GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 561728  Size: SH

    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.

    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. Lifting the engine in an unapproved manner may cause component damage.

  1. Disconnect both the battery negative cables from the batteries. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the starter from the vehicle. Refer to Starter Motor Replacement in Engine Electrical.
  4. Install the pole jack on the right rear corner of the engine block above the starter opening.
  5. Remove the engine mount through-bolts from the engine mounts.
  6. Raise the engine only enough to permit removal of the engine mount.

  7. Object Number: 66189  Size: SH
  8. Remove the engine mount assembly bolts, nuts, and washers.
  9. Remove the engine mount assembly from the frame.

  10. Object Number: 560501  Size: SH
  11. Remove the engine mount bracket from the engine block.

Installation Procedure


    Object Number: 560501  Size: SH
  1. Install the engine mount bracket to the engine block.
  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 bolts, nuts, and washer.
  4. Tighten
    Tighten the bolts to 54 N·m (40 lb ft).


    Object Number: 66189  Size: SH
  5. Install the engine mount to the frame.
  6. Install the engine mount bolts, nuts, and washer.
  7. Tighten

        • Tighten the bolts to 59 N·m (44 lb ft).
        • Tighten the nuts to 45 N·m (33 lb ft).

    Object Number: 561728  Size: SH
  8. Lower the engine assembly until the engine mount through-bolt can be installed.
  9. Install the engine mount through-bolt.
  10. Tighten
    Tighten the through-bolt to 68 N·m (50 lb ft).

  11. Remove the pole jack from the vehicle.
  12. Install the starter in the vehicle. Refer to Starter Motor Replacement in Engine Electrical.
  13. Remove the safety stands and lower the vehicle.
  14. Connect the battery negative cables to the batteries. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.