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2003 Land Rover Discovery CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Land Rover REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Land Rover Discovery car and truck
repair procedures including Land Rover engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Land Rover Discovery automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Anti-lock Brakes -> Description -> 2001-02 -> 2003 -> Discovery -> Freelander -> Range Rover
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
Discovery
The ABS system, Fig. , is equipped with an ABS modulator, Self-Leveling Anti-Lock Brake System(SLABS) Electronic Control Unit (ECU) and speed sensors. The ABS modulator is a 4 channel unit that controls the supply of hydraulic pressure to the brakes in response to inputs from the SLABS ECU. The modulator is attached by three mounting bushes to a bracket on the lefthand inner front wing and connected to the primary and secondary hydraulic circuits downstream of master cylinder assembly. Three electrical connectors link the ABS modulator to the vehicle wiring.
Freelander
The AB...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Land Rover -> Component Locations -> Discovery
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
Refer to Fig. ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Land Rover -> Check Engine Lamp ->
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
The Check Engine/Service Engine Soon lamp should illuminate when the ignition switch is placed in the On position to indicate the lamp is operational. After the engine has been started, the warning lamp should go off. If warning lamp comes on while the engine is running, a fault in the fuel injection and or engine control system is present. After system diagnosis and repairs have been completed, use scan tool to clear control module memory. Follow scan tool manufacturers instructions. On models less OBD II, the PCM m...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Radiator, Replace
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
- Remove battery cover.
- Remove upper fan cowl.
- Attach holding tool No. LRT-12-093, or equivalent, to viscous cooling fan, then remove fan attaching bolt and the fan.
- Drain cooling system.
- Remove lower fan cowl attaching screws, then the fan cowl.
- Disconnect lower radiator hose from thermostat housing.
- Disconnect top hose and bleed hose from radiator.
- Remove front grill as follows:
- Remove turn signal lamps.
- Remove headlamp trim finishers.
- Remove grill attaching screws and fasteners, ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Land Rover Discovery AUTOMOBILES
Serpentine Drive Belt, Replace -> Installation -> Removal
Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS
Removal
- Remove upper fan cowl.
- Relieve drive belt tension by turning belt tensioner clockwise.
- Remove belt from alternator pulley, then release tensioner pulley.
- Remove drive belt. If reusing belt, mark direction of rotation on belt.
Installation
- Clean drive belt pu...
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WIRING DIAGRAMS FOR 2003 Land Rover Discovery AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Land Rover Discovery cars and light trucks sold in the U.S.
 2003 Land Rover Discovery 4.6 V8 GAS Wiring DiagramComponents on diagram: |
 2003 Land Rover Discovery 4.6 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Land Rover Discovery AUTOMOBILES
OEM TSB listings for most 2003 Land Rover Discovery cars and light trucks sold in the U.S. from 1985+.
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Document: WINDSHIELD WIPER NOISE, JUDDER OR STREAKING - CLEANING PROCEDURE Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS Symptoms: |
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Document: SHUTTLE VALVE SWITCH RELATED ABS/TC/HDC WARNING LAMP ILLUMINATION TROUBLESHOOTING - REVISED Vehicle: 2003 Land Rover Discovery 4.6 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Land Rover Discovery AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Land Rover Discovery cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 Land Rover Discovery cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 Land Rover Discovery cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 Land Rover Discovery cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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