2002 LAND ROVER DISCOVERY Fuel system
[x] Cancel search: Fuel systemPage 4 of 1672
CONTENTS
CONTENTS 1
INTRODUCTION ...................................................................................... 01-1
How To Use This Manual................................................................................................................ 01-1
Repairs and Replacements ............................................................................................................. 01-1
Specifications .................................................................................................................................. 01-2
Abbreviations and Symbols ............................................................................................................ 01-3
GENERAL INFORMATION ...................................................................... 03-1
General Precautions ....................................................................................................................... 03-1
Safety Instructions .......................................................................................................................... 03-2
Environmental Precautions ............................................................................................................. 03-3
General Fitting Instructions ............................................................................................................. 03-6
Ball and Roller Bearings ................................................................................................................. 03-7
Oil Seals.......................................................................................................................................... 03-8
Joints and Joint Faces .................................................................................................................... 03-9
Locking Devices .............................................................................................................................. 03-9
Screw Threads ................................................................................................................................ 03-10
Bolt and Nut Identification ............................................................................................................... 03-11
Flexible Pipes and Hoses ............................................................................................................... 03-13
Rolling Road Testing....................................................................................................................... 03-15
Fuel Handling Precautions .............................................................................................................. 03-16
Electrical Precautions ..................................................................................................................... 03-17
Supplementary Restraint System Precautions ............................................................................... 03-18
SRS Component Replacement Policy ............................................................................................ 03-23
Air Conditioning System Precautions .............................................................................................. 03-24
Air Conditioning Compressor Replacement .................................................................................... 03-26
Body Repairs .................................................................................................................................. 03-26
GENERAL DATA ..................................................................................... 04-1
Engine - Td5 ................................................................................................................................... 04-1
Engine - V8 ..................................................................................................................................... 04-4
Fuel system - Td5 ........................................................................................................................... 04-8
Fuel system - V8 ............................................................................................................................. 04-9
Cooling system - Td5 ...................................................................................................................... 04-9
Cooling system - V8 ........................................................................................................................ 04-10
Clutch - Td5 .................................................................................................................................... 04-10
Clutch - V8 ...................................................................................................................................... 04-11
Manual gearbox - R380 .................................................................................................................. 04-12
Transfer box - LT230SE .................................................................................................................. 04-13
Automatic gearbox - ZF4HP22/24 .................................................................................................. 04-13
Rear axle......................................................................................................................................... 04-13
Front axle ........................................................................................................................................ 04-13
Steering........................................................................................................................................... 04-14
Suspension ..................................................................................................................................... 04-15
Brakes ............................................................................................................................................. 04-16
Wheels and tyres ............................................................................................................................ 04-16
Air conditioning ............................................................................................................................... 04-17
Electrical - Td5 ................................................................................................................................ 04-17
Electrical - V8 .................................................................................................................................. 04-17
Dimensions ..................................................................................................................................... 04-18
Weights ........................................................................................................................................... 04-18
Page 6 of 1672
CONTENTS
CONTENTS 3
Alarm handset battery ..................................................................................................................... 10-6
Road wheels ................................................................................................................................... 10-7
Tyres .............................................................................................................................................. 10-7
Brake pads, discs and calipers ....................................................................................................... 10-7
