Jeep Cherokee 2000 Service Manual - page 1437
CONDITION
POSSIBLE CAUSES
CORRECTION
NO LOW GEAR (MOVES
IN 2ND OR 3RD GEAR
ONLY)
1. Governor Valve Sticking.
1. Remove governor, clean, inspect and
repair as required.
2. Valve Body Malfunction.
2. Remove, clean and inspect. Look for
sticking 1-2 shift valve, 2-3 shift valve,
governor plug or broken springs.
3. Front Servo Piston Cocked in
Bore.
3. Inspect servo and repair as required.
4. Front Band Linkage Malfunction
4. Inspect linkage and look for bind in
linkage.
NO KICKDOWN OR
NORMAL DOWNSHIFT
1. Throttle Linkage Misadjusted.
1. Adjust linkage.
2. Accelerator Pedal Travel
Restricted.
2. Floor mat under pedal, accelerator cable
worn or brackets bent.
3. Governor/Valve Body Hydraulic
Pressures Too High or Too Low Due
to Sticking Governor, Valve Body
Malfunction or Incorrect Hydraulic
Control Pressure Adjustments.
3. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
4. Valve Body Malfunction.
4. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
5. Valve Body Malfunction.
5. Sticking 1-2, 2-3 shift valves, or governor
plugs.
STUCK IN LOW GEAR
(WILL NOT UPSHIFT)
1. Throttle Linkage Misadjusted/
Stuck.
1. Adjust linkage and repair linkage if worn
or damaged. Check for binding cable or
missing return spring.
2. Gearshift Linkage Misadjusted.
2. Adjust linkage and repair linkage if worn
or damaged.
3. Governor/Valve Body, Governor
Valve Stuck Closed; Loose Output
Shaft Support or Governor Housing
Bolts, Leaking Seal Rings or Valve
Body Problem (i.e., Stuck 1- 2 Shift
Valve/Gov. Plug).
3. Check line and governor pressures to
determine cause. Correct as required.
4. Front Band Out of Adjustment.
4. Adjust Band.
5. Clutch or Servo Malfunction.
5. Air pressure check operation of clutches
and bands. Repair faulty component.
CREEPS IN NEUTRAL
1. Gearshift Linkage Misadjusted.
1. Adjust linkage.
2. Rear Clutch Dragging/Warped
Welded.
2. Disassemble and repair.
3. Valve Body Malfunction.
3. Perform hydraulic pressure test to
determine cause and repair as required.
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 137
DIAGNOSIS AND TESTING (Continued)