of the starter drive housing, the engine flywheel starter ring gear, or the engine block at the outside edge of the starter boss.

After the ignition switch is turned to the CRANK position, the VCM must see a change in the state of the brake switch (Released to Applied) to run the learning procedure. Also, the service brakes, not the parking brake, must be held throughout the learning procedure.

You can inspect for a stored powertrain DTC code P0338. This DTC will not illuminate the °Service Engine Soon° light. If this code is stored, the Crankshaft Position Sensor, P/N 10456607, must be replaced and the remaining components inspected for damage (engine block at the starter boss, the starter drive housing, and the engine flywheel starter ring gear).

You will need to make certain that the CKP sensor mounting surfaces are clean and free of burrs before installing the new CKP sensor. When installing the CKP sensor make sure the sensor is fully seated and held stationary in the front cover before torquing the hold-down bolt into the front cover. A CKP sensor that is not seated may result in erratic operation and lead to the setting of false codes. You should also inspect the sensor O-ring for wear, cracks, or leakage.