Suction Line-Front Section

REMOVAL

WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION. FAILURE TO FOLLOW THE WARNINGS AND CAUTIONS COULD RESULT IN POSSIBLE PERSONAL INJURY OR DEATH.

NOTE: The underbody refrigerant lines for the optional rear A/C system are serviced in five sections. Two sections are connected the A/C compressor. Two sections of the underbody suction line (low-side) are connected together by a tapping block with an O-ring seal. The underbody A/C discharge line uses a spring-lock type refrigerant line coupler with an O-ring seal.

1. Remove the cover from the rear A/C evaporator housing.
2. Recover the refrigerant from the rear refrigerant system.
3. Raise and support the vehicle.

Underbody Suction Line - Front Section:

4. Disconnect the connection of the front section of the underbody suction line from the compressor section of the underbody suction line and remove and discard the O-ring seal.
5. Remove the bolt that secures the connection of the front section of the underbody suction line to the rear section of the underbody suction line.
6. Disconnect the front section of the underbody suction line from the rear section and remove and discard the O-ring seal.
7. Install plug in, or tape over all of the opened suction line fittings.
8. Remove the screws and brackets that secure the front section of the underbody suction line to the underneath of the vehicle and remove the front section of the suction line.
9. If necessary, remove the bolt that secures the compressor section of the underbody suction line to the A/C compressor and remove and discard the O-ring seal Make sure to plug in, or tape over the opened underbody suction line fitting and compressor port.

INSTALLATION
1. If the compressor section of the underbody suction line was removed from the A/C compressor, remove plugs or tape from the suction line fitting, lubricate a new rubber O-ring seal with clean refrigerant oil, install it onto the suction line fitting and install the bolt that secures the suction line to the compressor. Tighten the bolt to 21 N.m (15 ft. lbs.).
2. Position the front section of the underbody suction line to the vehicle.
3. Install the brackets and screws that secure the front section of the underbody suction line to the underneath of the vehicle. Tighten the screws to 8 N.m (70 in. lbs.).
4. Remove the plugs or tape from the suction line fittings.
5. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the suction line fittings.
6. Connect the front section of the underbody suction line to the compressor section of the suction line. Tighten the nut to 35 N.m (26 ft. lbs.).
7. Connect the front section of the underbody suction line to the rear section of the suction line and install the retaining bolt. Tighten the bolt to 25 N.m (18 ft. lbs.).
8. Lower the vehicle.
9. Evacuate the rear refrigerant system.
10. Charge the rear refrigerant system.
11. Install the cover onto the rear A/C evaporator housing.