Honda HR-V: Evaporator Core Removal and Installation

Removal & Installation

NOTE: Be careful not to damage the evaporator core.

1. HVAC Unit - Remove

2. Heater Unit - Remove

3. Air Mix Control Motor - Remove (With Climate Control)

4. Mode Control Motor - Remove (With Climate Control)

5. Evaporator Core - Remove

1. Remove the heater unit case (A)
2. Remove the heater unit case D.

3. Remover the evaporator core (A) and the plate (B).

6. Evaporator Temperature Sensor - Remove

7. All Removed Parts - Install

1. Install the parts in the reverse order of removal.

   NOTE: Make sure that there is no air leakage.

EVAPORATOR EXPANSION VALVE REMOVAL AND INSTALLATION

Removal & Installation

1. A/C Refrigerant - Recover

2. A/C Lines - Disconnect

3. Expansion Valve - Remove

1. Remove the expansion valve (A).

   NOTE:

   • Screw the A/C pipe fixing both in the expansion valve about 4 to 6 heads. Hold the bolts and pull them out.
   • Be careful not to damage the expansion valve.

4. All Removed Parts - Install

1. Install the parts in the reverse order of removal, and note these items:
   • New O-rings should be used at each fitting. Prior to installation, apply a thin coat of the same refrigerant oil used in the A/C compressor. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
   • Charge the system with the specified amount of R-134a refrigerant.

EVAPORATOR TEMPERATURE SENSOR REMOVAL, INSTALLATION, AND TEST

Removal & Installation

1. Evaporator Core - Remove

2. Evaporator Temperature Sensor - Remove

1. Remove the evaporator temperature sensor (A)
2. Remove the clip (B).

3. All Removed Parts - Install

1. Install the evaporator temperature sensor (A) in the evaporator core, and note these items: Refer to the following position list.

Dual A/C type

Except dual A/C type

Test

1. Evaporator Temperature Sensor - Test

1. Dip the sensor in ice water, and measure the resistance between terminals No. 1 and No. 2
2. Then pour warm water on the sensor, and check for a change in resistance
3. Compare the resistance readings with the specifications shown in the graph; the resistance should be within the specifications
4. If the resistance is not as specified, replace the evaporator temperature sensor.

READ NEXT: