Auxiliary Air Conditioning Evaporator Tube Replacement

Auxiliary Air Conditioning Evaporator Tube Replacement

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
3. Remove the right rear inner wheelhouse liner if necessary. Refer to Rear Wheelhouse Panel Liner Replacement ([1][2]Rear Wheelhouse Panel Liner Replacement).




4. Remove auxiliary evaporator tube nut (1) and pull downward to release the auxiliary A/C evaporator tubes (2) from the auxiliary HVAC module (4).
5. Remove auxiliary evaporator tube clip nuts (3) and release tubes from clips.
6. Remove air cleaner duct. Air Cleaner Outlet Duct Replacement (Service and Repair).




7. Remove the retaining nuts (1) and the auxiliary A/C evaporator tubes (2) from the TXV tube and condenser tube.




8. Remove the heater/A/C tubes retaining nuts (1) from the retaining studs and clips along the frame in four places.
9. Remove the auxiliary A/C evaporator tubes (3) from the clamps (2).
10. Remove the auxiliary A/C evaporator tubes from the vehicle.

Installation Procedure

Note: The replacement A/C and heater pipes are shipped in two sections and spliced together upon installation. Refer to Auxiliary Heater and Air Conditioning Pipe Replacement/Repair (Auxiliary Heater and Air Conditioning Pipe Replacement/Repair).

1. Install the auxiliary A/C evaporator tubes to the vehicle.




2. Install the auxiliary A/C evaporator tubes (3) to the clamps (2).

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the heater/A/C tubes retaining nut (1) to the retaining studs and clips (2) along the frame in four places.

Tighten the nut to 7 Nm (62 lb in).




4. Install the auxiliary A/C evaporator tubes (2) to the TXV tube and condenser tube and install the retaining nuts (1).

Tighten the nut to 16 Nm (12 lb ft).

5. Install air cleaner duct. Air Cleaner Outlet Duct Replacement (Service and Repair).




6. Install the auxiliary A/C evaporator tubes (2) to the HVAC module (4) and install retaining nut (1).

Tighten the nuts to 16 Nm (12 lb ft).

7. Install auxiliary evaporator tubes to retaining clips and install nuts (3) to secure.

Tighten the nuts to 4 Nm (35 lb in).

8. Install the right rear inner wheelhouse liner if necessary. Refer to Rear Wheelhouse Panel Liner Replacement ([1][2]Rear Wheelhouse Panel Liner Replacement).
9. Lower the vehicle.
10. Recharge the refrigerant to the system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
11. Leak test the fittings of the component using the J 39400-A.