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2003 Ford Mustang 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 Mustang 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 Mustang 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 Mustang 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 Mustang AUTOMOBILES

    Electric Cooling Fans -> System Diagnosis & Testing -> Aviator -> Crown Victoria, Grand Marquis, Marauder & Town Car -> Escape -> Escort ZX2 -> Focus -> Freestar & Monterey -> LS & Thunderbird -> Mustang -> Ranger -> Sable & Taurus -> Windstar
    Vehicle: 2003 Ford Mustang 3.8 V6 GAS

    Perform visual inspection before performing diagnosis and testing procedures. Repair as required before continuing with diagnosis.

    • Inspect coolant level and condition.
    • Inspect condition of radiator, thermostat and hoses.
    • Inspect for fan blade interference.
    • Inspect for proper mounting of fan motor.
    • Inspect for proper fan blade attachment to motor.
    • Inspect for blown fuses.
    • Inspect for damage to the cooling system hoses and gaskets.
    • Inspect for restricted airflow through condenser and radiator.
    • Ensure cooling...

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

    BRAKE SERVICE PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Anti-lock Brakes -> Mustang -> Description -> ABS Hydraulic Control Unit & Anti-Lock Brake Control Module -> Anti-Lock Brake Sensor -> Brake Master Cylinder -> Operation -> Power Brake Booster -> System Components
    Vehicle: 2003 Ford Mustang Mach 1 4.6 V8 GAS

    System Components

    Power Brake Booster

    The diaphragm-type power brake booster is a self-contained unit, mounted on the firewall. The booster uses engine intake manifold vacuum and atmospheric pressure for its power. Other than the power brake booster check valve, the booster is serviced only as an assembly. The booster must be replaced if it becomes damaged or inoperative.

    Brake Master Cylinder

    The brake master cylinder consists of a fluid reservoir, reservoir control valve and a fluid level indicator. The fluid level indicator is located inside the brake master cylinder reservoir and re...

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

    FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Ford Motor Co. Passenger Cars -> Fuel Shutoff Switch Location -> 1994-04 Mustang
    Vehicle: 2003 Ford Mustang Cobra 4.6 V8 GAS

    The inertia switch is locat...

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

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

    DRIVESHAFT, Replace
    Vehicle: 2003 Ford Mustang 3.8 V6 GAS

    • Raise and support vehicle.
    • Remove exhaust hangers from rubber mounts.
    • Remove two mounting nuts on lefthand side exhaust flange.
    • Lower the muffler pipe to clear flange, then move muffler forward to disconnect third exhaust hanger.
    • Mark driveshaft companion flange to pinion flange for installation align...

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

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Alternator, Replace
    Vehicle: 2003 Ford Mustang GT 4.6 V8 GAS

    • Disconnect battery ground cable.
    • Remove serpentine drive belt from alternator pulley. Leave belt in place to ease installation.
    • Remove alternator mounting bolts and alternator upper bracket, then disconnect alternator electrical connector by pressing tab. Do not pull on tab.
    • Disconnect alter...

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

    MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Ford Motor Co. Cars -> Check Engine Lamp/Malfunction Indicator Lamp (MIL)/Service Engine Soon Lamp -> 1998-2006 Models -> Keep Alive Memory (KAM) Reset & PCM Reset Less Electronic Tester -> PCM Reset Using Generic Scan Tool
    Vehicle: 2003 Ford Mustang 3.8 V6 GAS

    This lamp should light when the ignition is turned On. After engine starts, the lamp should go off, unless a fault condition is detected by the EEC-V system. If the lamp remains On or starts to blink, a diagnostic trouble code is stored in the PCM. Following diagnosis and repair, the Check Engine/MIL lamp will automatically reset when stored diagnostic trouble codes are cleared from PCM memory. The PCM reset procedure allows the scan tool to command the PCM to clear all diagnostic trouble codes.

    A temporary fault such as running out of fuel, poor quality or water in fuel or loos...

