Ranger 4WD V6-3.0L VIN U (1997)
Climate Control System
DURING COMPONENT REPLACEMENT
Refrigerant Oil Capacity 267 ml (9 oz.)
Refrigerant Oil Replacement Capacities:
Evaporator Core = 118 ml (4 oz.)
A/C condenser core = 40 ml (1.5 oz.)
Suction accumulator/drier = 80 ml (3 oz.)
Any 1 Refrigerant Line = 30 ml (1 oz.)
A/C compressor:
1. If the amount of oil drained from the removed A/C compressor is between 118 and 148 ml (4 and 5 oz.), pour the same amount of new
refrigerant oil into the new A/C compressor.
2. If the amount drained is greater than 148 ml (5 oz.), pour 148 ml (5 oz.) of new refrigerant oil into the new A/C compressor.
3. If the amount drained is less than 118 ml (4 oz.), pour 118 ml (4 oz.) of new refrigerant oil into the new A/C compressor.
When it is necessary to replace a component of the refrigerant system, the correct procedures must be followed to make sure the total oil charge on
the system is correct after the new component is installed. During normal A/C operation, some refrigerant oil is circulated through the system with
the refrigerant and some is retained in the compressor. If certain components of the system are removed for replacement, some of the refrigerant
oil will go with the component. To maintain the original total oil charge, it is necessary to compensate for the oil lost by adding oil to the system
with the replacement part.
Other Refrigerant System Components
Replacement of other refrigerant system components such as hoses, O-rings, and pressure switches does not require the addition of refrigerant oil.
