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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1448 (HVAC Systems - General Servicing) >> Repair Instructions >> Heater Hose Replacement - Inlet (Auxiliary System) >> Installation Procedure

Installation Procedure

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    Fig 1: Identifying Hoses
    GM735781Courtesy of GENERAL MOTORS CORP.
  1. Apply coolant to the end of the heater inlet hoses.
    2. IMPORTANT: When installing a new heater inlet hose, place the clamps on the hose before installing the hose to the inlet hose fitting at the engine block.
  2. Install the heater inlet hose to the inlet hose fitting at the engine block.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the nut retaining the coolant bypass valve to the cowl.

    Tighten:  Tighten the nut to 10 N.m (89 lb in).

  4. Install the inlet heater hose to the engine block.
  5. Reposition the inlet heater hose clamp at the engine block using J 38185  .
  6. Install the quick connect end of the inlet heater core hose to the heater core.
  7. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  8. Fill the engine cooling system. Refer to Draining and Filling Cooling System (LL8) or Draining and Filling Cooling System (LM4) in Engine Cooling.
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