Dodge Intrepid Service Manual page 980

LH
REFRIGERANT OIL (Continued)
oil in the compressor is dispersed through the lines
and components. The evaporator, condenser, and
receiver/drier will retain a significant amount of oil.
Refer to the A/C Component Refrigerant Oil Capaci-
ties table. When a component is replaced, the speci-
fied amount of refrigerant oil must be added. When
the compressor is replaced, the amount of oil that is
retained in the rest of the system must be drained
from the replacement compressor. The oil capacity of
the system, minus the amount of oil still in the
remaining components (refer to the oil capacity chart
below) can be measured and poured into the suction
port of the compressor. When a line or component
has ruptured and oil has escaped, the receiver/drier
must be replaced along with the ruptured part.
Example: On an A/C system the evaporator retains
60 ml. (2 oz.). The condenser retains 30 ml. (1 oz.) of
oil, and system capacity may be 150 ml. (5.00 oz.) of
oil.
150 ml. minus 90 ml. equals 60 ml. (2.00 oz.).
A/C COMPONENT REFRIGERANT OIL
CAPACITIES
COMPONENT NAME
Total Air Conditioning System
Condenser
Evaporator
Receiver/Drier
Line Blown
Compressor
CAUTION: The refrigerant oil used in a R-134a A/C
system is unique. Use only oils which were
designed to work with R-134a refrigerant. The oil
designated for this vehicle is ND 8 PAG (polyalka-
lene glycol).
VERIFY REFRIGERANT ND8 LUBRICANT LEVEL
(1) Recover the refrigerant from the system. (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMB-
ING - STANDARD PROCEDURE - REFRIGERANT
RECOVERY)
(2) Disconnect the refrigerant lines from the a/c
compressor. Cap the open lines to prevent moisture
from entering the system.
(3) Remove the compressor from the vehicle.
ml. oz.
150 ml. 5.00 oz.
30 ml. 1.00 oz.
59 ml. 2.00 oz.
30 ml. 1.00 oz.
44 ml. 1.50 oz.
Drain and measure
the oil from the old
compressor. See
text.
(4) From the suction and discharge ports on top of
the compressor, drain the lubricant from the com-
pressor.
(5) Add the system capacity minus the capacity of
the components that have not been replaced. Refer to
the A/C Component Refrigerant Oil Capacities chart
above. Add lubricant through the suction and dis-
charge ports on compressor. This is not to exceed 150
ml. (5.00 oz.) in total.
(6) Install the compressor and connect the refriger-
ant lines. Then evacuate and charge refrigerant sys-
tem. (Refer to 24
CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM EVACUATE)
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - STANDARD PROCEDURE - REFRIG-
ERANT SYSTEM CHARGE)
(7) Most reclaim/recycling equipment will measure
the lubricant being removed. This amount of lubri-
cant should be added back to the system. If a new
compressor is being installed, drain lubricant from
old compressor, measure the amount drained and dis-
card old lubricant. Drain the lubricant from the new
compressor into a clean container. Return the
amount of lubricant measured from the old compres-
sor, plus the amount reclaimed from the system back
into the new compressor.
SERVICE PORT VALVE CORE
REMOVAL
The 3.2 / 3.5L service port valve cores are located
on the top of the manifold (High Side) and front side
of the manifold (Low Side) (Fig. 14). The 2.7L service
port valve ports are located on the A/C liquid line
(high side) and suction line (low side).
(1) Remove the valve caps. Recover the refrigerant.
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - STANDARD PROCEDURE - REFRIG-
ERANT RECOVERY)
(2) Using a standard valve core tool, remove the
valve core. Be careful to prevent any dirt/debris
from entering the valve core opening or getting
on the replacement valve core.
CAUTION: A valve that is not fully seated can lead
to damage to the valve during evacuation and
charge. This can result in system refrigerant dis-
charge while uncoupling the charge adapters.
PLUMBING 24 - 43
- HEATING & AIR