Durango 2WD V6-3.7L (2009)
Refrigerant: Service and Repair
Refrigerant System - Charge
REFRIGERANT SYSTEM CHARGE
WARNING: Review safety precautions and warnings before performing this procedure See: Heating and Air Conditioning/Service
Precautions/Warning and See: Heating and Air Conditioning/Service Precautions/Caution . Failure to follow these instructions may
result in serious or fatal injury.
NOTE: A/C system refrigerant capacity can be found on the HVAC Specification Label, located in the engine compartment.
After all refrigerant system leaks have been repaired and the refrigerant system has been evacuated, a refrigerant charge can be injected into the system
See: Heating and Air Conditioning/Service and Repair/Refrigerant System Charge.
Use an R-134a refrigerant recovery/recycling/charging station that meets SAE standard J2788 when charging the A/C system. Per SAE standard J2788,
refrigerant recovery stations must charge the system to an accuracy of 14 grams (0.5 oz.). See the operating instructions supplied by the equipment
manufacturer for proper care and use of this equipment.
CHARGING PROCEDURE
CAUTION: Polyalkylene Glycol (PAG) oil can contaminate the refrigerant system of a Hybrid Electric Vehicle (HEV) and lead to A/C system
damage and failure. If the refrigerant recovery/recycling and charging equipment was last used on a non-HEV model, flush the
hoses of the equipment with a solvent approved by the equipment manufacturer before using the equipment on an HEV model, or
use refrigerant recovery/recycling and charging equipment designated only for HEV models by your service facility. See the
operating instructions supplied by the equipment manufacturer for proper use and care of the refrigerant recovery/recycling and
charging equipment.
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.
NOTE: The Underhood HVAC Specification Label contains the refrigerant fill capacity of the vehicle being serviced.
1. Evacuate the refrigerant system See: Heating and Air Conditioning/Service and Repair/Refrigerant System Evacuate.
2. Connect a manifold gauge set or an R-134a refrigerant recovery/recycling/charging station that meets SAE standard J2788 to the refrigerant
system.
3. Measure the proper amount of refrigerant and heat it to 52° C (125° F) with the charging station See: Heating and Air
Conditioning/Specifications/Capacity Specifications/Refrigerant Charge Capacity. 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 operating 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 operate, test the compressor control circuits and repair as required.
7. Open the low-side valve to allow the remaining refrigerant to transfer to the refrigerant system.
WARNING: Take care not to open the discharge (high pressure) valve at this time. Failure to follow this warning could result in possible
serious or fatal injury.
8. Disconnect the charging station and manifold gauge set from the refrigerant system service ports.