Road wheel speed sensors ............................................................................................................. 10-7
Brake fluid ....................................................................................................................................... 10-8
Fuel filter - diesel engine ................................................................................................................. 10-8
Fuel filter sedimenter ...................................................................................................................... 10-8
Road wheels ................................................................................................................................... 10-8
Radiator/Intercooler ........................................................................................................................ 10-8
Ambient air Temperature and pressure sensor .............................................................................. 10-8
Doors, bonnet and fuel filler flap ..................................................................................................... 10-9
Air suspension intake filter .............................................................................................................. 10-9
Anti-freeze....................................................................................................................................... 10-9
Cooling system ............................................................................................................................... 10-9
Spark plugs - V8 engine.................................................................................................................. 10-10
Air cleaner - V8 engine ................................................................................................................... 10-11
Air cleaner and dump valve - diesel engine .................................................................................... 10-11
Auxiliary drive belt ........................................................................................................................... 10-11
Auxiliary drive belt - V8 engine ....................................................................................................... 10-12
Auxiliary drive belt - diesel engine .................................................................................................. 10-12
Fluid reservoirs ............................................................................................................................... 10-12
Steering box .................................................................................................................................... 10-13
Battery ............................................................................................................................................. 10-13
Intercooler - diesel engine............................................................................................................... 10-14
Engine oil - V8 engine ..................................................................................................................... 10-14
Engine oil - diesel engine ................................................................................................................ 10-14
Centrifuge rotor – diesel engine ...................................................................................................... 10-15
Engine oil filter - diesel engine ........................................................................................................ 10-15
Engine oil filter – V8 engine ............................................................................................................ 10-15
Manual gearbox .............................................................................................................................. 10-16
Automatic gearbox ......................................................................................................................... 10-17
Transfer box .................................................................................................................................... 10-18
Front and rear axle .......................................................................................................................... 10-19
Propeller shafts ............................................................................................................................... 10-19
Anti-roll bar links ............................................................................................................................. 10-20
ACE actuators ................................................................................................................................. 10-21
ACE filter ......................................................................................................................................... 10-21
Brake hose, brake, fuel, ACE, clutch pipes and unions/electrical harnesses ................................ 10-22
Engine, gearbox, transfer box and axles ........................................................................................ 10-23
Exhaust system............................................................................................................................... 10-23
Steering box and front suspension ................................................................................................. 10-23
Steering rod ball joints ................................................................................................................... 10-25
Dampers and SLS height sensors .................................................................................................. 10-25
Front and rear axle suspension links .............................................................................................. 10-26
Towing bracket................................................................................................................................ 10-27
Engine mountings - V8 engine ........................................................................................................ 10-27
Road/roller test................................................................................................................................ 10-28
ENGINE - Td5 ........................................................................................... 12-1-1
DESCRIPTION AND OPERATION
Td5 Engine...................................................................................................................................... 12-1-1
Cylinder block components ............................................................................................................. 12-1-2
Page 9 of 1672
CONTENTS
6CONTENTS
EGR systems .................................................................................................................................. 17-1-10
REPAIRS
Modulator - EGR ........................................................................................................................... 17-1-13
Inlet Throttle (ILT) Modulator .......................................................................................................... 17-1-13
Valve - EGR - Pre EU3 models ...................................................................................................... 17-1-14
Valve - EGR - EU3 models ............................................................................................................. 17-1-15
