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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Thermostat Housing Removal

Thermostat Housing Removal

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the main engine electrical harness connector hold down bolts.
    2. Fig 1: View Of Main Engine Electrical Harness Connector Bolts
    GM1334916Courtesy of GENERAL MOTORS CORP.
  2. Remove the main engine electrical harness connectors.
  3. Disconnect and remove the barometric sensor.
    4. Fig 2: View Of Barometric Pressure Sensor Electrical Connector
    GM1334921Courtesy of GENERAL MOTORS CORP.
  4. Disconnect and remove the turbocharger vane position sensor.
    5. Fig 3: View Of Turbocharger Vane Position Sensor And Electrical Connector
    GM1334926Courtesy of GENERAL MOTORS CORP.
  5. Remove the main electrical harness bracket bolts.
  6. Remove the main electrical harness bracket.
    7. Fig 4: View Of Main Electrical Connector Harness Bracket & Bolts
    GM1334948Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the turbocharger coolant inlet hose.
    8. Fig 5: View Of Turbocharger Inlet Coolant Hose At Turbocharger Coolant Bypass
    GM1335386Courtesy of GENERAL MOTORS CORP.
  8. Remove the electrical harness bracket bolt.
  9. Remove the electrical harness bracket.
    10. Fig 6: View Of Electrical Harness Bracket Bolt
    GM1335388Courtesy of GENERAL MOTORS CORP.
  10. Remove the water outlet bolts.
    11. Fig 7: View Of Water Outlet Bolts
    GM1335391Courtesy of GENERAL MOTORS CORP.
  11. Remove the water outlet.
    12. Fig 8: View Of Water Outlet
    GM1335393Courtesy of GENERAL MOTORS CORP.
  12. Remove the oil fill tube bolts.
    13. Fig 9: View Of Oil Filler Tube Bolts
    GM1335397Courtesy of GENERAL MOTORS CORP.
  13. Remove the oil fill tube.
    14. Fig 10: View Of Oil Filler Tube
    GM1335401Courtesy of GENERAL MOTORS CORP.
  14. Disconnect the coolant temperature sensor.
    15. Fig 11: View Of Engine Coolant Temperature Sensor And Electrical Connector
    GM1335413Courtesy of GENERAL MOTORS CORP.
  15. Remove the EGR coolant pipe bolts.
  16. Remove the EGR coolant pipe.
    17. Fig 12: View Of Exhaust Gas Recirculation (EGR) Coolant Pipe, Hose & Bolts
    GM1335419Courtesy of GENERAL MOTORS CORP.
  17. Remove the water pump inlet pipe bolts.
    18. Fig 13: View Of Water Pump Inlet Pipe Bolts
    GM1335424Courtesy of GENERAL MOTORS CORP.
  18. Remove the turbocharger coolant outlet hose and clamps.
    19. Fig 14: View Of Turbocharger Coolant Outlet Hose & Clamps
    GM1335429Courtesy of GENERAL MOTORS CORP.
  19. Remove the water pump inlet pipe.
    20. Fig 15: View Of Water Pump Inlet Pipe
    GM1335432Courtesy of GENERAL MOTORS CORP.
  20. Remove the fuel pipe bracket bolt.
    21. Fig 16: View Of Fuel Pipe Bracket Bolt
    GM1335434Courtesy of GENERAL MOTORS CORP.
  21. Remove the thermostat housing bolts.
  22. Remove the thermostat housing.
    23. Fig 17: View Of Thermostat Housing
    GM1335441Courtesy of GENERAL MOTORS CORP.
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