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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1602 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Discharge Hose Replacement (LR4, LM7, LQ4, L18) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the discharge hose (1) to the vehicle.
  2. Connect the electrical connector to the A/C recirculation switch.
    Fig 1: Discharge Hose
    G01478997Courtesy of GENERAL MOTORS CORP.
  3. Install the discharge hose to the condenser using new sealing washers.
    NOTE: Refer to FASTENER NOTICE .
  4. Install the discharge hose nut to the condenser.

    Tighten 

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

  5. Install the upper air baffle. Refer to RADIATOR AIR BAFFLE AND DEFLECTOR REPLACEMENT - UPPER .
    6. Fig 2: Discharge Hose Nut
    G01478998Courtesy of GENERAL MOTORS CORP.
  6. Install the discharge hose (1) to the A/C compressor using new sealing washers.
  7. Install the discharge hose mounting bolt.

    Tighten 

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

  8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  9. Leak test the fittings of the component using the J 39400-A. 
Fig 3: Discharge Hose Mounting Bolt
G01478999Courtesy of GENERAL MOTORS CORP.
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