EMISSION CONTROL - V8 ....................................................................... 17-2-1
DESCRIPTION AND OPERATION
Crankcase emission control system ............................................................................................... 17-2-1
Exhaust emission control ................................................................................................................ 17-2-2
Evaporative emission system component layout ............................................................................ 17-2-3
Evaporative emission system (with positive pressure leak detection) component layout (NAS only) 17-2-4
Evaporative emission system control diagram ............................................................................... 17-2-5
Secondary air injection system component layout.......................................................................... 17-2-6
Secondary air injection system control diagram ............................................................................. 17-2-8
Emission Control Systems .............................................................................................................. 17-2-9
Crankcase emission control system ............................................................................................... 17-2-9
Exhaust emission control system ................................................................................................... 17-2-10
Evaporative emission control system ............................................................................................. 17-2-15
Secondary air injection system ....................................................................................................... 17-2-26
Crankcase emission control operation............................................................................................ 17-2-33
Exhaust emission control operation ................................................................................................ 17-2-34
Evaporative emission control operation .......................................................................................... 17-2-38
Secondary air injection system ....................................................................................................... 17-2-42
REPAIRS
Canister - EVAP ............................................................................................................................ 17-2-43
Canister - EVAP - Models with Fuel Leak Detection Pump - up to 03MY ...................................... 17-2-43
Canister - EVAP - Models with Fuel Leak Detection Pump - from 03MY ....................................... 17-2-44
Valve - purge control ..................................................................................................................... 17-2-46
Solenoid - evap canister vent solenoid (CVS) valve ..................................................................... 17-2-46
Sensor - heated oxygen (HO2S) - pre-catalytic converter .............................................................. 17-2-47
Sensor - heated oxygen (HO2S) - post-catalytic converter ............................................................ 17-2-48
Control Valve - Secondary Air Injection (SAI) ............................................................................... 17-2-49
Reservoir - Vacuum - Secondary Air Injection (SAI) - up to 03MY ................................................. 17-2-49
Reservoir - vacuum - Secondary Air Injection (SAI) - from 03MY .................................................. 17-2-50
Pump - Air - Secondary Air Injection (SAI) ..................................................................................... 17-2-50
Air Manifold - LH - Secondary Air Injection (SAI) ........................................................................... 17-2-51
Air Manifold - RH - Secondary Air Injection (SAI) .......................................................................... 17-2-51
Solenoid - Vacuum - Secondary Air Injection (SAI) ...................................................................... 17-2-52
Pipe - Secondary Air Injection (SAI) .............................................................................................. 17-2-52
Pump - Fuel Leak Detection - up to 03MY...................................................................................... 17-2-54
Pump - fuel leak detection - from 03MY ......................................................................................... 17-2-54
Filter - fuel leak detection pump - up to 03MY ................................................................................ 17-2-55
Filter - fuel leak detection pump - from 03MY ................................................................................. 17-2-55
ENGINE MANAGEMENT SYSTEM - Td5 ................................................ 18-1-1
DESCRIPTION AND OPERATION
Engine management component location - passenger compartment ............................................ 18-1-2
Engine management component location - engine compartment .................................................. 18-1-3
Engine management block diagram ............................................................................................... 18-1-4
Description ...................................................................................................................................... 18-1-6
Page 10 of 1672
CONTENTS
CONTENTS 7
Operation ........................................................................................................................................ 18-1-38
ADJUSTMENTS
Glow plug ....................................................................................................................................... 18-1-45
REPAIRS
Engine control module (ECM) ........................................................................................................ 18-1-47
Sensor - engine coolant temperature (ECT) ................................................................................. 18-1-47
Sensor - crankshaft (CKP) .............................................................................................................. 18-1-48
Air filter assembly ........................................................................................................................... 18-1-48
Element - air filter ............................................................................................................................ 18-1-49
Sensor - fuel temperature .............................................................................................................. 18-1-50
Sensor - mass air flow (MAF) ....................................................................................................... 18-1-51
Sensor - combined MAP and IAT ................................................................................................. 18-1-51
Sensor - ambient air pressure (AAP) ............................................................................................ 18-1-52
Element - fuel filter ........................................................................................................................ 18-1-53
Cooler - fuel .................................................................................................................................. 18-1-53
Sensor - Throttle position (TP) ........................................................................................................ 18-1-54
