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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Compressor Replacement (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: Refer to Fastener Notice .
  1. Install the compressor drain plug.

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

    2. Fig 1: View Of Air Conditioning Compressor Bolts & Nut
    GM1539064Courtesy of GENERAL MOTORS CORP.
  2. Position the A/C compressor onto the front A/C compressor mounting stud and the rear A/C compressor mounting bolt (1).
  3. Install the A/C compressor front bolt (3).

    Tighten:  Tighten the bolts to 50 N.m (36 lb ft).

  4. Install the A/C compressor front mounting nut (2).

    Tighten:  Tighten the nut to 50 N.m (36 lb ft).

  5. Tighten the A/C compressor rear bolt.

    Tighten:  Tighten the bolt to 50 N.m (36 lb ft).

    6. Fig 2: Identifying A/C Compressor Hose Nut
    GM1539030Courtesy of GENERAL MOTORS CORP.
  6. Install new sealing washers. Refer to Sealing Washer Replacement .
  7. Install the compressor hose to the A/C compressor.
  8. Install the nut to the A/C compressor hose.

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

  9. Connect the electrical connector to the A/C compressor.
  10. Install the splash shield to the right side of the engine. Refer to Engine Splash Shield Replacement .
  11. Install the drive belts. Refer to Drive Belt Replacement .
  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  . See Special Tools .
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