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Home >> Cadillac >> 2013 >> Escalade Hybrid, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Replacement (With LC9, L76,or L92) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Oil Pan Skid Plate & Bolts
    GM1698082Courtesy of GENERAL MOTORS COMPANY
  1. Drain the cooling system/engine block. Refer to Cooling System Draining and Filling (Static Fill) .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the oil pan skid plate bolts and plate, if equipped.
    4. Fig 2: Locating Oil Cooler Hose Bracket & Adapter Bolts
    GM1702199Courtesy of GENERAL MOTORS COMPANY
  4. For vehicles with regular production option (RPO) L76 (6.0L), perform the following steps. Otherwise, proceed to step 9.
  5. Remove the oil cooler hose bracket bolt (1), if equipped.
  6. Remove the oil cooler hose adapter bolts (2), if equipped.
  7. Remove and discard the oil cooler hose adapter gasket, if equipped.
  8. Position the oil cooler hose adapter end out of the way, if equipped.
    9. Fig 3: View Of Coolant Heater Cord
    GM1699547Courtesy of GENERAL MOTORS COMPANY
  9. Disconnect the coolant heater cord electrical connector.
    10. Fig 4: Locating Coolant Heater
    GM1702201Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not score the surface of the engine block hole when removing the coolant heater.

  10. Remove the coolant heater from the engine block.
  11. Remove any burrs, sealer, or other rough spots.
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