Removal & Installation (3.1L & 3.4L)
- Disconnect negative battery cable. Remove serpentine belt from crankshaft pulley. Raise and support vehicle.
- Remove crankshaft harmonic balancer bolt. Using Balancer Remover (J-24420-B), remove harmonic balancer. Disconnect crankshaft position sensor harness connector. Remove crankshaft position sensor bolts. Remove crankshaft position sensor.
- To install, reverse removal procedure. Apply Thread Sealer (GM 1052080) onto threads of harmonic balancer bolt. Tighten crankshaft position sensor and harmonic balancer bolts to specification. See TORQUE SPECIFICATIONS .