LAND ROVER DISCOVERY 2002 Workshop Manual

ENGINE MANAGEMENT SYSTEM - TD5
18-1-58 REPAIRS
3.Fit brackets with rubber mountings to
intercooler and fit and tighten screws securing
brackets to condenser.
4.Fit radiator upper mounting brackets and
tighten bolts.
5.Fit LH horn and secure with nut.
6.Connect inlet and outlet hoses to intercooler
and tighten clips.
7.Fit lower half of fan cowl and secure with
screws.
8.Fit LH and RH air deflectors to front panel and
secure with scrivets.
9.Fit front grille.
10.Fit battery carrier and secure with bolts.
11.Fit ECM and secure with screw.
12.Fit jack to battery carrier.
13.Fit battery.
14.Fit cooling fan and coupling.

+ COOLING SYSTEM - Td5, REPAIRS,
Fan - viscous.
Valve - solenoid boost control
$% 19.42.30
Remove
1.Loosen clip and release air intake hose from
MAF sensor.
2.Release clips and disconnect vacuum hoses
from solenoid valve.
3.Disconnect multiplug from solenoid valve.
4.Remove 2 bolts and remove solenoid valve.
Refit
1.Position solenoid valve and tighten bolts.
2.Connect multiplug to solenoid valve.
3.Connect vacuum hoses and secure with clips.
4.Position air intake hose to MAF sensor and
secure clip.

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-59
Regulator - fuel pressure
$% 19.45.06
Remove
1.Release turnbuckles and remove battery cover
2.Disconnect battery earth lead.
3.Remove 3 bolts and remove engine acoustic
cover.
4.Remove 2 bolts and remove engine lifting eye.
5.Position cloth to absorb fuel spillage.
6.Release and disconnect hose from fuel cooler. 7.Release and disconnect fuel hose from
pressure regulator.
Always fit plugs to open connections to
prevent contamination.
8.Disconnect multiplug from fuel temperature
sensor.
9.Remove 3 bolts, remove pressure regulator
from cylinder head and collect gasket.
10.Remove and discard 'O' ring and fuel filter.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-60 REPAIRS
11.Remove fuel temperature sensor and discard
sealing washer.
12.Remove fuel hose and fuel pipe and discard 'O'
rings.
Refit
1.Clean fuel pressure regulator and mating face.
2.Clean fuel pipe unions.
3.Using new 'O' rings, fit fuel pipe and fuel hose
to pressure regulator and tighten unions to 25
Nm (18 lbf.ft).
4.Using new sealing washer, fit fuel temperature
sensor and tighten to 14 Nm (10 lbf.ft).
5.Fit new fuel filter and 'O' ring.
6.Using a new gasket, position pressure
regulator and tighten bolts to 25 Nm (18 lbf.ft).
7.Connect multiplug to fuel temperature sensor.
8.Connect fuel hoses to pressure regulator and
fuel cooler.
9.Fit engine lifting eye and tighten bolts to 25 Nm
(18 lbf.ft).
10.Fit engine acoustic cover and tighten bolts to 10
Nm (6 lbf.ft).
11.Connect battery earth lead.
12.Fit battery cover and secure fixings.
Glow plugs
$% 19.60.31
Remove
1.Remove 3 bolts and remove engine acoustic
cover.
2.Release turnbuckles and remove battery cover.
3.Disconnect battery earth lead.
4.Disconnect 4 glow plug leads.
5.Loosen and remove 4 glow plugs.
Refit
1.Thoroughly clean glow plugs and seating area
in cylinder head.
2.Apply a suitable anti-sieze compound to
threads of glow plugs.
3.Fit glow plugs and tighten to 16 Nm (12 lbf. ft).
4.Connect glow plug leads.
5.Fit engine acoustic cover and secure fixings.
6.Connect battery earth lead.
7.Fit battery cover and secure fixings.

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-61
Injectors
$% 19.60.12
Remove
1.Remove cooling fan.

+ COOLING SYSTEM - Td5, REPAIRS,
Fan - viscous.
2.Remove rocker shaft.

