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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 741 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Thermal Expansion Valve Replacement - Auxiliary >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the cap or tape from the evaporator lines.
  2. Install the new sealing washers onto the evaporator lines. Refer to SEALING WASHER REPLACEMENT   . 
  3. Install the auxiliary TXV to the evaporator core.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    Fig 1: Installing Auxiliary TXV To Evaporator Core
    G01482713Courtesy of GENERAL MOTORS CORP.
  4. Install the auxiliary TXV to the evaporator core mounting bolts.

    Tighten 

    Tighten the bolts to 3.5 N.m (31 lb in).

  5. Remove the cap or tape from the A/C lines.
  6. Install the new sealing washers onto the A/C line. Refer to SEALING WASHER REPLACEMENT   . 
  7. Install the A/C lines to the auxiliary TXV.
    Fig 2: Installing A/C Lines To Auxiliary TXV
    G01482714Courtesy of GENERAL MOTORS CORP.
  8. Install the auxiliary TXV line block fitting retaining bolt.

    Tighten 

    Tighten the nut to 11 N.m (97 lb in).

  9. Install the auxiliary TXV line clamp to the HVAC module assembly.
  10. Install the auxiliary TXV line clamp screw.

    Tighten 

    Tighten the screw to 1.6 N.m (14 lb in).

    Fig 3: Installing Auxiliary TXV Line Clamp & Screw
    G01482715Courtesy of GENERAL MOTORS CORP.
  11. Install a new foam wrap to the auxiliary TXV.
  12. Evacuate and recharge the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING   . 
  13. Leak test the fittings of the component using J 39400-A. 
  14. Install the left lower quarter trim panel.
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