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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1709 (HVAC Systems - Troubleshooting) >> Repair Instructions >> Expansion (Orifice) Tube Replacement (Body VIN Code 3) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. 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 accumulator. Refer to Accumulator Replacement .
  3. Remove the coolant reservoir. Refer to COOLANT RECOVERY RESERVOIR REPLACEMENT in Engine Cooling.
    4. Fig 1: Evaporator Tube At Evaporator
    GM735916Courtesy of GENERAL MOTORS CORP.
  4. Remove the evaporator tube nut (3) at the evaporator (1).
  5. Remove the evaporator tube (4) from the evaporator (1).
    6. Fig 2: Evaporator Tube (Short Wheel Base)
    GM735915Courtesy of GENERAL MOTORS CORP.
  6. Remove the O-ring seal and discard.
  7. Remove the nut from the evaporator tube block fitting.
  8. Separate the evaporator tubes (4,6) at the block fitting.
  9. Use the J 26549-E  in order to remove the expansion tube. See Special Tools and Equipment .
  10. Remove the expansion tube from the evaporator tube (6).
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