Jeep 5191347AC Core-Heater

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Removing interior trim requires the use of special upholstery removal tools used to pry apart fastening clips without damaging them. Be sure to use these tools when removing interior components. Have the system discharged and the refrigerant recovered by an air conditioning technician. Disconnect the negative battery cable from the remote ground terminal or battery. Drain the cooling system. On the driver's side of the firewall, remove the uppermost nut that holds the heat shield. Remove the two nuts holding the heat shield to studs on the dash panel. The heat shield can then be rotated and tilted to aid in removal. Remove the bolt securing the refrigerant lines to the air conditioning evaporator. Disconnect the lines and remove the seals. Place towels underneath the heater core tube fittings. Remove the clamps and disconnect the heater hoses from the heater core. Remove the bolts holding the heating/air conditioning housing to the instrument panel. Remove the front sill trim on both the passenger's and driver's sides. Remove the front seats. If equipped, loosen fasteners and remove the passenger side amplifier. Remove the B pillar trim panels and cowl trim panel on the driver's side. Remove the center console. Pull back the carpet to expose the rear seat ducts. Remove the instrument panel. On 2015 and later models, the heater core/HVAC housing is removed as an assembly with the instrument panel. Once removed, the heater core can be separated from the panel by simply disengaging the wiring harness and removing the four mounting fasteners. Disconnect the shift interlock cable connected to the floor duct and move aside. Remove the screws holding the left front floor duct to the heating/air conditioning housing and remove the duct. Remove the air conditioner condensation tube. Remove the fasteners holding the left and right rear distribution ducts. Disconnect the ducts from the heating and air conditioning housing. Remove the nut holding the heater/air conditioner housing to the passenger's side dash panel. Pull the heater/air conditioning unit rearward. Remove the heating/air conditioning housing through the passenger compartment. Place the heater/air conditioning housing on a work bench. Remove the foam seal from the connection tube flange holding the heater core outlets. Un-clip the fasteners securing the flange and remove the flange from the heating/air conditioning housing. Remove the fasteners securing the retaining brackets. Remove the heater core line retaining brackets. Carefully remove the heater core from the heater/air conditioning housing. Installation is the reverse of removal.

Special upholstery removal tools are needed to pry apart fastening clips without damaging them.