Diesel Data: Automotive Repair

Thermostatic Expansion Valve Manifold and Tube Assembly




Thermostatic Expansion Valve Manifold and Tube Assembly













Removal and Installation

All vehicles

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Recover the refrigerant. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.

3. Detach the brake booster vacuum hose retainer from the strut tower brace.





4. NOTE: RH side of strut tower brace shown, LH similar.

Remove the 4 nuts and the strut tower brace.

- To install, tighten to 30 Nm (22 lb-ft).





3.5L vehicles

5. Remove the Evaporative Emission (EVAP) canister purge valve. For additional information, refer to Evaporative Emissions Evaporative Emission Canister Purge Valve.

6. Detach the wire harness retainer clip from the valve cover stud.





3.5L Gasoline Turbocharged Direct Injection (GTDI) vehicles

7. Remove the cowl panel grille. For additional information, refer to Front End Body Panels Service and Repair.

8. Disconnect the 2 PCM electrical connectors.





9. Detach the wiring harness retainer and disconnect the electrical connector.





10. Remove the engine wiring harness retainer from the bulkhead.

1. Push the wiring harness retainer tab in.

2. Slide the wiring harness up and out of the bulkhead.





All vehicles

11. Detach the routing clip pin-type retainer from the Thermostatic Expansion Valve (TXV) manifold and tube bracket.

12. Remove the evaporator outlet line fitting nut and disconnect the fitting.
- Discard the O-ring seal and gasket seal.

- To install, tighten to 15 Nm (133 lb-in).

13. Detach the evaporator inlet line clip at the coolant bottle.

14. Remove the receiver/drier outlet fitting nut and disconnect the fitting.
- Discard the O-ring seal and gasket seal.

- To install, tighten to 15 Nm (133 lb-in).

15. Remove the TXV manifold and tube bracket bolt.
- To install, tighten to 15 Nm (133 lb-in).

16. Completely loosen the TXV manifold and tube clamp bracket bolt.
- To install, tighten to 9 Nm (80 lb-in).

17. Remove the TXV fitting nut and disconnect the fitting.
- Discard the O-ring seals.

- To install, tighten to 15 Nm (133 lb-in).

18. Remove the TXV manifold and tube assembly.

19. To install, reverse the removal procedure.
- Install new gasket seals and O-ring seals.

- Add the correct amount of clean PAG oil to the refrigerant system. For additional information, refer to the Refrigerant Oil Adding procedure in Climate Control System - General Information and Diagnostics Refrigerant Oil Adding.

20. Evacuate, leak test and charge the refrigerant system. For additional information, refer to Climate Control System - General Information and Diagnostics Air Conditioning (A/C) System Recovery, Evacuation and Charging.