Chrysler DODGE D150 1993 Service Manual page 1102

+ AUTOMATIC TRANSMISSION—32RH/36RH/37RH/42RH/46RH 21 - 101
TRANSMISSION DIAGNOSIS
Condition Possible Cause Correction
CREEPS I N NEUTRAL
1. Gearshift linkage out of adjustment
2. Valve body malfunction (warped body, cross
leakage)
3. Clutch dragging
4 . Converter lockup clutch dragging
1. Adjust linkage
2. Perform hydraulic pressure test to determine
cause ana repair as required
3. Air pressure check operation of clutches and
repair as required
4. Oil pump worn; replace pump
D R A G S O R LOCKS UP
1. Front or rear band out of adjustment
2. Servo band or linkage malfunction (i.e., binding
linkage, warped band, servo piston stuck)
3. Dragging clutch (does not release fully)
4. Broken or seized planetary gears
5. Overrunning clutch worn, broken, or seized
1. Adjust bands
2. Air pressure check servo operation and repair
as required
3. Air pressure check clutch operation and repair
as required
4. Remove, inspect, and repair as required (look
for debris in oil pan)
5. Remove and inspect clutch, repair as required
G R O W L I N G , G R A T I N G , O R
SCRAPING N O I S E S
1. Planetary gear set broken or seized
2. Overrunning clutch worn, seized, or broken
3. Oil pump components scored, binding, or broken
4. Output shaft bearing or bushing damaged
5. Faulty clutch operation
6. Governor support (park gear) binding or seal rings
broken
7. Front and rear bands out of adjustment
1. Check for debris in oil pan and repair as
required
2. Inspect and check for debris in oil pan; repair as
required
3. Remove, inspect, and repair as required
4. Remove, inspect, and repair as required
5. Perform air pressure check and repair as
required
6. Remove, inspect, and repair as required
7. Adjust bands
BUZZING N O I S E 1. Low fluid level
2. Air being drawn into pump suction passages
3. Overrunning clutch damaged
4 . Valve body misassembled, bolts loose, weak spring,
or mispositioned valve or check ball
1. A d d fluid and check for leaks
2. Check pump for porous casting, scores on
mating surfaces, and excess rotor clearance;
repair as required
3. Replace clutch
4. Remove, disassemble, inspect valve body;
reassemble correctly if necessary; replace
assembly if valves or springs are damaged
J9121-446