Jeep Wrangler 1997 Manual - page 994
DIAGNOSIS CHART (CONTINUED)
CONDITION
POSSIBLE CAUSES
CORRECTION
10. Governor Valve Stuck.
10. Remove and inspect governor
components. Replace worn or
damaged parts.
11. Regulator Valve Stuck.
11. Clean.
12. Cooler Plugged.
12. Flush transmission cooler and
inspect convertor drainback valve.
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.
21 - 88
TRANSMISSION AND TRANSFER CASE
TJ
DIAGNOSIS AND TESTING (Continued)