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Home >> Chevrolet >> 2005 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2005 GMC Safari and 2005 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Expanded View Of Coolant Pump Components
    GM48325Courtesy of GENERAL MOTORS CORP.
  1. Install the coolant pump gaskets.
  2. Install the coolant pump.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the four bolts retaining the coolant pump.

    Tighten:  Tighten the bolts to 45 N.m (33 lb ft).

    4. Fig 2: Identifying Radiator Inlet Hose
    GM71614Courtesy of GENERAL MOTORS CORP.
  4. Connect the coolant bypass hose and clamps.
  5. Connect the radiator outlet hose to the coolant pump. Refer to Radiator Hose Replacement - Outlet .
    6. Fig 3: View Of Coolant Pump Pulley Bolts & Pulley
    GM48324Courtesy of GENERAL MOTORS CORP.
  6. Install the coolant pump pulley and the bolts.

    Tighten:  Tighten the coolant pump pulley bolts to 25 N.m (18 lb ft).

  7. Install the fan and fan blade clutch assembly. Refer to Fan Replacement .
  8. Install the drive belt. Refer to Drive Belt Replacement .
  9. Install the upper fan shroud and the bolts. Refer to Fan Shroud Replacement - Upper .
  10. Install the Mass Air Flow (MAF) sensor. Refer to Mass Air Flow (MAF) Sensor Replacement .
  11. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  12. Refill the radiator with coolant. Refer to Draining and Filling Cooling System .
  13. Start engine. After engine reaches normal operating temperature, check for coolant leaks.
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