GM Service Manual Online
For 1990-2009 cars only

Engine Mount Strut Bracket Replacement Upper

Removal Procedure


    Object Number: 61848  Size: SH
  1. Remove the engine mount strut from the engine mount strut bracket at the upper radiator support. Refer to Engine Mount Strut Replacement .

  2. Object Number: 462724  Size: SH
  3. Remove the horizontal bolts (1) from the engine mount strut bracket.
  4. Remove the vertical bolts (2) from the engine mount strut bracket.
  5. Remove the engine mount strut bracket from the upper radiator support.

Installation Procedure


    Object Number: 462724  Size: SH
  1. Position the engine mount strut bracket over the upper radiator support. Make sure that the engine mount strut bracket and the engine mount strut are aligned to the proper holes of the upper radiator support.
  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 vertical bolts (2) to the engine mount strut bracket.
  4. Tighten
    Tighten the engine mount strut bracket bolts to 28 N·m (21 lb ft).

  5. Install the horizontal bolts (1) to the engine mount strut bracket.
  6. Tighten
    Tighten the engine mount strut bracket bolt to 28 N·m (21 lb ft).

  7. Install the engine mount strut to the engine mount strut bracket at the upper radiator support. Refer to Engine Mount Strut Replacement .

Engine Mount Strut Bracket Replacement Left

Removal Procedure


    Object Number: 462754  Size: SH
  1. Remove the engine mount strut from the left engine mount strut bracket. Refer to Engine Mount Strut Replacement .

  2. Object Number: 647335  Size: SH
  3. Remove the engine exhaust crossover pipe. Refer to Exhaust Crossover Replacement .
  4. Remove the thermostat housing. Refer to Engine Coolant Thermostat Replacement in Engine Cooling.
  5. Remove the engine mount strut bracket bolts from the left engine mount strut bracket to the cylinder head.
  6. Remove the left engine mount strut bracket.

Installation Procedure


    Object Number: 647335  Size: SH
  1. Install the left engine mount strut bracket.
  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 strut bracket bolts through the engine mount strut bracket to the cylinder head.
  4. Tighten
    Tighten the engine mount strut bracket bolts to 70 N·m (52 lb ft).

  5. Install the thermostat housing. Refer to Engine Coolant Thermostat Replacement in Engine Cooling.
  6. Install the engine exhaust crossover pipe. Refer to Exhaust Crossover Replacement .

  7. Object Number: 462754  Size: SH
  8. Install the engine mount strut to the left engine mount strut bracket. Refer to Engine Mount Strut Replacement .

Engine Mount Strut Bracket Replacement Right

Removal Procedure

  1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

  2. Object Number: 462746  Size: SH
  3. Remove the right engine mount strut from the right engine mount strut bracket. Refer to Engine Mount Strut Replacement .

  4. Object Number: 190592  Size: SH
  5. If equipped with oil cooler, remove the oil cooler pipe bracket bolt from the right engine mount strut bracket.
  6. Reposition the air conditioning compressor. Refer to Air Conditioning Compressor Replacement in HVAC.

  7. Object Number: 54655  Size: SH
  8. Remove the vertical bolt from the right engine mount strut bracket.
  9. Remove the right engine mount strut bracket.

Installation Procedure


    Object Number: 54655  Size: SH
  1. Position the right engine mount strut bracket over the pin locator.
  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 vertical bolt through the right engine mount strut bracket to the cylinder head.
  4. Tighten
    Tighten the engine mount strut bracket bolt to 50 N·m (37 lb ft).

  5. Install the air conditioning compressor. Refer to Air Conditioning Compressor Replacement in HVAC.

  6. Object Number: 190592  Size: SH
  7. If equipped with oil cooler, install the oil cooler pipe bracket bolt to the right engine mount strut bracket.
  8. Tighten
    Tighten the oil cooler pipe bracket bolt to 10 N·m (89 lb in).


    Object Number: 462746  Size: SH
  9. Install the right engine mount strut to the right engine mount strut bracket. Refer to Engine Mount Strut Replacement .
  10. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.