ZF Automatic Transmissions Service Manual
Problem Possible Cause
1.3.6 Fault Finding Chart (continued)
Action
No changes at light throttle
setting
Change points incorrect at full
throttle setting
No changes at 'kick-down' - 1st
to 2nd 12nd to 1st
No changes at 'kick-down' - 2nd
to 3rd
13rd to 2nd Dirty
governor.
Shift valves sticking.
'Kick
-down' cable setting incorrect
'Kick
-down' cable setting incorrect
'Kick
-down' cable setting incorrect Renew
governor.
Service
1 renew valve block.
Adjust setting
Adjust setting
Adjust setting
Service
1 renew valve block.
Service
1 renew valve block.
Poor changes
Harsh changes at low throttle Throttle
valve ('kickdown') cable
, setting incorrect
I Defective damper.
Modulation pressure too high.
'Kick
-down' cable setting incorrect. I
j Clutch plates damaged.
!
Soft changes at full throttle and
'kick
-down' Defective damper.
'Kick-down' cable setting incorrect.
I
Adjust setting
Service
/ renew valve block.
Service
1 renew valve block.
Adjust setting
,
Service / renew transmission.
Service
/ renew valve block.
Adjust setting.
Adjust setting.
Harsh changes
at full throttle and
'kick
-down' Modulation
pressure too low.
Clutch plates damaged.
Incorrect modulation pressure.
'Kick
-down' cable setting incorrect.
Defective damper.
Manual change 3rd to 2nd faulty
No engine braking
36 Issue 1 August 1994
Locking valve '2' sticking. Service 1 renew valve
block I governor.
Service
/ renew valve block / governor.
Service
1 renew transmission
Governor faulty.
Brake 'C' or 'E' damaged