+ ENGINE - Td5, REPAIRS, Rocker
shaft assembly.
3.Position container to catch fuel spillage.
4.Disconnect quick release fuel hose connectors
from fuel connector block on cylinder head and
fuel cooler to drain fuel from cylinder head. 5.Disconnect 5 multiplugs from injectors.
6.Remove 5 Torx bolts securing injectors to
cylinder head.
7.Using LRT-12-154/1, remove injectors from
cylinder head. Collect retainers.
8.Using LRT-12-154/4, remove sealing washers
from injectors. Discard sealing washers.
9.Remove and discard 'O' rings from injectors.
10.Rotate engine manually until each cylinder
being worked on is at TDC, and remove excess
fuel from piston bowl using a syringe.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-62 REPAIRS
Refit
1.Clean injector units and mating faces in
cylinder head.
2.Using LRT-12-154/2, fit a new 'O' ring to each
injector.
3.Using LRT-12-154/3, fit a new sealing washer
to each injector.
4.Fit retainer to injector. Carefully fit injector,
ensuring retainer is located on its dowel, and
tighten Torx bolt to 32 Nm (24 lbf.ft)
5.Connect multiplug to injector.
6.Repeat above operations for remaining
injectors.
7.Connect fuel hoses to connector block and fuel
cooler.
8.Programme new injectors using TestBook.
9.Fit rocker shaft.

+ ENGINE - Td5, REPAIRS, Rocker
shaft assembly.
10.Fit cooling fan.

+ COOLING SYSTEM - Td5, REPAIRS,
Fan - viscous.
Switch - cruise control (on/off)
$% 19.75.30
Remove
1.Carefully remove switch from instrument cowl.
2.Disconnect multiplug and remove switch.
Refit
1.Position new switch and connect multiplug.
2.Carefully push switch into instrument cowl.

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-63
Switch - cruise control (set/resume)
$% 19.75.33
Remove
1.Remove the key from the starter switch.
Disconnect both battery leads, negative lead
first. Wait ten minutes before starting work.
2.Remove driver's airbag module.

+ RESTRAINT SYSTEMS, REPAIRS,
Airbag module - drivers.
3.Release remote control switches multiplug and
leads from steering wheel base.
4.Disconnect remote control switches multiplug
from harness.
5.Remove 2 screws securing remote control
switches to steering wheel base.
6.Release and remove remote control switches
from steering wheel.
Refit
1.Fit remote control switches to steering wheel
and secure with screws.
2.Connect remote control switches multiplug to
harness.
3.Secure leads and multiplug to base of steering
wheel.
4.Fit driver's airbag module.

+ RESTRAINT SYSTEMS, REPAIRS,
Airbag module - drivers.
Switch - clutch
$% 19.75.34
Remove
1.Disconnect the multiplug from the clutch switch.
2.Position a container below the clutch switch to
collect the fluid.
3.Unscrew and remove the clutch switch.
CAUTION: Always fit plugs to open
connections to prevent contamination.
Refit
1.Fit the clutch switch and tighten to 10 Nm (7
lbf.ft).
2.Connect the multiplug.
3.Bleed the clutch hydraulic system.

+ CLUTCH - Td5, ADJUSTMENTS,
Clutch hydraulic system - bleed.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-64 REPAIRS

ENGINE MANAGEMENT SYSTEM - V8
DESCRIPTION AND OPERATION 18-2-1
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ENGIN E MANAGEMENT SY STEM - V8 DESCRIPTION AND OPERAT ION

ENGINE MANAGEMENT SYSTEM - V8
18-2-2 DESCRIPTION AND OPERATION
Engine management component
location - Passenger compartment
LHD illustrated
1Engine control module
2Diagnostic connector
3Malfunction indication lamp

ENGINE MANAGEMENT SYSTEM - V8
DESCRIPTION AND OPERATION 18-2-3
Engine management component
location - Engine compartment
1Mass air flow/ inlet air temperature sensor
2Fuel injectors
3High tension leads/spark plugs
4Fuel pump relay
5ATC compressor clutch relay/ cooling fan relay
6Throttle position sensor
7Heated oxygen sensor
8Idle air control valve
9Ignition coils
10Engine coolant temperature sensor
11Crankshaft speed and position sensor
12Knock sensor
13Camshaft position sensor