Genuine 1999 Pontiac Grand Prix Harmonic Balancer

1999 Pontiac Grand Prix Parts Questions & Experts Answers

• Q: What precautions should be taken when working on the harmonic balancer in 2.8L,3.1L V6 engine on 1999 Pontiac Grand Prix?

  A: Caution is advised when working on the harmonic balancer, as a rubber sleeve may connect the inertia weight to it; shifting the inertia weight's position can disrupt the tuning. Begin by disconnecting the negative battery cable, ensuring that the Theftlock audio system's lockout feature is off if applicable. Loosen the lug nuts on the right front wheel, then raise the vehicle and support it securely on jackstands before removing the right front wheel and inner fender splash shield. Remove the serpentine drivebelt, and for automatic transaxle models, take off the driveplate cover and use a large screwdriver to prevent the crankshaft from turning while an assistant removes the harmonic balancer-to-crankshaft bolt, which is typically very tight. For manual transaxle models, engage high gear and apply the brakes while the assistant removes the bolt. If necessary, lower the right side of the subframe for access by loosening the left side bolts without removing them, then removing the right side bolts. Use a bolt-type puller to remove the balancer from the crankshaft, ensuring the Woodruff key remains in place. For installation, reverse the removal steps, applying moly-base grease to the seal contact surface of the balancer hub to prevent oil leakage, and align the balancer hub keyway with the Woodruff key before tightening the bolt to the specified torque and reinstalling the remaining parts.