GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD - RHD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Suction Screen Replacement

Tools Required
    • J 42220 Universal Leak Detection Lamp
    • J 44551 Suction Screen Kit

Removal Procedure
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the A/C compressor hose assembly bolt.
  3. Separate the A/C compressor hose assembly from the A/C compressor.

    4. Important: The suction screens are available in 3 different sizes.

  4. Select the proper size removal tool from the J 44551 .
  5. Remove the suction screen using the J 44551-31 suction screen removal tool.
    6. • Thread the forcing screw into the suction screen.
    • Tighten the nut on the forcing screw to remove the suction screen.

Installation Procedure
  1. Insert the J 44551-6 sizing tool into the suction hose to select the correct size suction screen.
  2. Insert the suction screen into the suction hose.
  3. Install the J 44551-3 mandrel to the J 44551-5.
  4. Install the J 44551-5 suction screen installation tool over the end of the suction hose and the suction screen.

    5. Important: Correct placement of the J 44551-5 is critical.

  5. Tighten the forcing screw of the J 44551-5.

    6. The suction screen is fully installed when the screen is flush with the end of the suction hose.

  6. Remove the J 44551-5 suction screen tool from the suction hose.
  7. Replace the seal washers. Refer to Compressor Sealing Washers Replacement .
  8. Install the A/C compressor hose assembly to the A/C compressor.

    9. 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.

  9. Install the A/C compressor hose assembly bolt.

    10. Tighten
    Tighten the bolt to 33 N·m (24 lb ft).

  10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  11. Leak test the fittings of the component using the J 42220 .