| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
Remove the heater and blower assembly.
(Refer to Heater -"Heater Unit") |
| 3. |
Remove the heater unit lower case (A) after loosening the mounting screws. 
|
| 4. |
Pull out the evaporator core (A) from the heater unit. 
|
Be careful that the inlet and outlet pipe are not bent during evaporator core removal/installation. |
|
| 5. |
Install in the reverse order of removal.
| A. |
If you're installing a new evaporator core, add refrigerant oil (PAG OIL). |
| B. |
Replace the O-rings with new ones at each fitting, and apply a
thin coat of refrigerant oil before installing them. Be sure to use the
right O-rings for R-134a to avoid leakage. |
| C. |
Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption. |
| D. |
Do not spill the refrigerant oil on the vehicle; it may
damage the paint; if the refrigerant oil contacts the paint, wash it off
immediately. |
| E. |
Apply sealant to the grommets. |
| F. |
Make sure that there is no air leakage. |
| G. |
Charge the system and test its performance. |
| H. |
Do not interchange the inlet and outlet heater hoses and install the hose clamps securely. |
| I. |
Refill the cooling system with engine coolant. |
|
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the heater and blower assembly.
(Refer to Heater -"Heater Unit")
3.
Remove the heater core cover (A) after loosening ...
Description
The temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows.
The signal from the control unit adjusts the position of the ...
Hyundai Equus: Evaporator Core Repair procedures
Second generation VI (2009–2026) / Hyundai Equus VI 2009-2026 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Evaporator Core Repair procedures
Heater Core Repair procedures
Temperature Control Actuator Description and Operation