Jeep Cherokee 1999 Electronic Service Manual page 1410

X J
DI AGN OSI S AN D T EST I N G (Cont inue d)
CONDITION
NO LOW GEAR (MOVES
IN 2ND OR 3RD GEAR
ONLY)
NO KICKDOWN OR
NORMAL DOWNSHIFT
STUCK IN LOW GEAR
(WILL NOT UPSHIFT)
CREEPS IN NEUTRAL
POSSIBLE CAUSES
1. Governor Valve Sticking.
2. Valve Body Malfunction.
3. Front Servo Piston Cocked in
Bore.
4. Front Band Linkage Malfunction.
1. Throttle Linkage Misadjusted.
2. Accelerator Pedal Travel
Restricted.
3. Governor/Valve Body Hydraulic
Pressures Too High or Too Low Due
to Sticking Governor, Valve Body
Malfunction or Incorrect Hydraulic
Control Pressure Adjustments.
4. Valve Body Malfunction.
5. Valve Body Malfunction.
1. Throttle Linkage Misadjusted/
Stuck.
2. Gearshift Linkage Misadjusted.
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).
4. Front Band Out of Adjustment .
5. Clutch or Servo Malfunction.
1. Gearshift Linkage Misadjusted.
2. Rear Clutch Dragging/Warped
Welded.
3. Valve Body Malfunction.
TRANSMISSION AND TRANSFER CASE
CORRECTION
1. Remove governor, clean, inspect and
repair as required.
2. Remove, clean and inspect. Look for
sticking 1-2 shift valve, 2-3 shift valve,
governor plug or broken springs.
3. Inspect servo and repair as required.
4. Inspect linkage and look for bind in
linkage.
1. Adjust linkage.
2. Floor mat under pedal, accelerator cable
worn or brackets bent.
3. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
4. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
5. Sticking 1-2, 2-3 shift valves, or governor
plugs.
1. Adjust linkage and repair linkage if worn
or damaged. Check for binding cable or
missing return spring.
2. Adjust linkage and repair linkage if worn
or damaged.
3. Check line and governor pressures to
determine cause. Correct as required.
4. Adjust Band.
5. Air pressure check operation of clutches
and bands. Repair faulty component.
1. Adjust linkage.
2. Disassemble and repair.
3. Perform hydraulic pressure test to
determine cause and repair as required.
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