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Engine Block Heater - 4.7L: Removal

  1. Disconnect negative battery cable from battery.
  2. Drain coolant from radiator. (Refer to STANDARD PROCEDURE - DRAINING COOLING SYSTEM 4.7L ENGINE ).
  3. Raise vehicle.
  4. Remove engine cylinder block drain plug(s) located on the sides of cylinder block above the oil pan rail. (Fig 1).
    Fig 1: Removing Engine Drain Plug - 4.7L Engine
    G01391860Courtesy of DAIMLERCHRYSLER CORP.
  5. Remove power cord from block heater.
  6. Loosen screw at center of block heater. Remove heater assembly. (Fig 2).
    Fig 2: Removing/Installing Engine Block Heater - 4.7L
    G01391861Courtesy of DAIMLERCHRYSLER CORP.
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