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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 348 (Heating & Air Conditioning (Service Information) - 2500 Hd & 3500 Hd) >> Plumbing >> Line, A/C Suction >> Installation >> 3.6L, 5.7L Engines

3.6L, 5.7L Engines

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. 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. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .

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. Remove the plugs or tape from the opened suction line fittings and the expansion valve and compressor ports.
  2. Lubricate new O-ring seals with clean refrigerant oil and install them and new gaskets onto the suction line fittings. Use only the specified O-ring 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.
  3. Position the A/C suction line into the engine compartment.
  4. Install the plastic retaining brackets that secure the A/C suction line to the A/C discharge line and to the upper front of the engine.
    Fig 1: Accessory Drive Belt
    GC0089585Courtesy of CHRYSLER GROUP, LLC
  5. Connect the A/C suction line (1) to the A/C compressor (4).
  6. Install the nut (2) that secures the A/C suction line to the A/C compressor. Tighten the nut to 23 N.m (17 ft. lbs.).
    Fig 2: Remove/Install A/C Discharge Line
    GC0154597Courtesy of CHRYSLER GROUP, LLC
  7. Connect the and the A/C suction line (2) to the Internal Heat Exchanger Assembly.
  8. Install the nut (1) that secures the A/C suction line to the Internal Heat Exchanger. Tighten the nut to 23 N.m (17 ft. lbs.).
  9. Install the air filter housing cover and engine air inlet tube. Refer to BODY, AIR CLEANER, INSTALLATION, 5.7L GASBODY, AIR CLEANER, INSTALLATION, 5.7L CNGBODY, AIR CLEANER, INSTALLATION, 6.7L DIESEL .
  10. Connect the negative battery cable.
  11. Evacuate the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
  12. Adjust the refrigerant oil level. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
  13. Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
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