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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1003 (Engine Cooling System) >> Repair Instructions >> Radiator Hose Replacement - Inlet (4.8, 5.3, and 6.0L Engines) >> Removal Procedure

Removal 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. Drain the cooling system. Refer to Draining and Filling Cooling System (with HP2)  or Draining and Filling Cooling System (without HP2) .
  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. Fig 1: View Of Air Cleaner Outlet Duct (W/HP2 Front)
    GM307286Courtesy of GENERAL MOTORS CORP.
  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) in Engine Mechanical - 4.8L, 5.3L, and 6.0L.
  6. Remove the radiator vent inlet hose from the radiator inlet hose clips.
    7. Fig 2: View Of Vent Inlet Hose At Throttle Body
    GM659465Courtesy 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.
    10. Fig 3: View Of Inlet Hose & Radiator (4.8, 5.3, & 6.0L)
    GM659416Courtesy of GENERAL MOTORS CORP.
  10. Reposition the inlet hose clamp at the water pump.
  11. Remove the inlet hose from the water pump.
    12. Fig 4: View Of Inlet Hose & Water Pump
    GM659418Courtesy of GENERAL MOTORS CORP.
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