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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 >> Thermal Expansion Valve Replacement - Auxiliary >> Installation Procedure

Installation 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. Install the TXV to the core.
    NOTE: Refer to FASTENER NOTICE in Caution and Notices.
    Fig 1: Installing Auxiliary Thermal Expansion Valve
    G01645682Courtesy of GENERAL MOTORS CORP.
  2. Install the nuts that retain the TXV to the evaporator core.

    Tighten 

    Tighten the nuts that retain the TXV to the evaporator core to 5 N.m (44 lb in).

    Important:  Install the retaining clip and the capillary tube in the location and the orientation that was noted during disassembly.

  3. Install the capillary tube and the retaining clip to the evaporator core.
  4. Pack the sealer around the TXV as found during disassembly.
  5. Install the evaporator core. Refer to EVAPORATOR CORE REPLACEMENT - AUXILIARY .
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