(11) Engagement time in D range should be a
maximum of 1.2 seconds. Engagement time for
Reverse should be a maximum of 1.5 seconds.
TIME LAG TEST ANALYSIS
If engagement time is longer than specified for D
range, check for the following:
• shift cable misadjusted
• line pressure low
• forward clutch worn
• overdrive clutch worn or damaged
If engagement time is longer than specified for
Reverse, check for the following:
• shift cable misadjusted
• line pressure low
• direct clutch worn
• first/reverse brake worn
• overdrive clutch worn or damaged
SERVICE DIAGNOSIS
DIAGNOSIS TABLE
CONDITION POSSIBLE CAUSE CORRECTION
VEHICLE WILL NOT BACK UP OR
MOVE FORWARD
Shift cable out of adjustment or
damaged
Adjust cable or replace cable
Valve body or primary regulator
faulty
Inspect/repair valve body
Park lock pawl faulty Repair park pawl
Torque converter faulty Replace torque converter
Converter drive plate broken Replace drive plate
Oil pump intake screen blocked Clean screen
Transmission faulty Disassemble and repair
transmission
SHIFT LEVER POSITION
INCORRECT
Shift cable out of adjustment Adjust cable
Manual valve and lever faulty Repair valve body
HARSH ENGAGEMENT Throttle cable out of adjustment Adjust throttle cable
Valve body or primary regulator
faulty
Repair valve body
Accumulator pistons faulty Repair pistons
Transmission faulty Disassemble and repair
transmission
DELAYED 1-2, 2-3 OR 3-4
UP-SHIFT, OR DOWN-SHIFTS
FROM 4-3 OR 3-2 AND SHIFTS
BACK TO 4 OR 3
Electronic control problem Locate problem with DRB Tester
Valve body faulty Repair valve body
Solenoid faulty Repair solenoid
SLIPS ON 1-2, 2-3 OR 3-4
UP-SHIFT, OR SLIPS OR
SHUDDERS DURING
ACCELERATION
Shift cable out of adjustment Adjust cable
Throttle cable out of adjustment Adjust cable
Valve body faulty Repair valve body
Solenoid faulty Replace solenoid
Transmission faulty Disassemble and repair
transmission
XJ AW–4 AUTOMATIC TRANSMISSION 21 - 243
DIAGNOSIS AND TESTING (Continued)
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