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Refrigerant Line: Replacement

WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Discharge refrigerant from refrigeration system.
  2. Replace faulty tube or hose.
    CAUTION: Cap the open fittings immediately to keep moisture or dirt out of the system.
  3. Tighten joint of bolt or nut to specified torque.
    NOTE: Connections should not be torqued tighter than the specified torque.
    Fig 1: Displaying Torque Specifications For A/C Parts
    G01145169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Evacuate air in refrigeration system and charge with refrigerant.
    1. Specified amount:
      1. Single A/C:  650+/- 50 g (22.93 +/- 1.76 oz.)
      2. Dual A/C:  900 +/- 50 g (31.74 +/- 1.76 oz.)
  5. Inspect for leakage of refrigerant.
    1. Using a gas leak detector, check for leakage of refrigerant.
  6. Inspect air conditioner operation.
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