The Camshaft Position Sensor service starts by turning off ignition then removing the engine cover. Begin service of the Camshaft Position Sensor by disconnecting
Spark Plug Wires and ignition coil wire from
Distributor hardware followed by disconnecting the camshaft position (CMP) sensor electrical connector at the Distributor location. Begin the procedure by unscrewing both Distributor Cap screws then removing the cap. After that detach the rotor screws before removing the rotor. Apply the square slot on the reluctor wheel to the cmp sensor then unscrew and remove both the cmp sensor screws and cmp sensor. Installation requires the replacement of Distributor Cap and cmp sensor screws with thread locking compound coated screws that are available as gm p/n 10475922 (pkg of 10 screws) for Distributor Cap and gm p/n 10475924 (pkg of 10 screws) for rotor. Slip the square slot of the reluctor wheel onto the cmp sensor before inserting the sensor through the slot on the reluctor wheel. Use new cmp sensor mounting screws that you will tighten to a torque value of 2.2 n.m (20 lb in). The locating tabs on the rotor need to remain intact for proper alignment because damage requires rotor substitution. Place the Distributor rotor onto the reluctor wheel before securing it with new rotor screws which should be tightened to 2.2 n.m (20 lb in). Close the Distributor Cap installation by fastening new Distributor Cap screws which need tightening at 2.4 n.m (21 lb in). The cmp sensor electrical connector should be connected after reinstalling the engine cover together with Spark Plug Wires and the ignition coil wire.