LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 821 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (4.8L, 5.3L, and 6.0L Engines) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. 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 duct.
  4. Remove the air cleaner outlet duct.
    Fig 1: Installing Coolant Air Bleed Hose To Throttle Body
    G02117784Courtesy 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 (RPO LQ4) or ENGINE SIGHT SHIELD REPLACEMENT (6.0L (RPO LQ9) in Engine Mechanical - 4.8L, 5.3L, and 6.0L.
  6. Remove the radiator vent inlet hose from the radiator hose clips.
    Fig 2: Removing Engine Sight Shield
    G02117785Courtesy of GENERAL MOTORS CORP.
  7. Position the inlet hose clamp at the water pump.
  8. Remove the inlet hose from the water pump.
  9. Remove the fan blade. Refer to FAN REPLACEMENT 
  10. Remove the accessory drive belt. Refer to DRIVE BELT REPLACEMENT -- ACCESSORY in Engine Mechanical -4.8L, 5.3L, and 6.0L.
    Fig 3: Removing Inlet Hose From Water Pump
    G02117786Courtesy of GENERAL MOTORS CORP.
  11. Position the outlet hose clamp at the water pump.
  12. Remove the outlet hose from the water pump.
    Fig 4: Removing Outlet Hose From Water Pump
    G02117787Courtesy of GENERAL MOTORS CORP.
  13. Position the surge tank outlet hose clamp at the water pump.
  14. Remove the surge tank outlet hose from the water pump.
    Fig 5: Removing Surge Tank Outlet Hose From Water Pump
    G02117788Courtesy of GENERAL MOTORS CORP.
  15. Position the heater inlet hose clamp at the water pump.
  16. Remove the heater inlet hose from the water pump.
    Fig 6: Removing Heater Inlet Hose From Water Pump
    G02117789Courtesy of GENERAL MOTORS CORP.
  17. Remove the water pump bolts.
  18. Remove the water pump and gaskets.
  19. Discard the water pump gaskets
    Fig 7: Removing Water Pump And Gaskets
    G02117790Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals