OEM 2003 Ford Thunderbird Heater Core

2003 Ford Thunderbird Heater Core Parts Questions & Experts Answers

• Q: How to service and repair the heater core and evaporator core housing on 2003 Ford Thunderbird?

  A: Begin the heater core and evaporator core housing repair process by recovering refrigerant from the system and draining part of the cooling system fluid. Follow the specified dismounting instructions to remove the instrument panel. Contact the given illustrations to understand the correct sequence for all component removal steps. First check for vapor leaks in the evaporator core through a vacuum test while performing a leakage test for suspected heater core leaks prior to removal. A technician must replace O-ring seals with new ones that received PAG oil lubrication before reattaching A/C fittings that were previously detached. The coolant hoses require lubrication using plain water according to necessity. The procedure for installing the thermostatic expansion valve follows the removal steps in reverse direction but requires proper lubrication of the refrigeration system with clean PAG oil together with engine coolant replenishment followed by refrigerant system evacuation and leak testing and charging. The replacement of a receiver drier requires new installation only when either a failed A/C compressor produces contaminant leakage or when the receiver drier suffers physical damage.