GM Service Manual Online
For 1990-2009 cars only

Engine Mount Replacement Left

Removal Procedure


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

  3. Object Number: 208569  Size: SH
  4. Remove the air intake duct from the throttle body and the air cleaner box.
  5. Install the engine support fixture. Refer to Engine Support Fixture .
  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: 220590  Size: SH
  9. Remove the engine mount heat shield nuts.
  10. Remove the engine mount heat shield.

  11. Object Number: 220588  Size: SH
  12. Remove the engine mount bracket to crossmember bolts.
  13. Lower the vehicle.
  14. Raise the left side of the engine using the support fixture in order to remove tension on the engine mount.
  15. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  16. Object Number: 220591  Size: SH
  17. Remove the engine mount bracket to block studs.
  18. Remove the engine mount assembly.
  19. 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 assembly.

  3. Object Number: 220591  Size: SH
  4. Loosely install the engine mount bracket to block studs.
  5. Lower the vehicle.
  6. Lower the left side of the engine using the support fixture.
  7. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  8. Object Number: 220588  Size: SH
  9. Install the engine mount bracket to crossmember bolts.
  10. Tighten

        • Tighten the engine mount bracket to crossmember bolts to 58 N·m (43 lb ft).
        • Tighten the engine mount bracket to block studs to 50 N·m (37 lb ft).
  11. Tighten the engine mount through bolt and mount nut.
  12. Tighten

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

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

  16. Install the left oxidation catalytic converter. Refer to Oxidation Catalytic Converter Replacement in Engine Exhaust.
  17. Lower the vehicle.
  18. Remove the engine support fixture.

  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.

Engine Mount Replacement Right

Removal Procedure


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

  3. Object Number: 208569  Size: SH
  4. Remove the air intake duct from the throttle body and the air cleaner box.
  5. Install the engine support fixture. Refer to Engine Support Fixture .
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  7. Object Number: 487459  Size: SH
  8. Disconnect the oil level sensor electrical connector (1).

  9. Object Number: 211595  Size: SH
  10. Remove the negative battery cable lead to engine block bolt (1).
  11. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.

  12. Object Number: 220585  Size: SH
  13. Remove the engine mount bracket to crossmember bolts.
  14. Lower the vehicle.
  15. Raise the right side of the engine using the support fixture in order to remove tension on the engine mount.
  16. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  17. Object Number: 220586  Size: SH
  18. Remove the engine mount bracket to block bolts.
  19. Remove the engine mount assembly.
  20. Separate the upper and lower mount on the bench.

Installation Procedure


    Object Number: 220586  Size: SH
  1. Loosely install the upper and lower mount together on the bench.
  2. Loosely install the engine mount bracket to block bolts.
  3. Lower the vehicle.
  4. Lower the right side of the engine using the support fixture.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  6. Object Number: 220585  Size: SH
  7. Install the engine mount bracket to crossmember bolts.
  8. Tighten

        • Tighten the engine mount bracket to crossmember bolts to 58 N·m (43 lb ft).
        • Tighten the engine mount bracket to block bolts to 50 N·m (37 lb ft).
  9. Tighten the engine mount through bolt and mount nut.
  10. Tighten

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

    Object Number: 211595  Size: SH
  11. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  12. Install the negative battery cable lead to engine block bolt (1).
  13. Tighten
    Tighten the negative battery cable lead to engine block bolt (1) to 32 N·m (24 lb ft)


    Object Number: 487459  Size: SH
  14. Connect the oil level sensor electrical connector (1).
  15. Lower the vehicle.
  16. Remove the engine support fixture.

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

  19. Object Number: 208553  Size: SH
  20. Connect the IAT sensor electrical connector.
  21. Connect the MAF sensor electrical connector.