GM Service Manual Online
For 1990-2009 cars only

Engine Mount Strut Bracket Replacement Upper Radiator Support

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: 190491  Size: SH
  3. Remove the horizontal engine mount strut bracket bolt from the engine mount strut bracket.
  4. Remove the vertical engine mount strut bracket bolts from the engine mount strut bracket.
  5. Remove the engine mount strut bracket from the upper radiator support.

Installation Procedure


    Object Number: 612739  Size: SH
  1. Position the engine mount strut bracket over the upper radiator support. Ensure that the engine mount strut bracket and the engine mount strut are aligned to the proper holes of the upper radiator support. The proper torque sequence is shown.
  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 and tighten the engine mount strut bracket bolts. The following is a mandatory torque sequence:
  4. 2.1. Tighten the horizontal engine mount strut bracket bolt to the engine mount strut bracket.

    Tighten
    Tighten the horizontal engine mount strut bracket bolt to 26 N·m (19 lb ft).

    2.2. Tighten the vertical engine mount strut bracket bolts to the engine mount strut bracket.

    Tighten
    Tighten the vertical engine mount strut bracket bolts to 26 N·m (19 lb ft).


    Object Number: 61848  Size: SH
  5. 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: 612724  Size: SH
  1. Remove the engine mount strut from the left engine mount strut bracket. Refer to Engine Mount Strut Replacement .
  2. Remove the exhaust crossover pipe. Refer to Exhaust Crossover Replacement .
  3. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.

  4. Object Number: 61845  Size: SH
  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: 61845  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).


    Object Number: 612724  Size: SH
  5. Install the engine mount strut from the left engine mount strut bracket. Refer to Engine Mount Strut Replacement .
  6. Install the exhaust crossover pipe. Refer to Exhaust Crossover Replacement .
  7. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.

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: 612726  Size: SH
  3. Remove the right engine mount strut from the right engine mount strut bracket. Refer to Engine Mount Strut Replacement .
  4. Remove the drive belt from the AC compressor. Refer to Drive Belt Replacement .
  5. Remove and place the air conditioning compressor aside. Refer to Air Conditioning Compressor Replacement in HVAC.

  6. Object Number: 54655  Size: SH
  7. Remove the vertical bolt from the right engine mount strut bracket.
  8. 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. Install the drive belt to the AC compressor. Refer to Drive Belt Replacement .

  7. Object Number: 612726  Size: SH
  8. Install the right engine mount strut to the right engine mount strut bracket. Refer to Engine Mount Strut Replacement .
  9. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.