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2003 Lincoln LS CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lincoln 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
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Component Replacement & Adjustment -> LS & Thunderbird -> Thermostat, Replace -> 3.0L Engine -> 3.9L Engine
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
3.0L Engine
- Drain coolant into suitable container.
- Disconnect oil cooler coolant hoses.
- Remove air cleaner outlet tube.
- Disconnect hoses, Fig. .
- Remove housing, thermostat and seal.
- Reverse procedure to install.
3.9L Engine
- Drain coolant into suitable contai...
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BRAKE SERVICE PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Anti-lock Brakes -> LS & Thunderbird -> Troubleshooting -> Inspection & Verification -> Symptom Chart
Vehicle: 2003 Lincoln LS 3.0 V6 GAS
Inspection & Verification
- Verify ABS concern by applying brakes under varying conditions.
- Verify stoplamps are working properly.
- Verify "PRNDL" indicator on instrument cluster is working properly.
- Visually inspect the following for mechanical or electrical damage:
- Underhood auxiliary junction box fuses.
- Central junction box fuses.
- Anti-lock brake sensor indicators and sensors.
- Base brake concerns.
- Tire pressure.
- Hydraulic control unit.
- Tire size, or mismatched tires.
- ABS/stability assist control module.
- Brake booster vacuum hose.
- Ford specified steering and suspension components.
- Steering wheel ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Ford Motor Co. Passenger Cars -> Fuel Filter Replacement -> 2000-06 LS & 2002-05 Thunderbird -> Installation -> Removal
Vehicle: 2003 Lincoln LS 3.0 V6 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
When installing the fuel filter, ensure the flow arrow is facing in the proper direction.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven 10 miles or more while it relearns ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Lincoln LS 3.0 V6 GAS
Halfshaft assemblies are not serviceable. If wear or damage is present, replace entire halfshaft assembly. When servicing halfshafts, ensure excessive angle is not applied to CV joints and that joints are not pulled apart or separated.
The halfshafts on models equipped with 3.9L engine are larger in diameter and are not interchangeable with halfshafts on models equipped with a 3.0L engine.
- Raise and support vehicle.
- Remove rear tires.
- Remove and discard axle wheel hub nut.
- Remove rear brake rotors.
- Remove ABS sensors.
- Remove lower knuckle mounting bolt.
- Press CV joint from hub us...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
- Disconnect battery ground cable.
- Remove engine appearance cover.
- Disconnect IAT sensor, breather hose and idle air control valve inlet tube.
- Remove air intake tube support nut and washer.
- Loosen tube clamps and remove tube.
- Remove accessory drive belt.
- Raise and support vehicle, then remove front lower splash shield.
- Support ...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Cabin Air Filter Service -> Ford Motor Co. -> 2002-06 LS
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.
- Open the hood.
- Remove the pin type retainers attaching the passenger side cowl cover to the cowl.
- Detach the rubber hinge cover from rear outer corner of the passenger side cowl cover.
- Pull up on passenger side cowl cover to release the lower retaining clips, then remove the cover.
- Release the right...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Ford Motor Co. Cars -> Traction Control System Warning Lamp ->
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warni...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Radiator, Replace
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
- Ensure engine is cold.
- Wrap suitable shop towel around pressure relief cap, then remove cap. Ensure coolant does not come into contact with accessory drive belt.
- Drain radiator coolant into suitable container.
- On models equipped with oil cooler, disconnect coolant hoses at oil cooler.
- On all models, remove upper radiator sight shield.
- Remove air cleaner outlet tube.
- Remove radiator support brackets, then the upper radiator hose.
- Remove receiver drier mounting bolt and position receiver drier aside.
- Remove electric water pump b...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Lincoln LS AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Lincoln LS 3.9 V8 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Lincoln LS AUTOMOBILES
Component location diagrams for most 2003 Lincoln LS cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2003 Lincoln LS AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Lincoln LS cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Lincoln LS AUTOMOBILES
OEM TSB listings for most 2003 Lincoln LS cars and light trucks sold in the U.S. from 1985+.
Document: ACCESSORY DRIVE BELT SNAP NOISE IN FREEZING TEMPERATURES Vehicle: 2003 Lincoln LS 3.9 V8 GAS Symptoms: |
Document: VACUUM LEAKAGE NOISE AND MIL ON WITH LEAN CODES Vehicle: 2003 Lincoln LS 3.0 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Lincoln LS AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Lincoln LS 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 Lincoln LS 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 Lincoln LS 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 Lincoln LS 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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