GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Notice: Broken engine mountings can cause misalignment of certain drive-train components. Misalignment of drive-train components causes eventual destruction of the drive-train components.

    If one engine mount breaks, the rest of the engine mounts will have increased stress put on them. This could cause the rest of the engine mounts to break.

  1. Support the engine with a suitable lifting device.
  2. Do not load the engine mounting.

  3. Raise the engine only enough to remove the engine mount.

  4. Object Number: 2491  Size: SH
  5. Remove the left-side engine mount through-bolt.

  6. Object Number: 1140  Size: SH
  7. Remove the left-side engine mount.

  8. Object Number: 3440  Size: SH
  9. Remove the right-side engine mount through-bolt.

  10. Object Number: 1139  Size: SH
  11. Remove the right-side engine mount.

Installation Procedure

    Notice: Broken engine mountings can cause misalignment of certain drive-train components. Misalignment of drive-train components causes eventual destruction of the drive-train components.

    If one engine mount breaks, the rest of the engine mounts will have increased stress put on them. This could cause the rest of the engine mounts to break.


    Object Number: 1140  Size: SH
  1. Install the left-side engine mount.
  2. Tighten
    Tighten the left-side engine mount bolt to 53 N·m (39 lb ft). Refer to

    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.

    in General Information.


    Object Number: 2491  Size: SH
  3. Install the left-side engine mount through-bolt.
  4. Tighten
    Tighten the left-side engine mount through-bolt to 51 N·m (38 lb ft).


    Object Number: 1139  Size: SH
  5. Install the right-side engine mount.
  6. Tighten
    Tighten the right-side engine mount bolts to 53 N·m (39 lb ft).


    Object Number: 3440  Size: SH
  7. Install the right-side engine mount through-bolt.
  8. Tighten
    Tighten the right-side engine mount through-bolt to 51 N·m (38 lb ft).

  9. Remove the lifting device.