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A/C Compressor: Installation

NOTE:

When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be removed from the new A/C compressor. Refer to STANDARD PROCEDURE - REFRIGERANT 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 may result in a refrigerant system leak.

GC0177530Courtesy of CHRYSLER GROUP, LLC
  1. If the A/C compressor is being replaced, the refrigerant oil in the old compressor must be first drained and measured. Then the oil in the new A/C compressor must be drained. Finally, the new compressor must be refilled with the same amount of new refrigerant oil that was drained out of the old compressor. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to STANDARD PROCEDURE - REFRIGERANT OIL LEVEL . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  2. Position the A/C compressor to the engine.
  3. If removed, install the two studs. Tighten the studs securely.
  4. Install and tighten the two bolts (3) and two nuts (4) in the following sequence:
    • Install the bolt and hand tighten.
    • Install nuts and hand tighten.
    • Tighten upper nut to 28 N.m (21 ft. lbs.).
    • Tighten lower nut to 28 N.m (21 ft. lbs.).
    • Tighten bolt to 28 N.m (21 ft. lbs.).
  5. Connect the A/C compressor wire harness connectors (1, 3).
    GC0178373Courtesy of CHRYSLER GROUP, LLC
  6. Remove the tape or plugs from the opened refrigerant line fittings and the compressor ports.
  7. Lubricate NEW  rubber O-ring seals with clean refrigerant oil and install them and NEW  gaskets on the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-1234yf system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  8. Install the A/C suction and liquid line (1, 4) to the A/C compressor.
  9. Install the A/C suction and liquid lines to compressor nuts (2, 3). Tighten the nuts to the proper. Refer to TECHNICAL SPECIFICATIONS .
  10. Install the accessory drive belt. Refer to BELT, SERPENTINE, REMOVAL AND INSTALLATION .
  11. Install the right front splash shield. Refer to SHIELD, SPLASH, FRONT WHEELHOUSE, REMOVAL AND INSTALLATION .
  12. Remove the support and lower the vehicle.
  13. Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
  14. Charge the refrigerant system. Refer to PLUMBING, FRONT, STANDARD PROCEDURE .
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