300Tdi Discovery
57
STEERING
6
FAULT DIAGNOSIS
STEERING STABILITY AND VEER UNDER
BRAKING
Possible cause:
Incorrectly set, swivel pin bearing preload. There are
three different settings for these bearings dependant
on model year and if fitted with ABS brakes.
Remedy.
1. Establish model year of vehicle.
2. If fitted with or without antilock brakes.
3. Follow instructions to overhaul front stub axle,
constant velocity joint and swivel pin non ABS,
or with ABS as appropriate.
See FRONT AXLE AND FINAL DRIVE,
Overhaul, Front Stub Axle, Constant Velocity
Joint and Swivel Pin Housing Non ABS See
FRONT AXLE AND FINAL DRIVE, Overhaul,
Front Stub Axle, Constant Velocity Joint and
Swivel Pin Housing ABS
1. GENERAL STEERING
1. Carry out visual and safety checks.
See Visual
and Safety Checks
2. Road test vehicle.
See Road Test Procedure
3. Is problem resolved?
YES - end
NO -
continue
4. Is problem stiff steering?
YES -
See Stiff Steering Checklist
NO -
Go to 6.
5. Is problem resolved?
YES - end
NO -
go to 8.
6. Is problem steering niggle ?
YES - Replace radius arm bushes, arm and
axle.
See FRONT SUSPENSION,
Repair, Radius Arm
NO -
go to 8.
7. Is problem resolved?
YES - end
NO -
continue.
8. Centralise steering box.
See Adjustment,
Centralise Steering Box
9. Is problem resolved?
YES - end
NO -
continue.
10. Check, adjust if necessary, steering geometry.
11. Is problem resolved?
YES - end
NO -
continue.
12. Categorise the remaining problems into one or
more of the following descriptions:
See 2. Steering Veer
See 3. Veer Under Braking
See 4. Directional Stability