GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 28467-90A Engine Support Adapters
    • J 28467-B Universal Engine Support Fixture

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  3. Disconnect the intake air temperature (IAT) sensor electrical connector.
  4. Remove the air inlet duct from the throttle body.
  5. Remove the engine mount struts. Refer to Engine Mount Strut Replacement - Left Side , and Engine Mount Strut Replacement - Right Side .
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  8. Object Number: 317814  Size: SH
  9. Remove the right engine splash shield retainers and the splash shield.
  10. Remove the power steering oil cooler pipe brackets from the frame.

  11. Object Number: 372626  Size: SH
  12. Remove the right exhaust manifold pipe stud nuts from the catalytic converter.

  13. Object Number: 50411  Size: SH
  14. Remove the engine mount lower nuts from the frame.
  15. Lower the vehicle.
  16. Install the engine support fixture. Refer to Engine Support Fixture .
  17. Use the engine support fixture to raise the engine.
  18. Raise the vehicle.

  19. Object Number: 97800  Size: SH
  20. Remove the left engine mount bracket bolts from the engine.

  21. Object Number: 97804  Size: SH
  22. Remove the right engine mount bracket bolts from the engine.

  23. Object Number: 43405  Size: SH
  24. Remove the engine mount upper nuts.
  25. Remove the engine mount from the engine mount bracket .
  26. Remove the engine mount bracket from the engine.

Installation Procedure

  1. Install the engine mount bracket to the engine.

  2. Object Number: 43405  Size: SH
  3. Install the engine mount to the engine mount bracket.
  4. 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.

  5. Install the engine mount upper nuts.
  6. Tighten
    Tighten the engine mount upper nuts to 78 N·m (58 lb ft).


    Object Number: 97804  Size: SH
  7. Loosely install the right engine mount bracket bolts to the engine.

  8. Object Number: 97800  Size: SH
  9. Loosely install the left engine mount bracket bolts to the engine.
  10. Tighten
    Tighten the engine mount bracket bolts to 102 N·m (75 lb ft).

  11. Lower the vehicle.
  12. Use the engine support fixture to lower the engine.
  13. Raise the vehicle.

  14. Object Number: 50411  Size: SH
  15. Install the engine mount lower nuts to the frame.
  16. Tighten
    Tighten the engine mount lower nuts to 78 N·m (58 lb ft).


    Object Number: 372626  Size: SH
  17. Install the catalytic converter to the right exhaust manifold.
  18. Install the right exhaust manifold pipe stud nuts.
  19. Tighten
    Tighten the right exhaust manifold pipe stud nuts to 32 N·m (24 lb ft).

  20. Install the power steering oil cooler pipe brackets to the frame.

  21. Object Number: 317814  Size: SH
  22. Install the right engine splash shield and retainers.
  23. Install the right front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  24. Lower the vehicle.
  25. Remove the engine support fixture.
  26. Install the engine mount struts. Refer to Engine Mount Strut Replacement - Left Side , and Engine Mount Strut Replacement - Right Side .
  27. Install the air inlet duct to the throttle body.
  28. Connect the intake air temperature (IAT) sensor electrical connector.
  29. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  30. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.