Suction 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. Position the A/C suction line (5) into the engine compartment.
2. Remove the tape or plugs from the opened suction line fitting and the compressor port.
3. Lubricate a new O-ring seal with clean refrigerant oil and install it and a new gasket onto the suction 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.
4. Install the A/C suction line onto the A/C compressor (6).
5. Install the nut (4) that secures the A/C suction line to the A/C compressor. Tighten the nut to 23 Nm (17 ft. lbs.).




6. Remove the tape or plugs from the opened suction line fitting and the accumulator tube.
7. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the accumulator tube fitting. Use only the specified seals as they are 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.
8. Connect the A/C suction line (6) to the spring-lock coupler (1) on the accumulator (5) and install the secondary retaining clip (7) Installation .
9. Install the air filter housing cover.
10. Reconnect the negative battery cable.
11. Evacuate the refrigerant system Refrigerant System Evacuate .
12. Adjust the refrigerant oil level Refrigerant Oil Level .
13. Charge the refrigerant system Refrigerant System Charge .