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Installation Procedure

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    Fig 1: Locating Coolant Heater
    GM1702201Courtesy of GENERAL MOTORS COMPANY
  1. If reusing the old coolant heater, apply thread sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent to the threads.
  2. CAUTION:

    Refer to Fastener Caution .

  3. Install the coolant heater to the engine block and tighten to 50 N.m (37 lb ft).
  4. Fig 2: View Of Coolant Heater Cord
    GM1699547Courtesy of GENERAL MOTORS COMPANY
  5. Connect the coolant heater cord electrical connector.
  6. Fig 3: Locating Oil Cooler Hose Bracket & Adapter Bolts
    GM1702199Courtesy of GENERAL MOTORS COMPANY
  7. For vehicles with RPO L76 (6.0L) perform the following steps otherwise proceed to step 9.
  8. Position the oil cooler hose adapter end, if equipped.
  9. Install a NEW oil cooler hose adapter gasket, if equipped.
  10. If equipped, install the oil cooler hose adapter bolts (2) And tighten to 12 N.m (106 lb in).
  11. If equipped, install the oil cooler hose bracket bolt (1) and tighten to 25 N.m (18 lb ft).
  12. Fig 4: View Of Oil Pan Skid Plate & Bolts
    GM1698082Courtesy of GENERAL MOTORS COMPANY
  13. If equipped, position and install the oil pan skid plate and bolts and tighten to 20 N.m (15 lb ft)
  14. Lower the vehicle.
  15. Fill the cooling system/engine block. Refer to Cooling System Draining and Filling (Static Fill) .