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2003 Ford Focus CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Ford 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!

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    Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Ford Focus car and truck repair procedures including Ford 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 Ford Focus automobile. Try the Automotix DIY solution today!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Ford mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2003 Ford Focus vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

    A/C & HEATER SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Component Replacement & Adjustment -> Focus -> Compressor, Replace
    Vehicle: 2003 Ford Focus LX 2.3 L4 GAS

    • Recover refrigerant as outlined under .
    • Raise and support vehicle.
    • Remove cover and loosen drive belt.
    • Remove drive belt.
    • Disconnect refrigerant line from compressor. Cap or plug lines and openings.
    • Remove compr...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Hydraulic Brake Systems -> Component Replacement -> 1999 -> 2000-03 -> Continental, Crown Victoria, Grand Marquis, Marauder, Mustang & Town Car -> Contour, Cougar & Mystique -> Escort, Tracer & ZX2 -> Focus -> Installation -> LS & Thunderbird -> Master Cylinder -> Removal -> Sable & Taurus -> Wheel Cylinders
    Vehicle: 2003 Ford Focus ZTW 2.0 L4 GAS

    Master Cylinder

    Continental, Crown Victoria, Grand Marquis, Marauder, Mustang & Town Car
    • Depress brake pedal several times to exhaust all vacuum in system.
    • Disconnect brake lines from master cylinder, then all required electrical connectors.
    • Disconnect hydraulic control unit supply hose at master cylinder. Secure hose in a position to prevent brake fluid loss.
    • Remove two bolts which attach proportioning valve bracket to brake master cylinder. Secure proportioning valve and tubes in a position to prevent damage or loss of brake fluid.
    • Remove nuts retaining master cylinder to brak...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Ford Motor Co. Passenger Cars -> Fuel Pressure Relief -> Focus, Fusion & Milan
    Vehicle: 2003 Ford Focus SE 2.0 L4 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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    CV AXLE SHAFT, Replace
    Vehicle: 2003 Ford Focus ZTW 2.3 L4 GAS

    • Loosen strut lock nut 5 rotations. Use Allen key to prevent piston from rotating.
    • Raise and support vehicle, then remove wheel and tire assembly.
    • Disconnect ball joint from knuckle.
    • Remove hub nut.
    • Using puller No. 204-069 and stud extension tool No. 204-085, or equivalents, Fig. , separate halfshaft from wheel hub.
    • On right side, remove intermediate shaft bearing mounting nuts.
    • On either ...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Starter, Replace
    Vehicle: 2003 Ford Focus SE 2.0 L4 GAS

    • Disconnect battery ground cable.
    • Remove air cleaner outlet tube.
    • Remove starter motor mounting bolts.
    • Raise and support vehicle.
    • Disconnect starter motor electrical connector.
    • Remove starter motor from veh...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Cabin Air Filter Service -> Ford Motor Co. -> 2000-07 Focus
    Vehicle: 2003 Ford Focus SE 2.3 L4 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.

    • Position the windshield wipers in the vertical position.
    • Open the hood.
    • Remove the caps from the righthand side air cowl grille retaining screws.
    • Remove the righthand side air cowl grille retaining screws, then the grille.
    • Open the service flap, then remove the cabin air filter ...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Ford Motor Co. Cars -> Air Bag Warning Lamp ->
    Vehicle: 2003 Ford Focus ZTW 2.3 L4 GAS

    This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the Air B...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Coolant Hose, Replace -> Lower -> Upper
    Vehicle: 2003 Ford Focus SVT 2.0 L4 GAS

    Lower

    • Drain cooling system into a suitable container.
    • Reposition hose clamp from water pump.
    • Remove radiator outlet hose from water pump.
    • Reposition hose clamp from radiator.
    • Remove radiator outlet hose from radiator and from vehicle.
    • Reverse procedure to in...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Ford Focus AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 2003 Ford Focus ZTS 2.0 L4 GAS

    • Raise and support vehicle.
    • Remove drive belt cover.
    • Loosen bolts on coola...

