GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN 6625 Crankshaft Locking Device

For equivalent regional tools, refer to Special Tools.

Removal Procedure

  1. Open the Hood.
  2. Raise the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.
  3. Remove the front compartment splash shield. Refer to Front Compartment Splash Shield Replacement.
  4. Remove the drive belt. Refer to Drive Belt Replacement.

  5. Object Number: 2026543  Size: SH
  6. Remove the bolt (1).

  7. Object Number: 2027000  Size: SH
  8. Install the EN 6625 locking device  (2) to lock the crankshaft.
  9. Install the bolt (1).

  10. Object Number: 2027569  Size: SH
  11. Remove the crankshaft balancer bolt (1).
  12. Remove the crankshaft balancer (2).

Installation Procedure


    Object Number: 2027569  Size: SH
  1. Install the crankshaft balancer (2).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the NEW crankshaft balancer bolt (1) and tighten to  95 N·m (70 lb ft) + 45 degrees + 15 degrees.

  4. Object Number: 2027000  Size: SH
  5. Remove the bolt (1).
  6. Remove EN 6625 locking device  (2) to unlock the crankshaft.

  7. Object Number: 2026543  Size: SH
  8. Install the bolt (1) and tighten to  75 N·m (56 lb ft).
  9. Install the drive belt. Refer to Drive Belt Replacement.
  10. Install the front compartment splash shield. Refer to Front Compartment Splash Shield Replacement.
  11. Lower the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.
  12. Close the hood.