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

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Radiator, Replace
    Vehicle: 2003 Ford Mustang Mach 1 4.6 V8 GAS

    • Drain coolant from radiator and degas bottle into suitable container.
    • Disconnect cooling fan motor electrical connector and separate fan harness from shroud.
    • Remove fan shroud left and righthand mounting bolts.
    • Remove cooling fan, motor and shroud as an assembly.
    • Remove radiator sight shield.
    • Disco...

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

    SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 2003 Ford Mustang GT 4.6 V8 GAS

    • Insert a suitable square drive tool into square hole in tensioner arm, then rotate tensioner...

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

    COMPONENT LOCATION DIAGRAMS FOR 2003 Ford Mustang AUTOMOBILES

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

    Full Body, Convertible Diagram for 2003 Ford Mustang  3.8 V6 GASFull Body, Convertible Diagram for 2003 Ford Mustang 3.8 V6 GAS

    Components on diagram:
  • Rear Window Defrost Grid
  • Subwoofer Amplifier
  • Luggage Compartment Lid Release Solenoid
  • High Mounted Stoplamp
  • Power Window Motor
  • Window Component Locations Diagram for 2003 Ford Mustang GT 4.6 V8 GASWindow Component Locations Diagram for 2003 Ford Mustang GT 4.6 V8 GAS

    Components on diagram:
  • Window Regulator Motor
  • Convertible Quarter Glass Window Regulator
  • Convertible Quarter Window Glass
  • Convertible Quarter Window Regulator Motor
  • CLICK HERE TO GET FULL ACCESS TO 2003 Ford Mustang PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Ford Mustang AUTOMOBILES

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

    2003 Ford Mustang GT 4.6 V8 GAS Wiring Diagram2003 Ford Mustang GT 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • PCM Power Relay
  • Powertrain Control Module
  • Crankshaft Position Sensor
  • Constant Control Relay Module (CCRM)
  • 2003 Ford Mustang Cobra 4.6 V8 GAS Wiring Diagram2003 Ford Mustang Cobra 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • High Mounted Stoplamp
  • CLICK HERE TO GET FULL ACCESS TO 2003 Ford Mustang WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2003 Ford Mustang AUTOMOBILES

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

    Document: RECALL - CERTAIN 1992-2003 MODEL YEAR CARS AND TRUCKS - FUSED JUMPER HARNESS REPLACEMENT FOR VEHICLES SERVICED WITH AN INCOMPATIBLE FUSED JUMPER HARNESS
    Vehicle: 2003 Ford Mustang 3.8 V6 GAS

    Auto Systems:
  • Chassis Electrical, Wiring, Fuses & Breakers, Wipers, Motors
  • Document: RECALL - 1992-2004 MULTIPLE VEHICLE LINES - SPEED CONTROL SYSTEM MODIFICATION
    Vehicle: 2003 Ford Mustang 3.8 V6 GAS

    CLICK HERE TO GET FULL ACCESS TO 2003 Ford Mustang TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Ford Mustang AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Ford Mustang 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 Mustang 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 Mustang 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 Mustang 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 Mustang SPECIFICATIONS DATA!

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

    Click here to view more details about 2000 Ford Mustang Headlight, Passenger Side2000 Ford Mustang Headlight, Passenger Side, Bulbs included; Composite and combination type; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $56.62

    Click here to view more details2001 Ford Mustang Oil Pressure Switch, 1/4 in. x 18 NPT thread size; Stud type; 1-prong male terminal; A high quality, direct fit OE replacement oil pressure switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $9.29

    Click here to view more details2010 Ford Mustang Radiator, Radiator; 4.0LTR Or 4.6LTR Engines, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $84.45

    Click here to view more details about 1983 Ford Mustang V8, 5 L, 302 CID Rebuilt Engine1983 Ford Mustang V8, 5 L, 302 CID Rebuilt Engine, Crank #2MAE or R1J, Smog not HO., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,297.00

    Click here to view more details2005 Ford Mustang Used Exhaust Manifold, 4.0L (SOHC), L., Very Good.

    Source: Used Auto Parts Store

    $152.00

    Click here to view more details2005 Ford Mustang Used A/C Compressor, 4.0, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $118.00
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