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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1100 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Thermal Expansion Valve Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Lubricate the O-rings. Refer to O-Ring Replacement .
  2. Install the A/C lines into the TXV.
    3. Fig 1: View Of TXV Evaporator Core
    GM802747Courtesy of GENERAL MOTORS CORP.
  3. Carefully slide the TXV onto the evaporator core until seated.
    4. Fig 2: View Of TXV Line Bracket
    GM802746Courtesy of GENERAL MOTORS CORP.
  4. Install the TXV line bracket.
    5. Fig 3: View Of TXV To Evaporator Bolts
    GM802742Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  5. Install the bolts (1) that secure the TXV to the evaporator.

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

    6. Fig 4: View Of HVAC Line Clamp
    GM817516Courtesy of GENERAL MOTORS CORP.
  6. Install the HVAC line clamp.
    7. Fig 5: View Of HVAC Line Clamp Screw
    GM817514Courtesy of GENERAL MOTORS CORP.
  7. Install the HVAC line clamp screw.

    Tighten:  Tighten the screw to 1 N.m (8 lb in).

    8. Fig 6: View Of TXV Insulation
    GM802735Courtesy of GENERAL MOTORS CORP.
  8. Install new insulation (1) onto the lines and TXV.
  9. Install the instrument panel (I/P) carrier. Refer to Instrument Panel Carrier Replacement .
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