Liquid Line Replacement

Liquid Line Replacement

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
2. Remove injector sight shield.
3. Remove right engine mount strut. Refer to Engine Mount Strut Replacement - Right Side (Service and Repair)
4. Remove underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement (Underhood Electrical Center or Junction Block Replacement)
5. Remove underhood electrical center bracket.
6. Reposition wiring harness as required.
7. Remove front bumper upper facia support. Refer to Front Bumper Fascia Upper Support Replacement (Enclave) (Front Bumper Fascia Upper Support Replacement)Front Bumper Fascia Upper Support Replacement (Outlook, Acadia) (Front Bumper Fascia Upper Support Replacement)




8. Remove the liquid line bolt from the A/C condenser (1).
9. Disconnect the liquid line from the A/C condenser (2).




10. Remove the liquid line to auxiliary tube nut (1).




11. Remove TXV tube retainer nut (1).
12. Disconnect the liquid line (2) and evaporator hose/tube from the TXV at plenum panel.




13. Remove the attaching liquid line clamp nuts along right inner frame rail and plenum panel (1).
14. Remove the liquid line bracket bolt at right side of upper tie bar support (2).
15. Remove the liquid line.
16. Remove and discard the discharge line sealing washer.

Installation Procedure




1. Install new sealing washers to the liquid line. Refer to Sealing Washer Replacement (Sealing Washer Replacement).
2. Connect the liquid line (2) and evaporator hose/tube to the TXV at plenum panel.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the liquid line to TXV nut (1).

Tighten the bolt to 9 Nm (80 lb in).




4. Connect the liquid line to the auxiliary evaporator tube.
5. Install the liquid line nut (1).

Tighten the bolt to 9 Nm (80 lb in).




6. Install the liquid line to the condenser (2).
7. Install the liquid line nut (1).

Tighten the bolt to 9 Nm (80 lb in).




8. Install liquid line bracket bolt to upper tie bar support (2).

Tighten the bolt to 9 Nm (80 lb in).

9. Install the liquid line bracket nuts along frame rail and plenum panel (1).

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

10. Install underhood electrical center bracket.
11. Install underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement (Underhood Electrical Center or Junction Block Replacement)
12. Install front bumper upper facia support. Refer to Front Bumper Fascia Upper Support Replacement (Enclave) (Front Bumper Fascia Upper Support Replacement)Front Bumper Fascia Upper Support Replacement (Outlook, Acadia) (Front Bumper Fascia Upper Support Replacement)
13. Install right engine mount strut. Refer to Engine Mount Strut Replacement - Right Side (Service and Repair)
14. Install injector sight shield.
15. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging (Refrigerant Recovery and Recharging).
16. Leak test the fittings of the component using J 39400-A .