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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 Outlet Tube 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.
    Fig 1: View Of Wiring Harness Bracket & Bolts
    GM1874338Courtesy of GENERAL MOTORS CORP.
  1. Remove the radiator inlet hose. Refer to Radiator Inlet Hose Replacement (Diesel) .
  2. Remove the turbocharger coolant bypass valve. Refer to Turbocharger Coolant Bypass Valve Replacement .
  3. Remove the bolts and wiring harness bracket at the thermostat housing.
  4. Position the bracket and wiring harness aside.
    5. Fig 2: View Of Main Engine Electrical Harness Connector Latches & Clips
    GM1873022Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the main engine electrical harness connectors. Lift up on the latches (1) in order to disconnect the connectors.
  6. Open the harness clip (2).
  7. Remove the main engine electrical harness connectors.
    8. Fig 3: View Of Turbocharger Vane Position Sensor Electrical Connector
    GM1873036Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the turbocharger vane position sensor electrical connector (1).
    9. Fig 4: View Of Main Engine Electrical Harness Connectors & Latches
    GM1873197Courtesy of GENERAL MOTORS CORP.
  9. Unclip the main engine electrical harness connectors from the main electrical connector harness bracket.
    10. Fig 5: View Of Main Electrical Connector Harness Bracket & Bolts
    GM1874451Courtesy of GENERAL MOTORS CORP.
  10. Remove the main electrical connector harness bracket bolts (1).
  11. Remove the main electrical connector harness bracket (2) and position aside.
    12. Fig 6: View Of Manifold Intake Temperature Sensor Electrical Connector & Water Tube
    GM1874486Courtesy of GENERAL MOTORS CORP.
  12. Remove the manifold intake temperature sensor electrical connector from the water tube bracket.
    13. Fig 7: Locating Water Outlet Bolts
    GM1874750Courtesy of GENERAL MOTORS CORP.
  13. Remove the water outlet bolts.
    14. Fig 8: View Of Water Outlet
    GM1874818Courtesy of GENERAL MOTORS CORP.
  14. Remove the water outlet.
  15. Remove and discard the O-ring seal.
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