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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 802 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Air Conditioning (A/C) High Pressure Switch Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine cover. Refer to ENGINE COVER REPLACEMENT in Interior Trim.
  2. Recover the refrigerant the system. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  3. Clean the control A/C high pressure switch area before removing the snap ring.
    Fig 1: View Of Air Conditioning High Pressure Switch Electrical Connector
    G01645588Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the electrical connector from the A/C high pressure switch (2) in the rear head of the compressor.
  5. Remove the A/C high pressure switch snap ring using a pair of 90 degree angle pliers or J 5403. 
  6. Remove the A/C high pressure switch (2) from the compressor.
  7. Remove the old O-ring seal from the A/C high pressure switch cavity using the J 9553-01. 
  8. Inspect the A/C high pressure switch cavity and the O-ring groove in the rear head for dirt or foreign material. Clean the components as necessary.
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