Turbocharger ................................................................................................................................ 18-1-55
Intercooler ..................................................................................................................................... 18-1-56
Valve - solenoid boost control ........................................................................................................ 18-1-58
Regulator - fuel pressure .............................................................................................................. 18-1-59
Glow plugs ...................................................................................................................................... 18-1-60
Injectors .......................................................................................................................................... 18-1-61
Switch - cruise control (on/off) ........................................................................................................ 18-1-62
Switch - cruise control (set/resume) ................................................................................................ 18-1-63
Switch - clutch ................................................................................................................................. 18-1-63
ENGINE MANAGEMENT SYSTEM - V8 .................................................. 18-2-1
DESCRIPTION AND OPERATION
Engine management component location - Passenger compartment ............................................ 18-2-2
Engine management component location - Engine compartment .................................................. 18-2-3
Engine management block diagram ............................................................................................... 18-2-4
Description - engine management .................................................................................................. 18-2-6
Operation - engine management .................................................................................................... 18-2-43
DESCRIPTION AND OPERATION
Cruise control component layout .................................................................................................... 18-2-55
Cruise control block diagram .......................................................................................................... 18-2-56
Description - cruise control ............................................................................................................. 18-2-57
Operation - cruise control................................................................................................................ 18-2-66
ADJUSTMENTS
Cable - throttle ............................................................................................................................. 18-2-69
Cable - cruise control .................................................................................................................... 18-2-69
REPAIRS
Spark plugs .................................................................................................................................. 18-2-71
Coil - ignition ................................................................................................................................. 18-2-71
Engine control module (ECM) ......................................................................................................... 18-2-72
Sensor - engine coolant temperature (ECT) ................................................................................ 18-2-73
Sensor - crankshaft position (CKP) ............................................................................................... 18-2-74
Sensor - radiator temperature ....................................................................................................... 18-2-75
Sensor - camshaft position (CMP) ................................................................................................. 18-2-76
Page 11 of 1672
CONTENTS
8CONTENTS
Knock sensor (KS) .......................................................................................................................... 18-2-76
Air cleaner assembly .................................................................................................................... 18-2-77
Element - air filter .......................................................................................................................... 18-2-78
Cable - throttle ................................................................................................................................ 18-2-78
Sensor - Mass Air Flow (MAF) ...................................................................................................... 18-2-79
Throttle Body .................................................................................................................................. 18-2-80
Plenum chamber............................................................................................................................. 18-2-81
Sensor - throttle position (TP) ....................................................................................................... 18-2-82
Valve - idle air control (IACV) ....................................................................................................... 18-2-82
Injectors ......................................................................................................................................... 18-2-83
Actuator - cruise control ................................................................................................................ 18-2-84
Vacuum control unit - up to 03MY .................................................................................................. 18-2-85
Vacuum control unit - from 03MY ................................................................................................... 18-2-85
Cable - cruise control ..................................................................................................................... 18-2-86
Switch - cruise control (on/off) ........................................................................................................ 18-2-87
Switch - cruise control (set/resume) .............................................................................................. 18-2-87
Switch - clutch pedal - cruise control ............................................................................................ 18-2-88
ECU - Cruise control ..................................................................................................................... 18-2-88
FUEL DELIVERY SYSTEM - Td5 ............................................................. 19-1-1
DESCRIPTION AND OPERATION
Fuel delivery system component location ....................................................................................... 19-1-1
Fuel tank and breather components ............................................................................................... 19-1-2
Description ...................................................................................................................................... 19-1-3
Operation ........................................................................................................................................ 19-1-11
ADJUSTMENTS
Fuel system purging ....................................................................................................................... 19-1-13
