Discharge Line

5.7L ENGINE

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.

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 system Refrigerant Oil Level.

NOTE: Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is opened. 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 (8) onto the A/C discharge line (1) Installation .
2. Position the A/C discharge line into the engine compartment.
3. Remove the tape or plugs from the opened discharge line fitting and the condenser port.
4. Lubricate a new O-ring with clean refrigerant oil and install it and a new gasket onto the discharge line fitting. Use only the specified O-ring seal 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. Install the A/C discharge line onto the A/C condenser (3).
6. Install the nut (2) that secures the A/C discharge line to the A/C condenser. Tighten the nut to 23 Nm (17 ft. lbs.).
7. Remove the tape or plugs from the opened discharge line fitting and the compressor port.
8. Lubricate a new O-ring with clean refrigerant oil and install it and a new gasket onto the discharge line fitting. Use only the specified O-ring seal 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.
9. Install the A/C discharge line onto the A/C compressor (6).
10. Install the nut (7) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 23 Nm (17 ft. lbs.).
11. Connect the wire harness connector to the A/C pressure transducer.
12. Reconnect the negative battery cable.
13. Evacuate the refrigerant system Refrigerant System Evacuate .
14. Adjust the refrigerant oil level Refrigerant Oil Level .
15. Charge the refrigerant system Refrigerant System Charge .