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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 >> Water Pump Replacement - Auxiliary >> 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. Reposition the front heater inlet hose clamp (4) from the auxiliary water pump (1).
  3. Remove the front heater inlet hose (6) from the auxiliary water pump (1).
  4. Reposition the rear heater inlet hose clamp (2) from the auxiliary water pump (1).
  5. Remove the rear heater inlet hose (3) from the auxiliary water pump (1).
    6. Fig 1: View Of Auxiliary Water Pump, Front & Rear Heater Inlet Hoses & Clamps
    GM1206678Courtesy of GENERAL MOTORS CORP.
  6. Remove the heater outlet hose from the clip.
  7. Disconnect the electrical connector (1) from the auxiliary water pump (2).
    8. Fig 2: View Of Electrical Connector & Auxiliary Water Pump
    GM1285618Courtesy of GENERAL MOTORS CORP.
  8. Remove the nuts (4) from the auxiliary water pump bracket (1).
  9. Remove the auxiliary water pump (1) from the vehicle.
    10. Fig 3: View Of Auxiliary Water Pump, Bracket & Nuts
    GM1285626Courtesy of GENERAL MOTORS CORP.
  10. Remove the clips (2) from the auxiliary water pump bracket (1).
  11. Remove the auxiliary water pump (3) from the auxiliary water pump bracket (1).
    12. Fig 4: View Of Auxiliary Water Pump & Bracket Removed
    GM1285746Courtesy of GENERAL MOTORS CORP.
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