Jeep Cherokee 1999 Electronic Service Manual page 1413

21 - 90 TRANSMISSION AND TRANSFER CASE
DI AGN OSI S AN D T EST I N G (Cont inue d)
CONDITION
NO START IN PARK OR
NEUTRAL
NO REVERSE (OR SLIPS
IN REVERSE)
OIL LEAKS (ITEMS
LISTED REPRESENT
POSSIBLE LEAK POINTS
AND SHOULD ALL BE
CHECKED.
POSSIBLE CAUSES
1. Gearshift Linkage/Cable
Misadjusted.
2. Neutral Switch Wire Open/Cut.
3. Neutral Switch Faulty.
4. Neutral Switch Connect Faulty.
5. Valve Body Manual Lever
Assembly Bent/Worn/Broken.
1. Direct Clutch Pack (front clutch)
Worn.
2. Rear Band Misadjusted.
3. Front Clutch Malfunctioned/Burnt.
1. Speedometer Adapter Leaks.
2. Fluid Lines and Fittings Loose/
Leaks/Damaged.
3. Filler Tube (where tube enters
case) Leaks/Damaged.
4. Pressure Port Plug Loose
Loose/Damaged.
5. Pan Gasket Leaks.
6. Valve Body Manual Lever Shaft
Seal Leaks/Worn.
7. Rear Bearing Access Plate Leaks.
8. Gasket Damaged or Bolts are
Loose.
9. Adapter/Extension Gasket
Damaged Leaks/Damaged.
10. Neutral Switch Leaks/Damaged.
11. Converter Housing Area Leaks.
12. Pump Seal Leaks/Worn/
Damaged.
13. Torque Converter Weld
Leak/Cracked Hub.
14. Case Porosity Leaks.
CORRECTION
1. Adjust linkage/cable.
2. Check continuity with test lamp. Repair
as required.
3. Refer to service section for test and
replacement procedure.
4. Connectors spread open. Repair.
5. Inspect lever assembly and replace if
damaged.
1. Disassemble unit and rebuild clutch
pack.
2. Adjust band.
3. Air pressure test clutch operation.
Remove and rebuild if necessary.
1. Replace both adapter seals.
2. Tighten fittings. If leaks persist, replace
fittings and lines if necessary.
3. Replace O-ring seal. Inspect tube for
cracks in tube.
4. Tighten to correct torque. Replace plug
or reseal if leak persists.
5. Tighten pan screws to 150 inch pounds.
If leaks persist, replace gasket. Do no over
tighten screws.
6. Replace shaft seal.
7. Replace gasket. Tighten screws.
8. Replace bolts or gasket or tighten both.
9. Replace gasket.
10. Replace switch and gasket.
11. Check for leaks at seal caused by worn
seal or burr on converter hub (cutting seal),
worn bushing, missing oil return, oil in front
pump housing or hole plugged. Check for
leaks past O-ring seal on pump or past
pump-to-case bolts; pump housing porous,
oil coming out vent due to overfill or leak
past front band shaft access plug.
12. Replace seal.
13. Replace converter.
14. Replace case.
X J