A/C Discharge Line - Installation

INSTALLATION

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system Refrigerant Oil Level . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

CAUTION: If replacing the A/C discharge line, be sure to use the discharge line designed for the A/C compressor in the vehicle. If replacing the 6SEU16 compressor, be sure to use the latest level of A/C discharge line during replacement. Failure to use the correct A/C discharge line could result in possible discharge line and/or compressor damage.

NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant systemRefrigerant Oil Level .

NOTE: Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.





1. If removed, install the A/C pressure transducer (2) onto the A/C discharge line (3). Tighten the A/C pressure transducer securely.
2. Position the A/C discharge line into the engine compartment.
3. Remove the tape or plugs from the discharge line fitting and the condenser port.
4. Lubricate a new rubber O-ring seal with clean refrigerant oil and install it and a new gasket onto the discharge line fitting. Use only the specified O-ring as it is made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
5. Reach down through the opening between the radiator and the front fascia and connect the A/C discharge line to the A/C condenser (4).
6. Install the nut (5) that secures the A/C discharge line to the A/C condenser. Tighten the nut to 5 Nm (44 in. lbs.).

7. Connect the wire harness connector (1) to the A/C pressure transducer.
8. Install the upper radiator closure panel Upper Closure Panel - Installation.






NOTE: 5SE12 A/C compressor shown. 6SEU16 compressor similar.

9. Raise and support the vehicle.
10. Remove the tape or plugs from the discharge line fitting and the compressor port.
11. Lubricate a new rubber O-ring seal with clean refrigerant oil and install it and a new gasket onto the discharge line fitting. Use only the specified O-ring as it is made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
12. Connect the A/C discharge line (2) to the A/C compressor (3).
13. Install the nut (1) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 20 Nm (15 ft. lbs.).
14. Install the splash shield onto the right side frame rail Splash Shield - Installation.
15. Lower the vehicle.
16. Reconnect the negative battery cable.

CAUTION: Do NOT run the engine with a vacuum pump in operation or with a vacuum present within the A/C system. Failure to follow this caution will result in serious A/C compressor damage.

17. Evacuate the refrigerant system Refrigerant System Evacuate.
18. Adjust the refrigerant oil level Refrigerant Oil Level.
19. Charge the refrigerant system Refrigerant System Charge.