GM Service Manual Online
For 1990-2009 cars only

Engine Mount Replacement Left

Removal Procedure

Important: When performing this service procedure, do not lift the engine block by the crankshaft balancer. Damage to the crankshaft balancer, crankshaft pulleys, or the crankshaft could occur.

Do not replace the left or right at the same time. They must be replaced in two separate service procedures, so as not to cause an alignment problem when re-installing the engine mounts.


    Object Number: 566012  Size: SH
  1. Disconnect both the battery negative cables from the batteries. Refer to Battery Replacement in Engine Electrical.
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Move the front wheel to the left against the steering stops.
  4. Remove the engine oil cooler line from the retainer.
  5. Remove the engine oil cooler liner retainer from the engine mount bracket.

  6. Object Number: 290320  Size: SH
  7. Install the pole jack on the engine locating tab just to the left rear of the power steering pump.

  8. Object Number: 561724  Size: SH
  9. Remove the engine mount through bolt and the nut.
  10. Raise the engine only enough to permit removal of the engine mount.

  11. Object Number: 565898  Size: SH
  12. If servicing a 2 wheel drive vehicle, remove the engine mount assembly bolts, nuts, and washers.
  13. Remove the engine mount from the frame.

  14. Object Number: 66190  Size: SH
  15. If servicing a 4 wheel drive vehicle, remove the engine mount assembly bolts, nuts, and washers (right side shown).
  16. Remove the engine mount assembly.

  17. Object Number: 560499  Size: SH
  18. Remove the engine mount bracket from the engine block.

Installation Procedure


    Object Number: 560499  Size: SH

    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.

  1. Install the engine mount assembly bolts, nuts, and washers (right side shown).
  2. Tighten
    Tighten the bolts to 54 N·m (40 lb ft).

    If servicing a 2 wheel drive vehicle, install the engine mount assembly.


    Object Number: 66189  Size: SH
  3. Install the engine mount assembly bolts, nuts, and washers (right side shown).
  4. Tighten

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

    Object Number: 66190  Size: SH
  5. If servicing a 4 wheel drive vehicle, install the engine mount assembly (right side shown).
  6. Tighten

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

    Object Number: 566012  Size: SH
  7. Install the engine oil cooler line retainer to the engine mount.
  8. Install the engine oil cooler liner in the retainer.

  9. Object Number: 561724  Size: SH
  10. Lower the engine until the engine mount through bolt can be inserted.
  11. Install the engine mount through bolt and the nut.
  12. Tighten
    Tighten the through bolt nut to 68 N·m (50 lb ft).


    Object Number: 290320  Size: SH
  13. Remove the pole jack from the vehicle.
  14. Remove the safety stands from the vehicle and lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  15. Connect both the battery negative cables to the batteries. Refer to Battery Replacement in Engine Electrical.

Engine Mount Replacement Right

Removal Procedure

Important: When performing this service procedure, do not lift the engine block by the crankshaft balancer. Damage to the crankshaft balancer, crankshaft pulleys, or the crankshaft could occur.

Do not replace the left or right at the same time. They must be replaced in two separate service procedures, so as not to cause an alignment problem when re-installing the engine mounts.


    Object Number: 561728  Size: SH
  1. Disconnect both the battery negative cables from the batteries. Refer to Battery Replacement 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. If servicing a 2 wheel drive vehicle, remove the engine mount assembly bolts, nuts, and washers.
  9. Remove the engine mount assembly from the frame.

  10. Object Number: 66190  Size: SH
  11. If servicing a 4 wheel drive vehicle, remove the engine mount assembly bolts, nuts, and washers.
  12. Remove the engine mount assembly from the frame.

  13. Object Number: 560501  Size: SH
  14. 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. If servicing a 2 drive vehicle, 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: 66190  Size: SH
  8. If servicing a 4 wheel drive vehicle, install the engine mount to the frame.
  9. 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
  10. Lower the engine assembly until the engine mount through bolt can be installed.
  11. Install the engine mount through bolt.
  12. Tighten
    Tighten the through nut and bolt to 68 N·m (50 lb ft).

  13. Remove the pole jack from the vehicle.
  14. Install the starter in the vehicle. Refer to Starter Motor Replacement in Engine Electrical.
  15. Remove the safety stands and lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  16. Connect the battery negative cables to the batteries. Refer to Battery Replacement Engine Electrical.