Fuel tank - drain .............................................................................................................................. 19-1-13
REPAIRS
Switch - inertia - fuel cut-off ............................................................................................................ 19-1-15
Pump - fuel .................................................................................................................................... 19-1-15
Tank - fuel ..................................................................................................................................... 19-1-17
Solenoid - fuel filler flap release .................................................................................................... 19-1-18
Switch - fuel filler flap release - up to 03MY ................................................................................... 19-1-18
Switch - fuel filler flap release - from 03MY .................................................................................... 19-1-19
FUEL DELIVERY SYSTEM - V8 ............................................................... 19-2-1
DESCRIPTION AND OPERATION
Fuel delivery system ....................................................................................................................... 19-2-1
Fuel tank and breather components (all except NAS) .................................................................... 19-2-2
Fuel tank and breather components (NAS) .................................................................................... 19-2-3
Description ...................................................................................................................................... 19-2-4
Operation ........................................................................................................................................ 19-2-10
ADJUSTMENTS
Fuel tank - drain .............................................................................................................................. 19-2-11
REPAIRS
Switch - inertia - fuel cut-off ............................................................................................................ 19-2-13
Pump - fuel .................................................................................................................................... 19-2-13
Tank - fuel ...................................................................................................................................... 19-2-15
Filler tube - fuel ............................................................................................................................. 19-2-16
Page 12 of 1672
CONTENTS
CONTENTS 9
Solenoid - fuel filler flap release ...................................................................................................... 19-2-17
Switch - fuel filler flap release - up to 03MY .................................................................................... 19-2-17
Switch - fuel filler flap release - from 03MY..................................................................................... 19-2-18
COOLING SYSTEM - Td5 ........................................................................ 26-1-1
DESCRIPTION AND OPERATION
Cooling system component layout .................................................................................................. 26-1-2
Cooling system coolant flow ........................................................................................................... 26-1-4
Description ...................................................................................................................................... 26-1-5
Operation ........................................................................................................................................ 26-1-10
ADJUSTMENTS
Drain and refill ................................................................................................................................ 26-1-13
REPAIRS
Fan - viscous .................................................................................................................................. 26-1-15
Radiator ......................................................................................................................................... 26-1-15
Thermostat ..................................................................................................................................... 26-1-17
Pump - coolant ............................................................................................................................... 26-1-18
COOLING SYSTEM - V8 .......................................................................... 26-2-1
DESCRIPTION AND OPERATION
Cooling system component layout .................................................................................................. 26-2-2
Cooling system coolant flow ........................................................................................................... 26-2-4
Description ...................................................................................................................................... 26-2-6
Operation ........................................................................................................................................ 26-2-10
ADJUSTMENTS
Drain and refill ................................................................................................................................. 26-2-13
REPAIRS
Fan - viscous................................................................................................................................... 26-2-15
Radiator ......................................................................................................................................... 26-2-15
Thermostat ...................................................................................................................................... 26-2-18
Gasket - coolant pump .................................................................................................................. 26-2-18
MANIFOLDS AND EXHAUST SYSTEMS - Td5 ...................................... 30-1-1
DESCRIPTION AND OPERATION
Manifold component layout ............................................................................................................. 30-1-1
Exhaust system component layout ................................................................................................. 30-1-2
Description ...................................................................................................................................... 30-1-3
REPAIRS
Pipe - front ..................................................................................................................................... 30-1-5
Gasket - inlet manifold ................................................................................................................... 30-1-6
Gasket - exhaust manifold ............................................................................................................. 30-1-8
Page 24 of 1672
CONTENTS
CONTENTS 21
PAINTING ................................................................................................ 77-5-1
PROCEDURES
Panel preparation............................................................................................................................ 77-5-1
Paint preparation............................................................................................................................. 77-5-2
