ZF
SYMPTOM 10 - None or harsh engagement of
direct drive clutch
SYMPTOM 15 - No kickdown 4th to 3rd
FAULT - 4th to 3rd kickdown valve stuck.
NOTE: The direct drive clutch will only
engage if 4th gear is engaged at 40 to 45
mph.
SYMPTOM 16 - Upshifts/downshifts and kickdown
shifts at incorrect road speeds
Check throttle kickdown cable adjustment
Carry out main line pressure check
Carry out road test pressure check with gauge
connected to torque converter.
œ Normal pressure
œ Normal pressure
FAULT - Failed direct drive clutch
œ Pressures correct but remains high
FAULTS POSSIBLE -
FAULT - Governor valve sticking
œ Incorrect pressure
FAULTS POSSIBLE -
Direct drive clutch and torque converter
control valve stuck
Incorrect throttle valve adjustment
Primary regulator sticking
Hysteresis valve stuck
Direct drive clutch control valve stuck
SYMPTOM 17 - No upshifts at light throttle
FAULTS POSSIBLE
SYMPTOM 11 - Direct drive clutch shift point
incorrect or at low speed
Governor valve sticking
Shift valves sticking
NOTE: Direct drive clutch engagement at
low speed will cause vibration in the
torque converter
SYMPTOM 18 - No engine braking ’3’ selected 3rd
gear
FAULT - Clutch ’C’
Carry out mainline and torque converter pressure
check
œ Normal pressure
SYMPTOM 19 - Delayed or no downshift occurs
when making a manual selection from ’3’ to ’2’
FAULTS POSSIBLE -
FAULT - Governor valve sticking
œ Low or incorrect pressure
FAULTS POSSIBLE -
2nd and 3rd upshift valve sticking.
Governor valve sticking.
’2’ Position interlock valve sticking.
Direct drive clutch and torque converter
control valve sticking.
Hysteresis valve stuck.
SYMPTOM 20 - At speeds below 28 mph when
making a manual selection from ’2’ to ’1’,
downshift is delayed or does not occur
FAULTS POSSIBLE -
Direct drive clutch control valve stuck.
SYMPTOM 12 - Drives in ’D’ but immediately
upshifts to 3rd
Governor sticking.
1st to 2nd shift valve sticking.
FAULT - 2nd to 3rd shift valve stuck.
’1’ Position interlock valve sticking.
SYMPTOM 13 - With ’D’ selected vehicle starts in
2nd
SYMPTOM 21 - ’1’ Selected 1st gear no engine
braking
FAULT - Clutch brake 3
FAULTS POSSIBLE -
1st and 2nd shift valve stuck.
Governor sleeve sticking.
SYMPTOM 22 - ’2’ Selected 2nd gear no engine
braking
FAULT - Clutch brake 1
SYMPTOM 14 - With ’D’ selected vehicle starts in
3rd
SYMPTOM 23 - Vehicle drives forward in ’N’
FAULT - Clutch ’A’ stuck
FAULTS POSSIBLE -
1st to 2nd and 2nd to 3rd shift valves stuck.
Governor sleeve sticking.
FAULT DIAGNOSIS
11
| Categories | Land Rover Discovery, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | Discovery |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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