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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 862 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (LMM) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the left wheelhouse inner panel. Refer to Front Wheelhouse Liner Replacement - Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .
  2. Remove the radiator outlet hose. Refer to Radiator Outlet Hose Replacement .
  3. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipe Replacement Diesel .
  4. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
    Fig 1: Identifying Water Pump Outlet Pipe Nuts & Studs
    GM1729415Courtesy of GENERAL MOTORS CORP.
  5. Remove the water pump to engine coolant pipe nuts (2) from the studs (1).
  6. Remove the engine wiring harness retainer from the inner stud.
    7. Fig 2: Water Pump Outlet Pipe Gasket, Water Pump, O-Ring, Nut And Bolts
    GM2338140Courtesy of GENERAL MOTORS CORP.
  7. Remove the water pump bolts. Note the location of the bolts. The bolts are three different lengths.
  8. Remove the water pump.
  9. Remove and discard the water pump O-ring and coolant pipe gasket.
  10. If required, clean and inspect the water pump. Refer to Water Pump Cleaning and Inspection .
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