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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1296 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Compressor Replacement (LLY/LMM) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of A/C Compressor & Bolts (LB7)
    GM652574Courtesy of GENERAL MOTORS CORP.
  1. Remove the caps or tape from the hose and line ends.
  2. Install the A/C compressor.
    3. CAUTION: Refer to Fastener Caution .
  3. Install the A/C compressor mounting bolts.

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

  4. Connect the electrical connection.
    5. Fig 2: Identifying A/C Discharge & Suction Hoses (LB7)
    GM1240158Courtesy of GENERAL MOTORS CORP.
  5. Install the A/C discharge hose (1) to the compressor (3) using new sealing washers.
  6. Install the A/C discharge hose bolt (2) to the A/C compressor (3).

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

    7. Fig 3: View Of A/C Suction Hose (LB7)
    GM1240163Courtesy of GENERAL MOTORS CORP.
  7. Install the A/C suction hose (1) to the compressor (3) using new sealing washers.
  8. Install the A/C suction hose bolt (2) to the A/C compressor (3).

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

  9. Install the drive belt. Refer to Drive Belt Replacement .
  10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging (Non-HP2)  or Refrigerant Recovery and Recharging (HP2) .
  11. Leak test the fittings of the component using the J 39400-A  . See Special Tools .
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