GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Acadia - AWD 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Crankshaft Balancer Replacement

Special Tools

    • EN 46106 Flywheel Holding Tool
    • J 38416-2 Crankshaft Button
    • J 41816 Crankshaft Balancer Remover
    • J 41998-B Crankshaft Balancer Installer

Removal Procedure
  1. Remove the engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side.
  2. Remove the drive belt. Refer to Drive Belt Replacement.
  3. Remove the starter. Refer to Starter Replacement.

    4. Object Number: 945978 Size: SH
  4. Install the EN 46106 through the starter mounting hole.

    5. Object Number: 1395946 Size: SH
  5. Support the right side of the frame with jackstands.
  6. Remove the right side frame reinforcement bolts.
  7. Loosen the right side frame bolts.
  8. Lower the right side of the frame approximately 2 inches.
  9. Remove the crankshaft balancer bolt.

    10. Object Number: 1395949 Size: SH
  10. Install the J 38416-2 in the nose of the crankshaft.
  11. Install the J 41816 in order to remove the crankshaft balancer.
  12. Tighten the center bolt of the J 41816 in order to pull the crankshaft balancer off of the crankshaft.
  13. Remove the J 41816 from the crankshaft balancer.

Installation Procedure

    Object Number: 945978 Size: SH
  1. The EN 46106 must be installed onto the flywheel.
  2. Use the J 41998-B , nut, bearing and washer to install the crankshaft balancer.

    3. Object Number: 1395952 Size: SH

    Note: Do not lubricate the crankshaft front oil seal or crankshaft balancer sealing surfaces. The crankshaft balancer is installed into a dry seal.

  3. Apply lubricant to the inside of the crankshaft balancer hub bore.

    4. Object Number: 1395954 Size: SH
  4. Place the crankshaft balancer in position on the crankshaft.
  5. Thread the J 41998-B in the crankshaft. Ensure you engage at least 10 threads of the J 41998-B before pressing the crankshaft balancer in place.
  6. Push the crankshaft balancer into position by tightening the nut on the J 41998-B until the large washer bottoms out on the crankshaft end.
  7. Remove the J 41998-B .

    8. Object Number: 1395946 Size: SH
  8. Install the crankshaft balancer bolt.

    9. Caution: Refer to Fastener Caution in the Preface section.

  9. Tighten the crankshaft balancer bolt.
    10. • Tighten the crankshaft balancer bolt to 100 N·m (74 lb ft).
    • Tighten the crankshaft balancer bolt an additional 150 degrees using the J 45059 .

    Object Number: 945978 Size: SH
  10. Remove the EN 46106 .
  11. Install the starter. Refer to Starter Replacement.
  12. Using engine support fixture, raise the engine into position.
  13. Install the engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side.
  14. Install the drive belt. Refer to Drive Belt Replacement.