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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 >> Heater Hose Replacement - Outlet (LB7) >> 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 outlet heater hose.
  2. Install the outlet heater hose to the outlet pipe assembly.
  3. Install the auxiliary outlet heater hose if equipped.
    NOTE: Refer to FASTENER NOTICE .
  4. Install the NEW outlet heater hose nut (2) and bolt (3) to the engine.

    Tighten 

    Tighten the nut and bolt to 25 N.m (18 lb ft).

    Fig 1: Install Outlet Heater Hose, Bolt & Nut
    G01479071Courtesy of GENERAL MOTORS CORP.
  5. Connect the outlet heater hose to the heater core. Firmly push the quick connect onto the heater core pipe until you hear an audible click.
  6. Install the outlet heater hose to the mounting clip.
  7. Install the air intake tube.
  8. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
    Fig 2: Install Heater Hose From Heater Core Inlet Using J 43181
    G01479072Courtesy of GENERAL MOTORS CORP.
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