Thermocouple Probe - Chrysler 1997 Stratus Convertible RHD Service Manual

L I Q U I D L I N E T E M P E R A T U R E 200° DEG. F ANYTHING IN THIS SHADED
JX
180°
SERVICE PROCEDURES (Continued)
160
140°
120°
100°
80°
60°
40°
EMPTY REFRIGERANT SYSTEM LEAK TEST
(1) Evacuate the refrigerant system to the lowest
degree of vacuum possible (approx. 28 in Hg.). Deter-
mine if the system holds a vacuum for 15 minutes. If
vacuum is held, a leak is probably not present. If sys-
tem will not maintain vacuum level, proceed with
this procedure.
(2) Prepare a .284 Kg. (10 oz.) refrigerant charge
to be injected into the system.
(3) Connect and dispense .284 Kg. (10 oz.) of
refrigerant into the evacuated refrigerant system.
(4) Proceed to Step 2 of Low Refrigerant Level
Leak Test.
LOW REFRIGERANT LEVEL LEAK TEST
(1) Determine if there is any (R-134a) refrigerant
in the system.
(2) Position the vehicle in a wind free work area.
This will aid in detecting small leaks.
(3) Bring the refrigerant system up to operating
temperature and pressure. This is done by allowing
the engine to run for five minutes with the system
set to the following:
• Transaxle in Park
• Engine Idling at 700 rpm
• A/C Controls Set in 100 percent outside air
• Blower switch in the high A/C position
UNDERCHARGED AREA 50 P.S.I. 100 P.S.I. 150 P.S.I. 200 P.S.I. 250 P.S.I. 300 P.S.I. 350 P.S.I. 400 P.S.I. 450 P.S.I. 500 P.S.I.
Fig. 8 Charge Determination Graph
COMPRESSOR DISCHARGE PRESSURE ANYTHING IN THIS SHADED
PROPER
CHARGE
RANGE
HEATING AND AIR CONDITIONING
• A/C in the ON position
• Open all windows
CAUTION: A leak detector designed for R-12 refrig-
erant (only) will not detect leaks in a R-134a refrig-
erant system.
(4) Shut off the vehicle and wait 2 to 7 minutes.
Then use an Electronic Leak Detector that is
designed to detect R-134a type refrigerant and search
for leaks. Fittings, lines, or components that appear
to be oily usually indicates a refrigerant leak. To
inspect the evaporator core for leaks, insert the leak
detector probe into the drain tube opening or a heat
duct. A R-134a dye is available to aid in leak detec-
tion, use only Chrysler approved refrigerant dye.
If a thorough leak check has been completed with-
out indication of a leak, proceed to System Charge
Level.

THERMOCOUPLE PROBE

To diagnose the A/C system, a temperature probe is
required to measure liquid line temperature. The
clamp-on type K probe shown in this manual is avail-
able through the Chrysler Professional Service
Equipment (PSE) program. This probe is compatible
with temperature-measuring instruments that accept
OVERCHARGED AREA
24 - 11