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Home >> Hummer >> 2007 >> H3 Standard >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Repair Instructions >> Radiator Replacement >> Removal Procedure
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Removal Procedure

  1. Drain the coolant from the radiator. Refer to Cooling System Draining and Filling (Static Fill)  or Cooling System Draining and Filling (Vac-N-Fill) .
  2. Recover the refrigerant. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Remove the oil pan skid plate.
  5. Install the engine shield. Refer to Engine Shield Replacement .
    6. Fig 1: View Of Transmission Cooler Lines At Radiator
    GM1566575Courtesy of GENERAL MOTORS CORP.
  6. Remove the transmission cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection for the 4L60-E/4L65-E transmission, if equipped.
  7. Using J 38185  reposition the radiator outlet hose clamp from the radiator. See Special Tools .
    8. Fig 2: Identifying Radiator Outlet Hose
    GM1566574Courtesy of GENERAL MOTORS CORP.
  8. Remove the radiator outlet hose from the radiator.
  9. Lower the vehicle.
  10. Remove the cooling fan. Refer to Fan Replacement .
    11. Fig 3: Identifying Radiator Inlet Hose
    GM1566572Courtesy of GENERAL MOTORS CORP.
  11. Using J 38185  reposition the radiator inlet hose clamp. See Special Tools .
  12. Remove the radiator inlet hose from the radiator.
  13. Remove the radiator vent inlet hose from the radiator.
    14. Fig 4: View If Fan Shroud & Radiator
    GM1566566Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Push retainers back to release the fan shroud from the radiator.
  14. Remove the fan shroud from the radiator.
  15. Remove the discharge hose. Refer to DISCHARGE HOSE REPLACEMENT .
  16. Remove the evaporator tube. Refer to EVAPORATOR TUBE REPLACEMENT (LEFT HAND DRIVE) or EVAPORATOR TUBE REPLACEMENT (RIGHT HAND DRIVE) .
    17. Fig 5: Identifying Condenser-To-Radiator Retaining Bolts
    GM1566563Courtesy of GENERAL MOTORS CORP.
  17. Remove the condenser to radiator retaining bolts.
    18. Fig 6: Identifying Radiator Support Bracket Retaining Bolt
    GM1566576Courtesy of GENERAL MOTORS CORP.
  18. Remove the radiator support bracket retaining bolt.
  19. Remove the radiator support bracket.
    20. Fig 7: View Of Condenser & Radiator
    GM1566564Courtesy of GENERAL MOTORS CORP.
  20. Reposition the condenser from the radiator.
  21. Remove the radiator from the vehicle.
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