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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1136 (Engine Cooling System) >> Repair Instructions >> Radiator Replacement (LY7 Standard Cooling) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the radiator.
  2. Connect the upper retainer pins of the side air baffle to the radiator.
  3. Connect the radiator outlet hose to the radiator. Use J 38185  to position the radiator outlet hose clamp to secure the hose. See Special Tools .
  4. Fig 1: View Of Radiator Inlet Hose
    GM1334988Courtesy of GENERAL MOTORS CORP.
  5. Connect the radiator inlet hose to the radiator. Use J 38185  to position the radiator inlet hose clamp to secure the hose. See Special Tools .
  6. Fig 2: Identifying Surge Tank Inlet Hose
    GM1334989Courtesy of GENERAL MOTORS CORP.
  7. Connect the surge tank inlet hose to the radiator. Use J 38185  to position the hose clamp to secure the hose. See Special Tools .
  8. Install the radiator/condenser upper support.
  9. Install the radiator support brackets.
  10. NOTE: Refer to Fastener Notice .
  11. Install the radiator support bracket bolts.

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  12. Raise and support the vehicle.
  13. Fig 3: View Of Radiator Support Brackets
    GM1334986Courtesy of GENERAL MOTORS CORP.
  14. Connect the lower retainer pins of the side air baffle to the radiator.
  15. Fig 4: View Of Transmission Oil Cooler (TOC) Mounting Bolts
    GM1350217Courtesy of GENERAL MOTORS CORP.
  16. Install the transmission oil cooler mounting bolts.

    Tighten:  Tighten the bolts to 5 N.m (44 lb in).

  17. Fig 5: Locating Upper Condenser Mounting Bolts
    GM1349583Courtesy of GENERAL MOTORS CORP.
  18. Install the upper condenser mounting bolts.

    Tighten:  Tighten the bolts to 5.4 N.m (48 lb in).

  19. Fig 6: View Of Condenser Lower Bracket Bolts
    GM1349581Courtesy of GENERAL MOTORS CORP.
  20. Install the lower condenser mounting bolts.

    Tighten:  Tighten the bolts to 5.4 N.m (48 lb in).

  21. Lower the vehicle.
  22. Install the electric cooling fan assembly. Refer to Engine Cooling Fan Replacement .
  23. Fill the cooling system. Refer to Cooling System Draining and Filling (GE 47716)  or Cooling System Draining and Filling (Static Fill) .