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 2003 Ford Focus AUTOMOBILES

    Component location diagrams for most 2003 Ford Focus cars and light trucks sold in the U.S. from 1990+.

    PZEV Rear View Components Diagram for 2003 Ford Focus ZX3 2.3 L4 GASPZEV Rear View Components Diagram for 2003 Ford Focus ZX3 2.3 L4 GAS

    Components on diagram:
  • Turbine Shaft Speed Sensor
  • Throttle Position Sensor
  • Starter Motor
  • Generator
  • Output Shaft Speed Sensor
  • Liftgate Component Locations Diagram for 2003 Ford Focus ZX3 2.3 L4 GASLiftgate Component Locations Diagram for 2003 Ford Focus ZX3 2.3 L4 GAS

    Components on diagram:
  • High Mount Stop Lamp
  • License Plate Lamp
  • Liftgate Latch
  • Window Wiper Motor
  • Ground 400
  • CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Ford Focus AUTOMOBILES

    OEM drawn wiring diagrams for most 2003 Ford Focus cars and light trucks sold in the U.S.

    2003 Ford Focus ZX3 2.3 L4 GAS Wiring Diagram2003 Ford Focus ZX3 2.3 L4 GAS Wiring Diagram

    Components on diagram:
  • Transmission Range Sensor
  • Battery
  • Starter Relay
  • Starter Motor
  • Powertrain Control Module
  • 2003 Ford Focus LX 2.3 L4 GAS Wiring Diagram2003 Ford Focus LX 2.3 L4 GAS Wiring Diagram

    Components on diagram:
  • Master Window Adjust Switch
  • Window Adjust Switch- Passenger Side
  • Power Window Motor- Left Front
  • Power Window Motor- Right Front
  • CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2003 Ford Focus AUTOMOBILES

    OEM TSB listings for most 2003 Ford Focus cars and light trucks sold in the U.S. from 1985+.

    Document: ENGINE VIBRATION AT IDLE - REVISED
    Vehicle: 2003 Ford Focus SE 2.0 L4 GAS

    Symptoms:
  • Vibration
  • Auto Systems:
  • Gasoline Engines
  • Document: CLUTCH PEDAL RETURN SPRING NOISE AND/OR FREE PLAY - REVISED
    Vehicle: 2003 Ford Focus SE 2.0 L4 GAS

    Symptoms:
  • Noise
  • Insufficient Performance
  • Auto Systems:
  • Manual Trans, Clutches, Linkage, MTX
  • CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Ford Focus AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Ford Focus 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 Ford Focus 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 Ford Focus 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 Ford Focus 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

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Focus SPECIFICATIONS DATA!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 2004 Ford Focus Side Marker, Front, Passenger Side2004 Ford Focus Side Marker, Front, Passenger Side, Bulbs included; DOT and SAE approved; A high quality, OE replacement side marker light assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $16.86

    Click here to view more details about 2000 Ford Focus Headlight, Driver Side2000 Ford Focus Headlight, Driver Side, Comes with bulbs and backed by 1-year, unlimited-mileage warranty.<p>Be safe! Replace your worn out or broken lights with these DOT and SAE Approved lighting products. They are made to stand rough road wear and the test of time!<br>.

    Source: Auto Body Parts Store

    $35.48

    Click here to view more details about 2011 Ford Focus Mirror Cover2011 Ford Focus Mirror Cover, Full Mirror Covers; 2 Piece Set, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $49.45

    Click here to view more details2002 Ford Focus LX L4, 2 L, 1989 CC, 122 CID Rebuilt Engine, SOHC, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,020.00

    Click here to view more details2009 Ford Focus Used Exhaust Manifold, (2.0L, DOHC), STD EMIS, FROM 9/03/08, Very Good.

    Source: Used Auto Parts Store

    $244.00

    Click here to view more details2000 Ford Focus Used Exhaust Manifold, (4-122, 2.0L), SOHC, Very Good.

    Source: Used Auto Parts Store

    $104.00
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