GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Astro - 2WD 🢒 Engine 🢒 Engine Electrical 🢒 Accessory Mounting Brackets Replacement

Accessory Mounting Brackets Replacement PS Pump Mounting Bracket

Removal Procedure


    Object Number: 173171 Size: SH
  1. Remove the engine cooling fan. Refer to Fan Replacement in Engine Cooling.
  2. Remove the drive belt. Refer to Drive Belt Replacement .
  3. Remove the oil filler tube bolt.
  4. Remove the oil filler tube from the valve rocker arm cover.

    5. Object Number: 280385 Size: SH

    Important: Do not evacuate the air conditioning system.

  5. Remove the mounting bolts for the air conditioning (A/C) compressor, if equipped.
  6. Move the A/C compressor aside and support.
  7. Remove the drive belt idler pulley if not equipped with A/C. Refer to Drive Belt Idler Pulley Replacement .
  8. Remove the power steering pump pulley. Refer to Power Steering Pump Replacement in Power Steering Systems.

    9. Object Number: 288829 Size: SH
  9. Remove the three bolts holding the power steering pump to the power steering pump mounting bracket.

    10. Object Number: 188295 Size: SH
  10. Remove the three bolts and nut holding the power steering pump mounting bracket to the engine.
  11. Slide the power steering pump mounting bracket off the stud and the power steering pump.

Installation Procedure

    Object Number: 188295 Size: SH
  1. Slide the power steering pump mounting bracket on the stud and the power steering pump.

    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.

  2. Install the power steering pump mounting bracket three bolts and the nut.

    3. Tighten
    Tighten the power steering pump mounting bracket bolts and nut to 41 N·m (30 lb ft).


    Object Number: 288829 Size: SH
  3. Install the power steering pump mounting bracket to the power steering pump.

    4. Tighten
    Tighten the power steering pump bolts to 50 N·m (37 lb ft).

  4. Install the power steering pump pulley. Refer to Power Steering Pump Replacement in Power Steering Systems.
  5. Install the air conditioning compressor, if equipped. Refer to Air Conditioning Compressor Replacement in HVAC Systems with A/C - Manual.
  6. Install the drive belt idler pulley if not equipped with A/C. Refer to Drive Belt Idler Pulley Replacement .

    7. Object Number: 173171 Size: SH
  7. Install the oil filler tube in the valve rocker arm cover.
  8. Install the oil filler tube bolt.

    9. Tighten
    Tighten the oil filler tube bolt to 25 N·m (18 lb ft).

  9. Install the drive belt. Refer to Drive Belt Replacement .
  10. Install the engine cooling fan. Refer to Fan Replacement in Engine Cooling.

Accessory Mounting Brackets Replacement Generator Mounting Bracket

Removal Procedure

    Object Number: 340790 Size: SH
  1. Disconnect the battery negative cable. Refer to Battery Replacement in Engine Electrical.
  2. Remove the engine cooling fan. Refer to Fan Replacement in Engine Cooling.
  3. Remove the drive belt. Refer to Drive Belt Replacement .
  4. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  5. Remove the engine wiring harness bracket from the generator mounting bracket.

    6. Object Number: 196643 Size: SH
  6. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .
  7. Remove the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement .
  8. Remove the two bolts and nut holding the generator mounting bracket to the engine.
  9. Slide the generator mounting bracket off of the stud.

Installation Procedure

    Object Number: 196643 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.

  1. Slide the generator mounting bracket on the stud.
  2. Instal the generator mounting bracket two bolts and the nut.

    3. Tighten
    Tighten the generator mounting bracket bolts and the nut to 41 N·m (30 lb ft).

  3. Install the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement .
  4. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .

    5. Object Number: 340790 Size: SH
  5. Install the engine wiring harness bracket and bolt to the generator mounting bracket.

    6. Tighten
    Tighten the engine wiring harness bracket bolt to 25 N·m (18 lb ft).

  6. Install the generator. Refer to Generator Replacement in Engine Electrical.
  7. Install the drive belt. Refer to Drive Belt Replacement .
  8. Install the engine cooling fan. Refer to Fan Replacement in Engine Cooling.
  9. Connect the battery negative cable. Refer to Battery Replacement in Engine Electrical.