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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 862 (Engine Cooling System) >> Repair Instructions >> Engine Coolant Thermostat Replacement (LU3) >> Installation Procedure

Installation 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.
    Fig 1: View Of Thermostat
    GM42903Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW O-ring seal to the thermostat.
  2. Install the thermostat.
    3. Fig 2: View Of Water Outlet
    GM42895Courtesy of GENERAL MOTORS CORP.
  3. Install the water outlet.
  4. Install the water outlet tube. Refer to Water Outlet Tube Replacement (LU3) .
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