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Refrigerant

Maintenance › Fluids
Unified entry — merged from multiple cross-listed pages in the original manual.
Procedures
Capacity Specificationsreference
Fig. 1
Fig. 1
REFRIGERANT CHARGE CAPACITY
Fluid Type Specificationsreference
REFRIGERANT Type R-134a
Refrigerant System - Charge9 steps
⚠ WARNING
Refer to the applicable warnings and cautions for this system before performing the following operation
ℹ NOTE
The Underhood HVAC Specification Label contains the refrigerant fill specification of the vehicle being serviced.
△ CAUTION
A small amount of refrigerant oil is removed from the A/C system each time the refrigerant system is recovered and evacuated. Before charging the A/C system, you MUST replenish any oil lost during the recovery process. See the equipment manufacturer instructions for more information.
⚠ WARNING
Take care not to open the discharge (high pressure) valve at this time. Failure to follow these instructions may result in possible serious or fatal injury.
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Fig. 1
  1. Evacuate the refrigerant system Refrigerant System Evacuate.
  2. Connect an R-134a refrigerant recovery/recycling/charging station that meets SAE standard J2788 to the refrigerant system.
  3. Measure the proper amount of refrigerant charge and heat it to 52° C (125° F) with the charging station [1][2]Capacity Specifications. See the operating instructions supplied by the equipment manufacturer for proper use of this equipment.
  4. Open both the suction and discharge valves, then open the charge valve to allow the heated refrigerant to flow into the system.
  5. When the transfer of refrigerant has stopped, close both the suction and discharge valves.
  6. If all of the refrigerant charge did not transfer from the dispensing device, open all of the windows in the vehicle and set the heating-A/C system controls so that the A/C compressor is engaged and the blower motor is operating at its lowest speed setting. Run the engine at a steady high idle (about 1400 rpm). If the A/C compressor does not engage, test the compressor clutch circuits and repair as required.
  7. Open the low-side valve to allow the remaining refrigerant to transfer to the refrigerant system.
  8. Disconnect the charging station from the refrigerant system service ports.
  9. Reinstall the caps onto the refrigerant system service ports.
Refrigerant System - Recoveryreference
⚠ WARNING
Refer to the applicable warnings and cautions for this system before performing the following operation
△ CAUTION
Various aftermarket manufacturers produce A/C system sealants that are designed to stop A/C refrigerant system leaks. The use of A/C system sealants may result in damage to A/C refrigerant recovery/evacuation/recharging equipment and/or the vehicle A/C system and are not recommended for use by Chrysler LLC.
ℹ NOTE
A/C system should be tested prior to refrigerant recovery if the use of A/C system sealants are suspected. These sealants have the potential to clog refrigerant recovery equipment and cause vehicle A/C component damage. Various tool manufacturers make tool kits that detect A/C system sealants. See the operating instructions supplied by the equipment manufacturer for proper care and use of this equipment.
Fig. 1
Fig. 1
REFRIGERANT SYSTEM RECOVERY Warning and Caution . Failure to follow the warnings and cautions may result in serious or fatal injury. When servicing the A/C system, an R-134a refrigerant recovery/recycling/charging station (1) that meets SAE standard J2788 must be used. Per SAE standard J2788, refrigerant recovery stations must recover 95% of the refrigerant system within 30 minutes at 21.1° C (70° F) and be able to measure the amount of refrigerant removed from the system to an accuracy of 28 grams (1 oz.). See the operating instructions supplied by the equipment manufacturer for proper care and use of this equipment. If sealants are detected in an A/C system, the system should be treated as contaminated and replacement of the entire A/C refrigerant system is recommended. A/C systems found to be contaminated with A/C system sealers, A/C stop-leak products or seal conditioners void the warranty for the A/C system.
Refrigerant System - Evacuate5 steps
ℹ NOTE
Special effort must be used to prevent moisture from entering the A/C system oil. Moisture in the oil is very difficult to remove and will cause a reliability problem with the A/C compressor.
ℹ NOTE
When connecting the service equipment coupling to the line fitting, verify that the valve of the coupling is fully closed. This will reduce the amount of effort required to make the connection.
  1. Recover the refrigerant system Refrigerant System Recovery.
  2. Connect a suitable charging station, refrigerant recovery machine or a manifold gauge set with vacuum pump and refrigerant recovery equipment Refrigerant System Recovery.
  3. Open the suction and discharge valves and start the vacuum pump. The vacuum pump should run a minimum of 45 minutes prior to charge to eliminate all moisture in system. When the suction gauge reads to the lowest degree of vacuum possible (approximately -88 kPa (- 26 in. Hg) or greater) for 30 minutes, close all valves and turn off vacuum pump. If the system fails to reach specified vacuum, the refrigerant system likely has a leak that must be corrected. If the refrigerant system maintains specified vacuum for at least 30 minutes, start the vacuum pump, open the suction and discharge valves. Then allow the system to evacuate an additional 10 minutes.
  4. Close all valves. Turn off and disconnect the vacuum pump.
  5. Charge the refrigerant system Refrigerant System Charge.
Refrigerant: Description and Operationreference
△ CAUTION
R-134a refrigerant is not compatible with R-12 refrigerant in an A/C system. Even a small amount of R-12 refrigerant added to an R-134a refrigerant system will cause A/C compressor failure.
A/C REFRIGERANT The refrigerant used in this air conditioning system is a HydroFluoroCarbon (HFC), type R-134a. Unlike R-12, which is a ChloroFluoroCarbon (CFC), R-134a refrigerant does not contain ozone-depleting chlorine. R-134a refrigerant is a nontoxic, nonflammable, clear and colorless liquefied gas. The A/C refrigerant system is filled-for-life at the factory and requires no regular maintenance. Although not required at specific intervals, the charge level should be checked if system performance deteriorates or if a noise or leak is suspected Component Tests and General Diagnostics.
Factory service manual
From the 2008 KK factory manual — descriptions, specs, torque & procedures for this part.
A/C REFRIGERANT
The refrigerant used in this air conditioning system is a HydroFluoroCarbon (HFC), type R-134a. Unlike R-12, which is a ChloroFluoroCarbon (CFC), R-134a refrigerant does not contain ozone-depleting chlorine. R-134a refrigerant is a non-toxic, non-flammable, clear and colorless liquefied gas.
CAUTION: R-134a refrigerant is not compatible with R-12 refrigerant in an A/C system. Even a small amount of R-12 refrigerant added to an R-134a refrigerant system will cause A/C compressor failure.
The A/C refrigerant system is filled-for-life at the factory and requires no regular maintenance. Although not required at specific intervals, the charge level should be checked if system performance deteriorates or if a noise or leak is suspected. Refer to DIAGNOSIS AND TESTING .
A/C REFRIGERANT SYSTEM
All Models 1.12 Pounds 0.510 Kilograms