Intermediate Refrigerant Lines

REMOVAL
The rear refrigerant lines for the optional rear A/C system is serviced in four sections. The liquid line for the optional rear A/C system uses a spring-lock refrigerant line coupler which requires the use of a 3/8 inch quick-disconnect tool (part of Special Tool, A/C Line Disconnect Kit 7193).

WARNING: REVIEW THE WARNINGS AND CAUTIONS IN THE FRONT OF THIS SECTION BEFORE PERFORMING THE FOLLOWING OPERATION.

1. Recover the refrigerant from the refrigerant system.
2. Disconnect and isolate the battery negative cable.
3. Disconnect the intermediate liquid line from the front liquid line using Special Tool, A/C Line Disconnect Kit 7193.
4. Remove the nut that secures the intermediate suction line fitting to the stud on the front suction line tapping plate.
5. Disconnect the intermediate suction line from the front suction line tapping plate.
6. Remove the seals from the liquid and suction line fittings and discard.
7. Install plug in, or tape over the open suction and liquid line fittings and the front suction line tapping plate inlet port.
8. Raise and support the vehicle.
9. Disconnect the fittings that secure the intermediate refrigerant lines to the rear refrigerant lines.
10. Remove the seals from the open liquid and suction line fittings and discard.
11. Install plugs in, or tape over the open liquid and suction line fittings.
12. Remove the bolts that secure the two intermediate refrigerant line retaining blocks to the vehicle underbody.
13. Remove the intermediate section of the rear refrigerant lines from the vehicle underbody.

INSTALLATION
1. Raise and support the vehicle.
2. Install the intermediate section of the rear refrigerant lines to the vehicle underbody.
3. Install the bolts that secure the two intermediate refrigerant line retaining blocks to the vehicle underbody. Tighten the bolts to 5 N.m (45 in. lbs.).
4. Remove plugs or tape from the open intermediate and rear refrigerant line fittings.
5. Lubricate new rubber O-ring seals with clean refrigerant oil and install the seals onto the intermediate-to-rear refrigerant line fittings.
6. Connect the fittings that secure the intermediate refrigerant lines to the rear refrigerant lines. Tighten the liquid line fitting to 16 N.m (142 in. lbs.). Tighten the suction line fitting to 30 N.m (22 ft. lbs.).
7. Lower the vehicle.
8. Connect the quick-disconnect front liquid line fitting to the intermediate liquid line.
9. Remove plugs or tape from the intermediate suction line fitting and the front suction line tapping plate inlet port.
10. Lubricate a new rubber O-ring seal with clean refrigerant oil and install the seal onto the intermediate suction line fitting.
11. Connect the intermediate suction line fitting to the front suction line tapping plate.
12. Install the nut that secures the intermediate suction line fitting to the stud on the front suction line tapping plate. Tighten the nut to 10 N.m (89 in. lbs.).
13. Reconnect the battery negative cable.
14. Evacuate the refrigerant system.
15. Charge the refrigerant system.