Chrysler Conquest 1988 Service Manual page 1179

AUTOMATIC TRANSMISSION
- Troubleshooting
21-57
JATl9i
JATI 9E
Line Pressure at Idle
Range Line pressure kPa (psi)
R 304 - 441 (44 - 64)
D 275 - 373 (40 - 54)
2 785 - 1,128 (114 - 164)
1 275 - 373 (40 - 54)
Line Pressure at Stall Point
Range Line pressure kPa (psi)
R 1,961 - 2,354 (284 - 341)
D 1,667 - 1,883 (242 - 273)
2 1,667 - 1,785 (242 - 259)
1 1,667 - 1,883 (249 - 273)
Key points of pressure testing are:
1. Pressure at idle: Lock for a steady rise in pressure as car
speed increases under light load.
2. Pressure drop between shift points should not exceed 98
kPa (14 psi). Excessive pressure drop may indicate an
internal leak at servo or clutch seal.
STALL TEST
The stall test is an effective method of testing clutch and band
holding ability, torque converter one-way clutch operation, and
engine performance. A stall test should only be performed as a
last resort because of the high fluid temperature it generates
and the excessive load it places on the engine and transmis-
sion.
Caution
1. During test, never hold throttle wide-open for more
than 5 seconds.
2. Do not test more than two gear ranges without driving
car to cool off engine and transmission.
STALL TEST PROCEDURE
1. Transmission and engine fluid levels should always be
checked and fluid added as needed.
2. Run engine at 1,200 rpm to attain proper warm-up.
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during
test.
5. Start engine and place selector lever in "D" range.
6. Apply foot brake and accelerate to wide-open throttle. Do
not hold throttle open longer than five seconds.
7. Quickly note the engine stall speed and immediately
release throttle.
Standard value: 2,750 - 3,050 rpm
8. Shift selector lever to 'IN".
9. Run engine at 1,200 rpm for at least one minute, allowing it
to cool off.
10. Perform stall tests in the same manner as in steps 5
through 9 with select lever in "Z", "L" and "R", respective-
IY.