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.
3. Remove the screws and remove the heater core cover.
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 Support Crossmember
Removal and Installation
1. Raise and support the vehicle. For additional information, refer to
Section.
2. Support the transmission with a suitable transmission jack.
3. Remove the crossmember.
1. Disconnect the HO2S sensors and position them aside.
2. ...
Hydraulic Lash Adjusters
Removal
1. Remove the roller followers. For additional information, refer to Roller
Followers in this section.
2. Remove the 16 hydraulic lash adjusters.
3. Inspect the roller followers. For additional information, refer to
Section.
Installation
1. To ins ...
Cleaning the exterior
Wash your vehicle regularly with cool or lukewarm water and a neutral
pH shampoo, such as Motorcraft® Detail Wash.
• Do not use a commercial or high-pressure wand on the surface or
edge of stripes and graphics. This can cause damage to the film and
cause th ...