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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Engine Cooling System) >> Repair Instructions >> Radiator Hose Replacement - Inlet (4.8L, 5.3L, and 6.0L Engines) >> Removal Procedure

Removal 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. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Loosen the air cleaner outlet duct clamps at the following locations:
    • Throttle body
    • Mass airflow/intake air temperature (MAF/IAT) sensor
  3. Remove the radiator inlet hose clip from the outlet hose.
  4. Remove the air cleaner outlet duct.
  5. If necessary, remove the engine sight shield. Refer to ENGINE SIGHT SHIELD REPLACEMENT (4.8L, 5.3L, and 6.0L Engines) or  ENGINE SIGHT SHIELD REPLACEMENT (6.0L ENGINE W/RPOS Y91 and Z88)  .
    Fig 1: Remove Air Cleaner Outlet Duct
    G02108992Courtesy of GENERAL MOTORS CORP.
  6. Remove the radiator vent inlet hose from the radiator inlet hose clips.
    Fig 2: Radiator Vent Inlet Hose & Hose Clips
    G02108993Courtesy of GENERAL MOTORS CORP.
  7. Reposition the inlet hose clamp at the radiator.
  8. Remove the inlet hose clip from the fan shroud.
  9. Remove the inlet hose from the radiator.
    Fig 3: Remove Inlet Hose
    G02108994Courtesy of GENERAL MOTORS CORP.
  10. Reposition the inlet hose clamp at the water pump.
  11. Remove the inlet hose from the water pump.
    Fig 4: Remove Inlet Hose
    G02108995Courtesy of GENERAL MOTORS CORP.
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