Jeep Cherokee 2000 Service Manual - page 1435
CONDITION
POSSIBLE CAUSES
CORRECTION
NO DRIVE RANGE
(REVERSE OK)
1. Fluid Level Low.
1. Add fluid and check for leaks if drive is
restored.
2. Gearshift Linkage/Cable
Loose/Misadjusted.
2. Repair or replace linkage components.
3. Rear Clutch Burnt.
3. Remove and disassemble transmission
and rear clutch and seals. Repair/replace
worn or damaged parts as needed.
4. Valve Body Malfunction.
4. Remove and disassemble valve body.
Replace assembly if any valves or bores
are damaged.
5. Transmission Overrunning Clutch
Broken.
5. Remove and disassemble transmission.
Replace overrunning clutch.
6. Input Shaft Seal Rings Worn/
Damaged.
6. Remove and disassemble transmission.
Replace seal rings and any other worn or
damaged parts.
7. Front Planetary Failed Broken.
7. Remove and repair.
NO DRIVE OR REVERSE
(VEHICLE WILL NOT
MOVE)
1. Fluid Level Low.
1. Add fluid and check for leaks if drive is
restored.
2. Gearshift Linkage/Cable
Loose/Misadjusted.
2. Inspect, adjust and reassemble linkage
as needed. Replace worn/damaged parts.
3. U-Joint/Axle/Transfer Case
Broken.
3. Perform preliminary inspection procedure
for vehicle that will not move. Refer to
procedure in diagnosis section.
4. Filter Plugged.
4. Remove and disassemble transmission.
Repair or replace failed components as
needed. Replace filter. If filter and fluid
contained clutch material or metal particles,
an overhaul may be necessary. Perform
lube flow test. Flush oil. Replace cooler as
necessary.
5. Oil Pump Damaged.
5. Perform pressure test to confirm low
pressure. Replace pump body assembly if
necessary.
6. Valve Body Malfunctioned.
6. Check press and inspect valve body.
Replace valve body (as assembly) if any
valve or bore is damaged. Clean and
reassemble correctly if all parts are in good
condition.
7. Transmission Internal Component
Damaged.
7. Remove and disassemble transmission.
Repair or replace failed components as
needed. Remove and disassemble
transmission. Repair or replace failed
components as needed.
8. Park Sprag not Releasing
8. Remove, disassemble, repair.
9. Torque Converter Damage.
9. Check Stall Speed, Worn/Damaged/
Stuck. Inspect and replace as required.
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 135
DIAGNOSIS AND TESTING (Continued)