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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Heating, Ventilation And Air Conditioning - Gas) >> Repair Instructions >> Expansion (Orifice) Tube Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the evaporator tube. Refer to Evaporator Tube Replacement .
  2. Remove the evaporator tube from the condenser tube.
    Fig 1: Exploded View Of Evaporator Tube
    GM599787Courtesy of GENERAL MOTORS CORP.
  3. Use the J 26549-E  in order to remove the expansion orifice tube.
  4. Inspect the expansion (orifice) tube for the following conditions and clean or replace with a new tube as indicated:
    • Broken plastic frame, replace tube.
    • Filter screen (1,2) torn, damaged or plugged with fine gritty material, replace tube.
    • Brass orifice tube (3) damaged or plugged, replace 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 tube, install a new O-ring (4).

      Fig 2: Inspecting Expansion (Orifice) Tube
      GM296238Courtesy of GENERAL MOTORS CORP.
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