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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 160 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Hose Assembly Replacement (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install new sealing washers onto the A/C compressor hose assembly. Refer to Sealing Washer Replacement .
    2. Fig 1: Identifying A/C Compressor Hose Nut
    GM1539030Courtesy of GENERAL MOTORS CORP.
  2. Install the A/C compressor hose to the A/C compressor.
    3. NOTE: Refer to Fastener Notice .
  3. Install the A/C compressor hose nut to the A/C compressor.

    Tighten:  Tighten the nut to 17 N.m (12.5 lb ft).

  4. Install new seals washers to the A/C compressor hose assembly and evaporator tube. Refer to Sealing Washer Replacement .
    5. Fig 2: Identifying A/C Compressor Hose To Evaporator Tube
    GM1615544Courtesy of GENERAL MOTORS CORP.
  5. Install the A/C compressor hose to the evaporator tube.
  6. Install the A/C compressor hose to evaporator tube nut.

    Tighten:  Tighten the nut to 17 N.m (12.5 lb ft).

    7. Fig 3: Identifying A/C Compressor Hose Nut
    GM1615548Courtesy of GENERAL MOTORS CORP.
  7. Install the A/C compressor hose to the condenser.
    8. IMPORTANT: Use a 20mm wrench or pliers to hold the A/C condenser block fitting, this will prevent the A/C line from twisting while torquing the A/C line nut.
  8. Install the A/C compressor hose nut to the condenser.

    Tighten:  Tighten the nut to 17 N.m (12.5 lb ft).

  9. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 3.6L (LY7) engine.
  10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  11. Leak test the fittings of the component using J 39400-A  . See Special Tools .
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