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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1151 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Suction Hose Replacement (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a new sealing washer onto the compressor end of the suction hose. Refer to Sealing Washer Replacement .
  2. Install the suction hose.
  3. Remove the cap or tape from the compressor suction port.
    4. Fig 1: View Of Suction Hose To A/C Compressor Nut
    GM791146Courtesy of GENERAL MOTORS CORP.
  4. Connect the suction hose to the compressor.
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the nut that secures the suction hose to the compressor.

    Tighten:  Tighten the nut to 16 N.m (12 lb ft).

  6. Install a new sealing washer between the suction hose and the evaporator outlet tube fitting. Refer to Sealing Washer Replacement .
  7. Remove the cap or tape from the evaporator outlet tube.
    8. Fig 2: View Of Evaporator Outlet Tube From The Suction Hose
    GM826687Courtesy of GENERAL MOTORS CORP.
  8. Connect the suction hose to the evaporator outlet tube fitting.
  9. Install the bolt to secure the suction hose to the evaporator outlet tube.

    Tighten:  Tighten the bolt to 16 N.m (12 lb ft).

  10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  11. Use J 39400-A  to leak test the fittings of the component
  12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (LA1) or Battery Negative Cable Disconnect/Connect Procedure (LY7) in Engine Electrical.
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