GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Suction Screen Replacement

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

Removal Procedure

    Object Number: 812271 Size: SH
  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 (1) from J 44551 .
  5. Remove the suction screen using the J 44551 -31 suction screen removal tool.
    6. 5.1. Thread the forcing screw into the suction screen.
    5.2. Tighten the nut on the forcing screw to remove the suction screen.

Installation Procedure

    Object Number: 812268 Size: SH
  1. Insert the J 44551 -6 sizing tool (1) into the suction hose to select the correct size suction screen.

    2. Object Number: 812269 Size: SH
  2. Insert the suction screen into the suction hose.
  3. Install theJ 44551 -3 mandrel (1) to J 44551 -5.

    4. Object Number: 812270 Size: SH
  4. Install the J 44551 -5 suction screen installation tool (3) over the end of the suction hose and the suction screen (2).

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

  5. Tighten the forcing screw of 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: Refer to Fastener Notice in the Preface section.

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

    10. Tighten
    Tighten the bolt to 32 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 J 42220 .