GM Service Manual Online
For 1990-2009 cars only

Engine Mount Replacement Right Side

Removal Procedure

Tools Required

    • J 41044 Engine Support Adapters
    • J 42451 Engine Support Adapter Kit
    • J 28467-B Universal Support Fixture
    • J 36462-A Engine Support Adapter Leg

Right Side


    Object Number: 487459  Size: SH
  1. Support the engine using the J 42451 ,J 28467-B and the J 36462-A .
  2. 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.

  3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  5. Disconnect the low oil level sensor electrical connector (1).

  6. Object Number: 211595  Size: SH
  7. Remove the negative lead bolt (1) and lead (2) from the engine block.

  8. Object Number: 220585  Size: SH
  9. Remove the engine mount bracket to crossmember bolts.
  10. Lower the vehicle.
  11. Raise the right side of the engine with the support fixture.
  12. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  13. Object Number: 220586  Size: SH
  14. Remove the engine mount bracket to block bolts.
  15. Remove the engine mount from the vehicle.
  16. Separate the upper and lower mount on the bench.

Installation Procedure

  1. Loosely install the upper and lower mount together on the bench.
  2. Install the engine mount to the vehicle.

  3. Object Number: 220586  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.

  4. Install the engine mount bracket to block bolts.
  5. Tighten
    Tighten the engine mount bracket to block bolts to 50 N·m (37 lb ft).

  6. Lower the vehicle.
  7. Lower the right side of the engine.
  8. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  9. Object Number: 220585  Size: SH
  10. Install the engine mount bracket to crossmember bolts.
  11. Tighten
    Tighten the engine mount bracket to crossmember bolts to 58 N·m (43 lb ft).

  12. Tighten the engine mount through bolt and mount nut.
  13. Tighten

        • Tighten the through bolt to 95 N·m (70 lb ft).
        • Tighten the engine mount nut to 80 N·m (59 lb ft).

    Object Number: 211595  Size: SH
  14. Install the negative lead (2) and bolt (1) to the engine block.
  15. Tighten
    Tighten the negative lead bolt (1) to the engine block to 32 N·m (24 lb ft)


    Object Number: 487459  Size: SH
  16. Connect the low oil level sensor electrical connector (1).
  17. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  18. Lower the vehicle.

Engine Mount Replacement Left Side

Removal Procedure

Tools Required

    • J 41044 Engine Support Adapters
    • J 42451 Engine Support Adapter Kit
    • J 28467-B Universal Support Fixture
    • J 36462-A Engine Support Adapter Leg

    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: 208553  Size: SH
  1. Disconnect the intake air temperature (IAT) sensor electrical connector at the duct.
  2. Disconnect the mass airflow (MAF) sensor electrical connector at the duct.

  3. Object Number: 208569  Size: SH
  4. Remove the air intake duct from the throttle body and the air cleaner box.
  5. Support the engine using theJ 42451 ,J 28467-B , and the J 36462-A .
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the left oxidation catalytic converter. Refer to Oxidation Catalytic Converter Replacement in Engine Exhaust.

  8. Object Number: 220588  Size: SH
  9. Remove the engine mount bracket to crossmember bolts.
  10. Lower the vehicle.
  11. Raise the left side of the engine with the support fixture.
  12. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  13. Object Number: 220590  Size: SH
  14. Remove the engine mount heat shield nuts.
  15. Remove the engine mount heat shield.

  16. Object Number: 220591  Size: SH
  17. Remove the engine mount bracket to block studs.
  18. Remove the engine mount from the vehicle.
  19. Separate the upper and lower mount on the bench.

Installation Procedure


    Object Number: 220591  Size: SH
  1. Loosely install the upper and lower mount together on the bench.
  2. Install the engine mount to the vehicle.
  3. 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.

  4. Install the engine mount bracket to block studs.
  5. Tighten
    Tighten the engine mount bracket to block studs to 50 N·m (37 lb ft).


    Object Number: 220590  Size: SH
  6. Install the engine mount heat shield.
  7. Install the engine mount heat shield nuts.
  8. Tighten
    Tighten the engine mount heat shield nuts to 10 N·m (89 lb in).

  9. Lower the vehicle.
  10. Lower the right side of the engine.
  11. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  12. Object Number: 220588  Size: SH
  13. Install the engine mount bracket to crossmember bolts.
  14. Tighten
    Tighten the engine mount bracket to crossmember bolts to 58 N·m (43 lb ft).

  15. Tighten the engine mount through bolt and mount nut.
  16. Tighten

        • Tighten the through bolt to 95 N·m (70 lb ft).
        • Tighten the engine mount nut to 80 N·m (59 lb ft).
  17. Install the left oxidation catalytic converter. Refer to Oxidation Catalytic Converter Replacement in Engine Exhaust.
  18. Lower the vehicle.

  19. Object Number: 208569  Size: SH
  20. Install the air intake duct to the throttle body and the air cleaner box.

  21. Object Number: 208553  Size: SH
  22. Connect the IAT sensor electrical connector.
  23. Connect the MAF sensor electrical connector.