HEATING AND VENTILATION................................................................. 80-1
DESCRIPTION AND OPERATION
Heating and ventilation component layout ...................................................................................... 80-1
Fuel burning heater component layout ........................................................................................... 80-2
Description ...................................................................................................................................... 80-3
Operation ........................................................................................................................................ 80-13
REPAIRS
Heater control and fan switch ....................................................................................................... 80-15
Cables - heater control .................................................................................................................. 80-15
Servo - recirculation flap ............................................................................................................... 80-17
Switch - recirculation control ......................................................................................................... 80-18
Servo - air distribution control ........................................................................................................ 80-19
Servo - air temperature control ....................................................................................................... 80-20
Plenum Air Intake ........................................................................................................................... 80-20
Heater assembly - models without air conditioning ......................................................................... 80-21
Heater assembly - models with air conditioning .............................................................................. 80-23
Blower assembly ............................................................................................................................ 80-25
Motor - blower ............................................................................................................................. 80-26
Resistor pack - power resistor A/C ............................................................................................... 80-27
Heater matrix ................................................................................................................................ 80-28
Pipe - Heater - Feed ...................................................................................................................... 80-29
Pipe - Heater - Return .................................................................................................................... 80-29
Fuel burning heater - (FBH) - Td5................................................................................................... 80-30
AIR CONDITIONING ................................................................................. 82-1
DESCRIPTION AND OPERATION
A/C refrigerant system component layout ....................................................................................... 82-1
A/C control system component layout ............................................................................................ 82-2
Description ...................................................................................................................................... 82-3
Operation ........................................................................................................................................ 82-18
DESCRIPTION AND OPERATION
Rear A/C refrigerant system component layout .............................................................................. 82-23
Rear A/C distribution and control component layout ....................................................................... 82-24
Description ...................................................................................................................................... 82-25
Operation ........................................................................................................................................ 82-27
REFRIGERANT RECOVERY, RECYCLING AND RECHARGING
Refrigerant recovery, recycling and recharging .............................................................................. 82-29
REPAIRS
Compressor - diesel ........................................................................................................................ 82-31
Compressor - V8 ............................................................................................................................. 82-32
Fan - condenser ............................................................................................................................ 82-33
Page 32 of 1672
INTRODUCTION
01-3
Abbreviations and Symbols
A Amperes
AAP Ambient Air Pressure
AAT Ambient Air Temperature
ABDC After Bottom Dead Centre
ABS Anti-Lock Brake System
ABS / TC Anti-lock Brake System / Traction
Control
ac Alternating current
A/C Air Conditioning
ACE Active Cornering Enhancement
ACEA Association of Constructors of
European Automobiles
AFR Air Fuel Ratio
AP Ambient Pressure
ASC Anti-shunt Control
ATC Air Temperature Control
ATDC After Top Dead Centre
AUX Auxiliary
AVC Automatic Volume Control
BBDC Before Bottom Dead Centre
BBUS Battery Backed Up Sounder
BCU Body Control Unit
BDC Bottom Dead Centre
bhp Brake Horse Power
BP Boost Pressure
BPP Brake Pedal Position
BS British Standard
BTDC Before Top Dead Centre
BWD Backward
C Celsius
CAN Controller Area Network
CD Compact Disc
CDC Centre Differential Control
CDL Central Door Locking
CD - ROM Compact Disc - Read Only
Memory
CFC Chlorofluorocarbon
CHMSL Centre High Mounted Stop Lamp
CKP Crankshaft Position
CLV Calculated Load Value
cm Centimetre
cm
2Square centimetre
cm3Cubic centimetre
CMP Camshaft Position
CPP Clutch Pedal Position
CO Carbon Monoxide
CO
2Carbon Dioxide
COB Clear Over Base
CR Common Rail
CVS Canister Vent Solenoid
dB Decibels
DDM Driver's Door Module
deg. Degree, angle or temperature
DI Direct Injection
dia. DiameterDIN Deutsche Industrie Normen
(German Industrial Standards)
dc Direct current
DCV Directional Control Valve
DOHC Double Overhead Camshaft
DSP Digital Signal Processing
DTI Dial Test Indicator
DMF Dual Mass Flywheel
DVD Digital Versatile Disc
EACV Electronic Air Control Valve
EAT Electronic Automatic
Transmission
EBD Electronic Brake pressure
Distribution
ECD European Community Directive
ECM Engine Control Module
ECT Engine Coolant Temperature
ECU Electronic Control Unit
EDC Electronic Diesel Control
EEPROM Electronic Erasable
Programmable Read Only
Memory
EGR Exhaust Gas Recirculation
EKA Emergency Key Access
ELR Emergency Locking Retractor
EN European Norm
EOBD European On Board Diagnostics
EON Enhanced Other Network
ERL Electrical Reference Library
ETC Electronic Traction Control
EUI Electronic Unit Injector
EVAP Evaporative Emission
EVR Electronic Vacuum Regulator
F Fahrenheit
ft. Feet
FBH Fuel Burning Heater
FET Field Effect Transistor
FIP Fuel Injection Pump
FTC Fast Throttle Control
FWD Forward
> Greater than
g Gramme or Gravity
gal. Gallons
GMT Greenwich Mean Time
GPS Global Positioning System
hHour
hc High compression
HC Hydro Carbons
HDC Hill Descent Control
HDOP Height Dilation Of Precision
HDPE High Density Polyethylene
HFS Heated Front Screen
Hg Mercury
HO
2S Heated Oxygen Sensor
HMW High Molecular Weight