Diesel Data: Automotive Repair

Air Conditioning Evaporator Thermal Expansion Valve Hose Replacement




Air Conditioning Evaporator Thermal Expansion Valve Hose Replacement

Special Tools

J 39400-A - Halogen Leak Detector

Removal Procedures

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.




2. Remove the air conditioning compressor hose nut (1) from the air conditioning evaporator thermal expansion valve tube hose.

3. Remove the air conditioning compressor hose from the air conditioning evaporator thermal expansion valve tube hose.

4. Remove the compressor hose retainer nut (2) from the battery box.




5. Remove the air conditioning evaporator thermal expansion valve tube hose nut (1) from the thermal expansion valve.

6. Remove the air conditioning evaporator thermal expansion valve tube hose (2) from the vehicle.

7. Remove and discard the sealing washers from the air conditioning evaporator thermal expansion valve tube hose. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.

Installation Procedure




1. Install new seal washers to the air conditioning evaporator thermal expansion valve tube hose. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.

2. Position the air conditioning evaporator thermal expansion valve tube hose in the vehicle.

3. Install the air conditioning evaporator thermal expansion valve tube hose (2) to the thermal expansion valve.

4. Install the air conditioning evaporator thermal expansion valve tube hose nut (1) to the thermal expansion valve and tighten the nut to 22 Nm (16 lb ft).




5. Install a new sealing washer to the air conditioning evaporator thermal expansion valve tube hose at the ccompressor hose. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.

6. Install the air conditioning evaporator thermal expansion valve tube hose (2) to the compressor hose.

7. Install the air conditioning evaporator thermal expansion valve tube hose nut (1) to the compressor hose and tighten to 22 Nm (16 lb ft).

8. install the compressor hose retainer nut (2) to the battery box and tighten to 22 Nm (16 lb ft).

9. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.

10. Test the affected A/C joints for leaks using J 39400-A - halogen leak detector.