Ford Mustang (1999-2004) Service Manual: Heater Core

Removal

NOTE: If a heater core leak is suspected, the heater core must be pressure leak tested before it is removed from the vehicle. For additional information, refer to Section.

1. Remove the evaporator core housing. For additional information, refer to Evaporator Core Housing in this section.

2. Remove the foam weather seal.

Heater Core

3. Remove the screws and remove the heater core cover.

Heater Core

4. Remove the heater core.

Installation

1. NOTE: Be sure to install a new oval foam weather seal around the heater core inlet and outlet tubes.

To install, reverse the removal procedure.

    Evaporator Core Housing
    Material Item Specification PAG Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) WSH-M1C231- B MERPOL NA ESE-M99B144- B Removal NOTE: The evapor ...

    Evaporator Core Housing
    Disassembly 1. Remove the evaporator core housing. For additional information, refer to Evaporator Core Housing in this section. 2. Remove the foam weather seal. 3. Remove the screws and remove th ...

    Other materials:

    Transmission Control Switch
    Removal 1. Remove the shifter top control panel. 2. Disconnect the electrical connectors. 3. Remove the shifter bezel. 4. Remove the bulb from the bezel. 5. Disconnect the TCS connector. 6. CAUTION: Extra force may be needed to lift up on the handl ...

    Wheel Studs
    Removal 1. Remove the wheel hub (1104). For additional information, refer to Wheel Hub and Bearing in this section. 2. Using a press, remove the wheel stud (1107) from the wheel hub. Installation 1. Using a press, install a new wheel stud. 2. Install the w ...

    Removal
    1. Remove the nuts and position the radio ignition interference capacitors aside. 2. Remove the valve covers. For additional information, refer to Valve Cover RH and Valve Cover LH in this section. 3. Remove the cooling fan. 4. Remove the accessory drive ...