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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 (4.3L Engine) >> 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. Separate the MAF/IAT sensor assembly and the air inlet tube by loosening the hose clamp.
  3. Disconnect the PCV hose from the air cleaner outlet duct.
    Fig 1: Disconnect PCV Hose
    G02108982Courtesy of GENERAL MOTORS CORP.
  4. Remove the air inlet tube and resonator retaining wing nut.
    Fig 2: Remove Air Inlet Tube & Resonator Retaining Wing Nut
    G02108983Courtesy of GENERAL MOTORS CORP.
  5. Remove the air inlet tube and resonator from the throttle body by pivoting the air inlet tube and resonator upward until the hinge clip releases from the lip on the throttle body.
    Fig 3: Removing Air Inlet Tube & Resonator
    G02108984Courtesy of GENERAL MOTORS CORP.
  6. Remove the radiator inlet hose from the support.
  7. Remove the radiator inlet hose from the radiator.
    Fig 4: Remove Radiator Inlet Hose
    G02108985Courtesy of GENERAL MOTORS CORP.
  8. Remove the radiator inlet hose from the thermostat housing.
  9. Remove the radiator inlet hose.
    Fig 5: Remove Radiator Inlet Hose
    G02108986Courtesy of GENERAL MOTORS CORP.
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