Air Conditioning Evaporator Thermal Expansion Valve Tube Replacement
Air Conditioning Evaporator Thermal Expansion Valve Tube Replacement (LFX)
Removal Procedure
1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging (Belt Driven Compressor) Refrigerant Recovery and Recharging (Belt Driven Compressor)
2. Remove the rear intake manifold cover. Refer to Intake Manifold Cover Replacement - Rear Intake Manifold Cover Replacement - Rear
3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair
Note:
Cap or tape off the open A/C components immediately to prevent system contamination.
4. Disconnect the compressor hose from the A/C evaporator thermal expansion valve tube and reposition. Refer to Air Conditioning Compressor Hose Replacement (LFX) Air Conditioning Compressor Hose ReplacementAir Conditioning Compressor Hose Replacement (LS3, L99) Air Conditioning Compressor Hose ReplacementAir Conditioning Compressor Hose Replacement (LSA) Air Conditioning Compressor Hose Replacement
5. Remove A/C evaporator thermal expansion valve tube nut (1).
6. Remove A/C evaporator thermal expansion valve tube (2) from HVAC module.
7. Remove A/C evaporator thermal expansion valve tube nut (1).
8. Remove A/C evaporator thermal expansion valve tube (2) from condenser.
9. Remove A/C evaporator thermal expansion valve tube clips (1).
10. Remove A/C evaporator thermal expansion valve tube (2) from body.
11. Remove A/C evaporator thermal expansion valve tube from vehicle and discard sealing washers.
Installation Procedure
1. Install new sealing washers to A/C evaporator thermal expansion valve tube. Refer to Air Conditioning Compressor Hose Seal Replacement Air Conditioning Compressor Hose Seal Replacement
2. Install A/C evaporator thermal expansion valve tube clips (1) to body.
3. Install A/C evaporator thermal expansion valve tube (2) to condenser.
Caution:
Refer to Fastener Caution Fastener Caution
4. Install A/C evaporator thermal expansion valve tube nut (1) and tighten to 22 Nm (16 lb ft).
5. Install A/C evaporator thermal expansion valve tube (2) to thermal expansion valve tube.
6. Install A/C evaporator thermal expansion valve tube nut (1) and tighten to 22 Nm (16 lb ft).
7. Connect the compressor hose to the A/C evaporator thermal expansion valve tube. Refer to Air Conditioning Compressor Hose Replacement (LFX) Air Conditioning Compressor Hose ReplacementAir Conditioning Compressor Hose Replacement (LS3, L99) Air Conditioning Compressor Hose ReplacementAir Conditioning Compressor Hose Replacement (LSA) Air Conditioning Compressor Hose Replacement
8. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement Service and Repair
9. Install the rear intake manifold cover. Refer to Intake Manifold Cover Replacement - Rear Intake Manifold Cover Replacement - Rear
10. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging (Belt Driven Compressor) Refrigerant Recovery and Recharging (Belt Driven Compressor)