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Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 429 (Engine Cooling System) >> Repair Instructions >> Radiator Replacement (LLT) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the radiator.
  2. Connect the upper air baffle retaining pins to the radiator.
  3. Fig 1: Identifying Radiator Support Bolts and Brackets
    GM2147044Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  4. Install the radiator support brackets (2).
  5. Install the radiator support bracket bolts (1) and tighten to 9 N.m (80 lb in).
  6. Fig 2: Identifying Hose Clamp and Auxiliary Water Pump Outlet Hose
    GM2147287Courtesy of GENERAL MOTORS CORP.
  7. Connect the auxiliary water pump outlet hose to the radiator (2). Use J 38185:  Hose Clamp Pliers to position the auxiliary water pump outlet hose clamp (1) to secure the hose.
  8. Fig 3: Identifying Hose Clamp Pliers and Surge Tank Inlet Hose
    GM2147049Courtesy of GENERAL MOTORS CORP.
  9. Connect the surge tank inlet hose (2) to the radiator. Use J 38185:  Hose Clamp Pliers to position the surge tank inlet hose clamp (1) to secure the hose.
  10. Fig 4: Identifying Hose Clamp and Radiator Inlet Hose
    GM2147172Courtesy of GENERAL MOTORS CORP.
  11. Connect the radiator inlet hose (2) to the radiator. Use J 38185:  Hose Clamp Pliers to position the radiator inlet hose clamp (1) to secure the hose.
  12. Fig 5: Identifying Hose Clamp and Radiator Outlet Hose
    GM2147246Courtesy of GENERAL MOTORS CORP.
  13. Connect the radiator outlet hose (2) to the radiator. Use J 38185:  Hose Clamp Pliers to position the radiator outlet hose clamp (1) to secure the hose.
  14. Raise and support the vehicle.
  15. Fig 6: Identifying Lower Condenser Mounting Bolts
    GM2147033Courtesy of GENERAL MOTORS CORP.
  16. Install the TOC mounting bolts (1) and tighten to 5 N.m (44 lb in).
  17. Connect the lower retaining pins of the side air baffle to the radiator.
  18. Fig 7: Identifying Lower Condenser Mounting Bolts
    GM2147030Courtesy of GENERAL MOTORS CORP.
  19. Install the lower condenser mounting bolts (1) and tighten to 5.4 N.m (48 lb in).
  20. Fig 8: Identifying Upper Condenser Mounting Bolts
    GM2147029Courtesy of GENERAL MOTORS CORP.
  21. Install the upper condenser mounting bolts (1) and tighten to 5.4 N.m (48 lb in).
  22. Install the electric cooling fan. Refer to Engine Coolant Fan Replacement (LH2 Heavy Duty Cooling)  or Engine Coolant Fan Replacement (LH2 Standard Cooling) .
  23. Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716)  or Cooling System Draining and Filling (Static Fill) .