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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!
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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 -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Fan Service
Vehicle: 2003 Ford Mustang 3.8 V6 GAS

Air Bag System Disarming & Arming

Refer to and for air bag system disarming and arming procedures.

Battery Ground Cable

Prior to service, disconnect battery ground cable and isolate as required.

Fan Service

Do not operate engine until fan has first been inspected for cracks and/or separations. If a fan blade...

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BRAKE SERVICE PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

Disc Brakes -> Front Disc Brakes -> Troubleshooting -> Abnormal Conditions -> Brake Booster Operation Test -> Brake Master Cylinder -> Brake Roughness -> Bypass Condition Inspection -> Lateral Runout -> Non-Pressure Leaks -> Normal Conditions -> Thickness Variation -> Wheel Bearing Looseness
Vehicle: 2003 Ford Mustang GT 4.6 V8 GAS

Brake Roughness

Thickness Variation

If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickness variation. Measure the disc at 12 points with a micrometer at a radius approximately one inch from edge of disc. If thickness measurements vary by more than .0005 inch, replace the disc.

Lateral Runout

Excessive lateral runout of braking disc may cause a "knocking back" of the pistons, possibly creating increased pedal travel and vibration when brakes are applied.

Wheel Bearing Looseness

Adjust the w...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

Ford Motor Co. Passenger Cars -> Fuel Pressure Relief -> Except Aspire, Festiva, Focus, Fusion, Milan, 2003-06 Crown Victoria, Grand Marquis, Sable, Taurus & Town Car, 1991-96 Escort, 1988-96 Tracer, 1991-94 Capri, 1989-91 Probe & 2005-06 Mustang
Vehicle: 2003 Ford Mustang 3.8 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...

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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...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

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

  • Disconnect battery ground cable.
  • Raise and support vehicle.
  • Remove solenoid protective cap and wiring nuts. Position wiring aside.
  • Remove starter motor mounting bolts, then starter motor from vehicle.
  • Reverse pr...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

Ford Motor Co. Cars -> Air Bag Warning Lamp ->
Vehicle: 2003 Ford Mustang Mach 1 4.6 V8 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...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Ford Mustang AUTOMOBILES

Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 2003 Ford Mustang 3.8 V6 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Remove intake manifold.
  • Reposition heater hose inlet clamp at heater core.
  • Remove heater inlet hose from heater core.
  • Reposition heater core inlet hose clamp at engine.
  • Remove hose from engine.
  • Remove hose from vehicle.
  • Reverse procedure to install.

Outlet

  • Drain cooling system into a suitable container.
  • Remove intake manifold.
  • Reposition heater hose outlet clamp at heater core.
  • Disconnect heater...

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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...

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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+.

Engine Components Diagram for 2003 Ford Mustang  3.8 V6 GASEngine Components Diagram for 2003 Ford Mustang 3.8 V6 GAS

Components on diagram:
  • Wheel Speed Sensor
  • Battery
  • Ignition Coil
  • Speed Control Servo
  • Low Pitch Horn
  • Exhaust System Diagram for 2003 Ford Mustang GT 4.6 V8 GASExhaust System Diagram for 2003 Ford Mustang GT 4.6 V8 GAS

    Components on diagram:
  • Dual Converter Assembly
  • 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  3.8 V6 GAS Wiring Diagram2003 Ford Mustang 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Starter Relay
  • Speed Control Servo
  • Windshield Washer Pump Motor
  • ABS Control Module
  • Daytime Running Lamp (DRL) Module
  • 2003 Ford Mustang Mach 1 4.6 V8 GAS Wiring Diagram2003 Ford Mustang Mach 1 4.6 V8 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Rear Window Defrost Relay
  • Starter Motor
  • Generator
  • Constant Control Relay Module (CCRM)
  • 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!

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    Click here to view more details about 1998 Ford Mustang Splash Shield, Front, Passenger Side1998 Ford Mustang Splash Shield, Front, Passenger Side, A high quality, OE replacement splash shield; Backed by 1-year, unlimited-mileage warranty..

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    $30.67

    Click here to view more details1998 Ford Mustang Tail Light, Driver Side.

    Source: Auto Body Parts Store

    $83.74

    Click here to view more details1998 Ford Mustang 15" Aftermarket Wheel Covers, Aftermarket Wheel Covers; 15 Inch; Silver Finish; ABS; 5 Star; Metal Clip Retention, , .

    Source: Wheels / Rims, Mirrors & Lights Store

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    Click here to view more details1968 Ford Mustang V8, 4.7 L, 289 CID Rebuilt Engine, 6 Bolt bellhousing, No Smog, Warranty: 3-Year/100,000 Mile, .

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    Click here to view more details2009 Ford Mustang Used Cooling Fan Assembly, Fan Assm, Very Good.

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    $161.00

    Click here to view more details2009 Ford Mustang Used Bumper Bar, Rear, 2DR, SIL, Very Good.

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    $169.00
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