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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1257 (Heating, Ventilation & Air Conditioning) >> Repair Instructions >> Expansion (Orifice) Tube Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the air cleaner assembly. Refer to AIR CLEANER ASSEMBLY .
  3. Remove the vacuum brake booster. Refer to POWER BRAKE BOOSTER .
  4. Remove the condenser tube. Refer to Condenser Tube Replacement .
  5. Use J 26549-E  in order to remove the expansion (orifice) tube.

    Important:  DO NOT use any solvents or chemicals to clean the porous plastic inlet filter of the expansion (orifice) tube.

  6. Inspect the expansion (orifice) tube for the following conditions and clean or replace with a new tube as indicated:
    • Broken plastic frame (1); replace the tube.
    • Inlet filter (3) damaged or plugged with fine gritty material; replace the tube.
    • Inlet filter (3) coated with metal chips, flakes, or slivers; remove the coating with low pressure shop air ONLY and reuse if the filter is cleaned satisfactorily. Do NOT reuse the O-ring seals (2).
    Fig 1: Expansion (Orifice) Tube, Inlet Filter & O-Ring Seals
    G01672644Courtesy of GENERAL MOTORS CORP.
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