GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: When raising or supporting the engine for any reason, do not use a jack under the oil pan, any sheet metal, or the crankshaft pulley. Due to the small clearance between the oil pan and the oil pump screen, jacking against the oil pan may cause the pan to be bent against the pump screen. This will result in a damaged oil pickup unit.


    Object Number: 748343  Size: SH
  1. Raise and suitably support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the engine with a suitable jack. Do not load the engine mounts.
  3. Remove the engine mount through bolt and nut (left side shown, right side similar).
  4. Raise the engine only enough to permit removal of the engine mount.

  5. Object Number: 704680  Size: SH
  6. Remove the engine mount bolts.
  7. Remove the engine mount.

  8. Object Number: 748344  Size: SH
  9. If required, remove the engine mount bracket-to-engine bolts.
  10. Remove the engine mount bracket.

  11. Object Number: 748346  Size: SH
  12. If required, remove the engine mount bracket-to-frame bolts.
  13. Remove the engine mount bracket.

Installation Procedure


    Object Number: 748346  Size: SH
  1. If required, install the engine mount bracket.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the engine mount bracket-to-frame bolts.
  4. Tighten
    Tighten the engine mount bracket-to-frame bolts to 45 N·m (33 lb ft).


    Object Number: 748344  Size: SH
  5. If required, install the engine mount bracket.
  6. Install the engine mount bracket-to-engine bolts.
  7. Tighten
    Tighten the engine mount bracket-to-engine bolts to 54 N·m (40 lb ft).


    Object Number: 704680  Size: SH
  8. Install the engine mount.
  9. Install the engine mount bolts.
  10. Tighten
    Tighten the engine mount bolts to 58 N·m (43 lb ft).


    Object Number: 748343  Size: SH
  11. Lower the engine until the engine mount through bolt can be inserted.
  12. Install the engine mount through bolt and nut (left side shown, right side similar).
  13. Tighten
    Tighten the engine mount through bolt to 95 N·m (70 lb ft).

  14. Remove the engine support.
  15. Lower the vehicle.