4.7L Engine

Disconnect negative battery cable from battery.
Drain coolant from radiator. See Cooling - Standard Procedure .
Raise vehicle.

Fig 1: Engine Block Heater - 4.7L
Courtesy of CHRYSLER LLC

1 - ENGINE BLOCK HEATER
Remove power cord from block heater (1).
Loosen screw at center of block heater. Remove heater assembly (1) .