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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1772 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Hose Replacement - Inlet (L81) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Drain the coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
  3. Remove the battery box/UHFB assembly. Refer to Battery Cooling Box procedure in the Electrical Service Manual.
    4. Fig 1: Front Heater Outlet Hose & Rear Heater Outlet Hose
    GM933856Courtesy of GENERAL MOTORS CORP.
  4. Separate the front heater outlet hose from the rear heater outlet hose by moving the clamp at the splice forward then separating the hoses.
    5. Fig 2: Heater Outlet, Hose Clamp & Heater Core
    GM931798Courtesy of GENERAL MOTORS CORP.
  5. If removing the rear heater outlet hose, remove the clamp and hose from the heater core outlet pipe.
    6. Fig 3: Removing Clamp & Hose From Engine Port
    GM933846Courtesy of GENERAL MOTORS CORP.
  6. If removing the front heater outlet hose, remove the clamp and hose from the engine port.
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