Removal (3.1L & 3.4L - Ckp Sensor "A") Buick Century VI

1. Crankshaft Position (CKP) sensor "A" may also be referred to as CKP sensor 24X. CKP sensor is located behind the crankshaft balancer. (Scheme 5) Turn OFF the ignition. Remove the drive belt. Raise and support the vehicle. Remove the right front tire and wheel. Remove the lower air deflector. Install the jack stands to the frame. Loosen the left frame bolts and remove the right side frame bolts. Using the jack stands, lower the right side of the frame to access the crankshaft balancer. Install the Flywheel Holder (J 37096) to the flywheel to prevent flywheel rotation. Remove the crankshaft balancer bolt and the washer. Remove the crankshaft balancer. Disconnect the CKP sensor harness connector.
2. Note the routing of the CKP sensor harness before removal. Remove the harness retaining clip and bolt. Disconnect the CKP sensor electrical connector. Remove the sensor bolts. Remove the CKP sensor.

1. Install the CKP sensor with bolts and the route harness as noted during removal. Install the harness retaining clip and bolt. Tighten the bolts to specification. See «TORQUE SPECIFICATIONS»(ref-159248-S05123880852003112000000) .
2. Connect the CKP sensor electrical connector. Apply Sealer (12345739) or the equivalent to the keyway of the crankshaft balancer. Install the crankshaft balancer into position over the key in the crankshaft. Using Crankshaft Balancer Installer (J-29113), install the crankshaft balancer to the crankshaft.
3. Remove the crankshaft balancer installer from the crankshaft balancer. Install the crankshaft balancer washer and the crankshaft balancer bolt. Tighten the bolt to specification.
4. Install the lower air deflector. Lower the vehicle. Install the drive belt. Perform the CKP System Variation Learn Procedure. See «CRANKSHAFT POSITION SENSOR»(ref-159248-S12805674032003112100000) under PROGRAMMING.

Scheme 5