Chrysler 2004 Concorde Service Manual page 1187

LH
42LE AUTOMATIC TRANSAXLE (Continued)
TEST FIVE-SELECTOR IN OVERDRIVE (Fourth
Gear, CC on)
NOTE: These tests check the torque converter
clutch hydraulic circuit.
(1) Attach gauge to the torque converter clutch off
pressure tap.
(2) Move selector lever to the overdrive position.
(3) Allow vehicle wheels to turn and increase
throttle opening to achieve an indicated vehicle speed
of 50 mph. Vehicle should be in 4th gear, CC on.
CAUTION: Both wheels must turn at the same speed.
(4) Torque converter clutch off pressure should be
less than 5 psi.
(5) Now attach the gauge to the torque converter
clutch on pressure tap.
(6) Move selector to the overdrive position.
(7) Allow vehicle wheels to turn and increase
throttle opening to achieve an indicated vehicle speed
of 50 mph.
(8) Verify the torque converter clutch is applied
mode using the RPM display of the DRB scan tool.
(9) Torque converter clutch on pressure should be
60-90 psi.
ALL PRESSURE SPECIFICATIONS ARE PSI (ON HOIST, WITH FRONT WHEELS FREE TO TURN)
Gear
Actual Gear
Selector
Position
PARK * PARK
0 mph
REVERSE * REVERSE
0 mph
NEUTRAL * NEUTRAL
0 mph
L # FIRST
20 mph
3 # SECOND
30 mph
3 # DIRECT
45 mph
OD # OVERDRIVE
30 mph
OD # OVERDRIVE
50 mph WITH TCC
* Engine Speed at 1500 rpm
# CAUTION: Both front wheels must be turning at same speed.
TEST SIX-SELECTOR IN REVERSE
NOTE: This test checks the reverse clutch hydraulic
circuit.
clutch tap.
tionary (foot on brake) and throttle opened to achieve
1500 rpm.
read 165 to 235 psi.
TEST RESULT INDICATIONS
the pump and pressure regulator are working properly.
tive pump, a clogged filter, or a stuck pressure regu-
lator valve.
do not fall within the specified pressure range.
psi in Step 6 of Test Three, a worn reaction shaft seal
ring or a defective solenoid assembly is indicated.
5 psi in Step 4 of Test Two-A, a defective solenoid/pres-
sure switch assembly or controller is the cause.
Under- Over- Reverse
drive drive
Clutch Clutch
0-2 0-5 0-2
0-2 0-7 165-235
0-2 0-5 0-2
110-145 0-5 0-2
110-145 0-5 0-2
75-95 75-95 0-2
0-2 75-95 0-2
0-2 75-95 0-2
(1) Attach gauge to the reverse and low/reverse
(2) Move selector lever to the reverse position.
(3) Read reverse clutch pressure with output sta-
(4) Reverse and low/reverse clutch pressure should
(1) If proper line pressure is found in any one test,
(2) Low pressure in all positions indicates a defec-
(3) Clutch circuit leaks are indicated if pressures
(4) If the overdrive clutch pressure is greater than 5
(5) If the underdrive clutch pressure is greater than
PRESSURE TAPS
Torque Torque
Converter Converter
Clutch
Clutch Clutch
Off
60-110 45-100
50-100 35-85
60-110 45-100
60-110 45-100
60-110 45-100
60-90 45-80
60-90 45-80
0-5 60-95
TRANSAXLE 21 - 7
2/4 Low/
Reverse
Clutch
Clutch
On
0-2 115-145
0-2 165-235
0-2 115-145
0-2 115-145
115-145 0-2
0-2 0-2
75-95 0-2
75-95 0-2