2002 LAND ROVER DISCOVERY Workshop Manual

AUTOMATIC GEARBOX - ZF4HP22 - 24
44-52 REPAIRS
Refit
1.Clean MV2 shift control solenoid valve with lint
free cloth.
2.Position MV2 shift control solenoid valve to
valve body.
3.Position retaining fork, fit Torx screw and
tighten to 8 Nm (6 lbf.ft).
4.Connect multiplugs to both shift control
solenoid valves.
5.Clean lock-up solenoid valve assembly with a
lint-free cloth.
6.Position lock-up valve assembly, fit and tighten
Torx screws to 8 Nm (6 lbf.ft).
7.Fit valve body assembly.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Valve body assembly.
Harness - solenoid valves
$% 44.15.52
Remove
1.Remove valve body assembly.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Valve body assembly.
2.Release and remove clip securing pressure
regulator solenoid harness to valve body.
3.Disconnect multiplug from pressure regulator
solenoid valve.
4.Disconnect multiplugs from lock-up solenoid
valve, shift control solenoid valves MV 1 and
MV 2.
5.Release harness from 5 clips on valve body
and remove harness.
M44 1350
M44 1355

AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-53
6.Disconnect and remove speed sensor from
harness.
Refit
1.Connect speed sensor to harness multiplug.
2.Position harness to valve body.
3.Connect multiplugs to shift control solenoid
valves MV 1 and MV 2 and lock-up solenoid
valve.
4.Connect multiplug to pressure regulator
solenoid valve and secure solenoid valve
harness with clip to valve body.
5.Position and secure harness in clips on valve
body.
6.Fit valve body assembly.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Valve body assembly.
Electronic control unit - automatic
transmission
$% 44.15.46
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove 3 screws and trim clip securing lower
trim casing to LH front seat.
4.Remove 3 nuts securing speaker power
amplifier bracket to the body.
5.Disconnect multiplug from automatic
transmission ECU located on underside of
amplifier mounting bracket.
M44 1359

AUTOMATIC GEARBOX - ZF4HP22 - 24
44-54 REPAIRS
6.Remove 2 nuts securing ECU to mounting
bracket and remove ECU.
Refit
1.Position ECU to mounting bracket and secure
with nuts.
2.Connect multiplug to ECU.
3.Position speaker power amplifier mounting
bracket to body and secure with nuts.
4.Position lower trim casing to seat and secure
with screws and trim clip.
5.Connect battery earth lead.
6.Fit battery cover and secure fixings.

PROPELLER SHAFTS
DESCRIPTION AND OPERATION 47-1
PROPELLER SH AFTS DESCRIPTION AND OPERAT ION
Propeller shaft component layout
1Rear axle and brake discs
2Transfer box
3Front axle and brake discs
4Front propeller shaft
5Rear propeller shaft
M47 0237B
1
2
3
4
5

PROPELLER SHAFTS
47-2 DESCRIPTION AND OPERATION
Description
General
Front and rear propeller shafts transmit the drive from the transfer box to the axles.
On vehicles from 03 model year fitted with the 4.6l V8 engine and 4HP24 transmission, the front propeller shaft is 15
mm (0.6 in) longer and the rear propeller shaft is 15mm (0.6 in) shorter than those used on vehicles with the 4.0l V8
and Td5 engines. This is to accomodate an increase in length of the 4HP24 transmission.
Front propeller shaft
1Hookes joint
2Grease nipple
3Universal joint
4Gaiter/Sliding spline joint
5Lubrication point
The front propeller shaft consists of a tube with a universal joint and a sliding spline joint at the front end, and a
Hookes joint at the rear end. The universal joint is bolted to the pinion flange of the front axle differential. The Hookes
joint is bolted to the front output shaft of the transfer box.
The Hookes joint is lubricated during manufacture and sealed for life. A grease nipple is installed in the universal joint
to lubricate the serviceable, sealed needle bearings of the joint. The sliding spline joint is sealed with a gaiter and
lubricated through a lubrication point on the tube. Because of the proximity of a chassis crossmember to the front
propeller shaft, the lubrication point is normally sealed with a grub screw. During maintenance, the grub screw is
temporarily replaced by a slave grease nipple to lubricate the sliding spline joint.

PROPELLER SHAFTS
DESCRIPTION AND OPERATION 47-3
Rear propeller shaft
1Flexible coupling
2Grease nipple
3Universal joint
4Gaiter/Sliding spline joint
5Grease nipple
The rear propeller shaft consists of a tube with a universal joint and a sliding spline joint at the front end, and a flexible
coupling bolted to the rear end. The universal joint is bolted to the rear output shaft of the transfer box. The flexible
coupling is bolted to the pinion flange of the rear axle differential.
A grease nipple is installed in the universal joint for lubrication of the serviceable, sealed needle bearings in the joint.
The sliding spline joint is sealed with a gaiter and lubricated through a grease nipple in the tube.

PROPELLER SHAFTS
47-4 DESCRIPTION AND OPERATION

PROPELLER SHAFTS
REPAIRS 47-5
REPAIRS
Propeller shaft - front
$% 47.15.02
Remove
1.Raise front of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2.If same components to be refitted, reference
mark propeller shaft and mating components.
3.Remove 8 nuts and bolts securing propeller
shaft to differential and transfer gearbox
flanges.
4.Remove propeller shaft.
Refit
1.Clean propeller shaft flanges and mating
faces.
2.Position propeller shaft to transfer gearbox
and differential and tighten nuts and bolts to 47
Nm (35 lbf. ft).
3.Remove stand(s) and lower vehicle.
Propeller shaft - rear
$% 47.15.03
Remove
1.Raise rear of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2.If same components are to be refitted,
reference mark propeller shaft and mating
components.
3.Remove 4 nuts and bolts securing propellor
shaft to transfer gearbox flange.
4.Remove 3 nuts and bolts securing propeller
shaft to flexible coupling.
5.Remove propeller shaft.
Refit
1.Clean propeller shaft flanges and mating
faces.
2.Position propeller shaft to transfer gearbox and
flexible coupling.
3.Fit nuts and bolts securing propeller shaft to
transfer gearbox and tighten to 47 Nm (35
lbf.ft).
4.Fit nuts and bolts securing propeller shaft to
flexible coupling and tighten to 76 Nm (56 lbf.ft).
5.Lower vehicle.
M51 0043A
2
3