LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1311 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Expansion (Orifice) Tube Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Rear Evaporator Tube & Bolt
    GM621746Courtesy of GENERAL MOTORS CORP.
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the front evaporator tube to rear evaporator tube retaining bolt.
    3. IMPORTANT: Cap or tape the open A/C Components immediately to prevent system contamination.
  3. Disconnect the front evaporator tube from the rear evaporator tube.
  4. Remove and discard the O-ring.
  5. Cap or tape the rear evaporator tube.
    6. Fig 2: Front Evaporator Tube & Orifice Tube
    GM621750Courtesy of GENERAL MOTORS CORP.
  6. Using J 26549-E  remove the orifice tube. See Special Tools and Equipment .
    7. Fig 3: Inspecting Expansion (Orifice) Tube For Damage
    GM296238Courtesy of GENERAL MOTORS CORP.
  7. Inspect the expansion (orifice) tube for the following conditions and clean or replace with a new tube as indicated:
    • Broken plastic frame; replace the tube
    • Filter screen (1, 2) torn, damaged or plugged with fine gritty material; replace the tube
    • Brass orifice tube (3) damaged or plugged; replace the tube
    • Filter screen (1) coated with metal chips, flakes or slivers; coating may be removed with low pressure shop air and reused if cleaned satisfactorily

      If reusing the orifice tube, install a new O-ring (4)

scientia non olet · About LEMON Manuals