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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1539 (Engine Cooling System - Non-Hybrid) >> Repair Instructions >> Water Pump Replacement (LMM) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis 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 (Non-HP2) 
  3. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipe Replacement .
  4. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  5. Fig 1: View Of Water Pump Outlet Pipe Nuts
    GM1729415Courtesy of GENERAL MOTORS CORP.
  6. Remove the water pump to engine coolant pipe nuts (2) from the studs (1)
  7. Remove the engine wiring harness retainer from the inner stud.
  8. Fig 2: View Of Engine Coolant Pipe & Gasket
    GM2338140Courtesy of GENERAL MOTORS CORP.
  9. Remove the water pump nut (1) and bolts (2). Note the location of the bolts. The bolts are three different lengths.
  10. Remove the water pum (5).
  11. Remove and discard the water pump O-ring (3) and coolant pipe gasket (4).
  12. If required, clean and inspect the water pump. Refer to Water Pump Cleaning and Inspection .