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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1008 (Heating, Ventilation And Air Conditioning - Gas) >> Repair Instructions >> Heater Hose Replacement - Outlet (LU3) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the heater hose.
  2. Install the outlet heater hose to the engine.
    Fig 1: Installing Outlet Heater Hose To The Engine (LU3)
    GM363243Courtesy of GENERAL MOTORS CORP.
  3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the outlet heater hose mounting bolt.

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

  5. Connect the heater hose to the heater core.
    Fig 2: Outlet Heater Hose (LU3)
    GM363246Courtesy of GENERAL MOTORS CORP.

    Firmly push the quick connect onto the heater core pipe until you hear an audible click.

  6. Install the air intake tube.
  7. Fill the cooling system. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) in Engine Cooling.