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2003 Mitsubishi Eclipse CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Mitsubishi 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 Mitsubishi Eclipse car and truck repair procedures including Mitsubishi 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 Mitsubishi Eclipse 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 Mitsubishi 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 Mitsubishi Eclipse 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 Mitsubishi Eclipse AUTOMOBILES

Mitsubishi -> Manual Temperature Control Diagnosis & Testing -> A/C Component Diagnosis & Testing -> A/C Control Unit -> A/C Switch -> Air Inlet Mode Selector -> Air Mix -> Air Outlet Changeover Control Micro Switch -> Air Outlet Mode -> Air Thermo Sensor -> Blower Motor -> Blower Motor Resistor -> Blower Switch -> Clutch Relay & Condenser Fan Relay -> Condenser Fan Motor -> Damper Motors -> Damper Relays -> Diamante -> Dual Pressure Switch -> Eclipse & Eclipse Spyder -> Fan Switch -> Galant -> Galant & Outlander -> Heater Relay -> Heater Switch -> Inside/Outside Air -> Inside/Outside Air Changeover -> Inside/Outside Changeover Switch -> Lancer -> Montero -> Montero & Montero Sport -> Montero Sport -> Multiport Fuel Injection (MFI) Relay & Throttle Actuator Control Motor Relay -> Outlander -> Photo Sensor -> Power Relay -> Rear Heater -> Receiver/Drier -> Refrigerant Temperature Sensor -> Sight Glass Refrigerant Level
Vehicle: 2003 Mitsubishi Eclipse 3.0 V6 GAS

A/C Control Unit

Refer to "A/C Terminal Voltage Inspection."

Multiport Fuel Injection (MFI) Relay & Throttle Actuator Control Motor Relay

  • Disconnect relay connector, install suitable ohmmeter and 12 volt battery supply in configuration, Fig. . There should be continuity between terminal No. 1 and terminal No. 4, if no continuity exists, replace relay.
  • With no battery voltage supplied, connect ohmmeter between terminal No. 2 and terminal No. 3, Fig. . There should be no continuity, if continuity exists, replace relay.

...

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BRAKE SERVICE PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Mitsubushi -> Disc Brakes -> Eclipse & Galant -> Adjustments -> Brake Pad Service -> Brake System Bleed -> Caliper Service -> Front -> Overhaul & Inspection -> Parking Brake -> Rear -> Replacement -> Rotor, Replace -> Tightening Specifications
Vehicle: 2003 Mitsubishi Eclipse GTS 3.0 V6 GAS

Brake System Bleed

The hydraulic brake system must be bled if air has entered the system. This condition may be caused by low fluid level, a hydraulic fluid leak, the opening of a hydraulic line or replacement of a hydraulic system component. Symptoms include a loss of basic brake operation and/or a low or spongy brake pedal.

On models equipped with ABS, use a suitable filter when adding fluid to reservoir tank.

  • Ensure master cylinder reservoir is full. Add suitable brake fluid as needed, and securely reinstall the master cylinder cap.
  • Raise and support vehicle.
  • Position a drain pan...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Mitsubishi -> Fuel Filter Replacement -> 1998-06 Eclipse w/Gasoline Engine -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2003 Mitsubishi Eclipse Spyder 2.4 L4 GAS

Fuel System Pressure Relief

  • Remove the lefthand instrument panel side cover.
  • Disconnect the fuel pump relay.
  • Start the engine and let run until is stalls.
  • Place the ignition switch in Off position.
  • Connect fuel pump relay.
  • Install the lefthand instrument panel side cover.

Removal & Installation

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 mixtur...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

CV AXLE SHAFT, Replace -> Front
Vehicle: 2003 Mitsubishi Eclipse GTS 3.0 V6 GAS

Front

Do not strike ABS rotors or outer race of driveshaft against other parts when removing or installing driveshaft. Use care not to strike pole piece at tip of front wheel speed sensor with tools when servicing vehicle.

  • Raise and support vehicle and support it with safety stands in proper locations.
  • Remove wheel nuts and front wheels.
  • On models equipped with ABS, disconnect wiring connection.
  • Remove brake hose clip.
  • Remove wheel hub cotter pin, nut, and washer. Do not apply pressure to wheel bearing from vehicle weight to avoid possible damage ...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Alternator, Replace
Vehicle: 2003 Mitsubishi Eclipse GTS 3.0 V6 GAS

  • Disconnect battery ground cable.
  • Remove undercover.
  • Remove engine mount bracket.
  • Remove altern...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Cabin Air Filter Service -> Mitsubishi -> 1999-2005 Galant & 2000-05 Eclipse
Vehicle: 2003 Mitsubishi Eclipse 3.0 V6 GAS

Under normal operating conditions the cabin air filter should be replaced every 12 months or 7,500 miles. In dusty areas change the cabin air filter more often.

  • Remove the glove compartment.
  • Through the glove compartment opening, remove the cabin air filter cover.
  • Pull ...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Mitsubishi -> Traction Control System (TCS) Warning Lamp -> Except 2006-09 Raider
Vehicle: 2003 Mitsubishi Eclipse 2.4 L4 GAS

The TCS warning lamp is used to warn of a system fault. It will be lit during engine start-up, but should go out when the self-diagnostic system determines that the system is functioning properly. The lamp will flash when the TSC is activated...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Mitsubishi Eclipse 2.4 L4 GAS

Inlet

  • Disconnect battery ground cable.
  • Drain cooling system into a suitable container by loosening drain plug of radiator.
  • Reposition hose clamp at heater core.
  • Remove hose from heater core.
  • Reposition hose clamp at thermostat case.
  • Remove hose from thermostat case.
  • Remove hose from vehicle.
  • Reverse procedure to...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Mitsubishi Eclipse AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Mitsubishi Eclipse Spyder GTS 3.0 V6 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 Mitsubishi Eclipse AUTOMOBILES

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

Floor And Roof Diagram for 2003 Mitsubishi Eclipse  2.4 L4 GASFloor And Roof Diagram for 2003 Mitsubishi Eclipse 2.4 L4 GAS

Components on diagram:
  • Splice S-118
  • Splice S-093
  • Splice S-094
  • Splice S-095
  • Luggage Compartment Diagram for 2003 Mitsubishi Eclipse Spyder GTS 3.0 V6 GASLuggage Compartment Diagram for 2003 Mitsubishi Eclipse Spyder GTS 3.0 V6 GAS

    Components on diagram:
  • Luggage Compartment Light
  • Capacitor
  • Liftgate Latch Switch
  • Backup Light
  • Rear Wiper Motor
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mitsubishi Eclipse PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Mitsubishi Eclipse AUTOMOBILES

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

    2003 Mitsubishi Eclipse GTS 3.0 V6 GAS Wiring Diagram2003 Mitsubishi Eclipse GTS 3.0 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Throttle Position Sensor
  • Power Steering Pressure Switch
  • Knock Sensor
  • Distributor
  • 2003 Mitsubishi Eclipse  3.0 V6 GAS Wiring Diagram2003 Mitsubishi Eclipse 3.0 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Clock Spring
  • Microcomputer
  • Connector Lock Switch
  • Passenger's Side Air Bag
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mitsubishi Eclipse WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2003 Mitsubishi Eclipse AUTOMOBILES

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

    Document: DIAGNOSING FUEL TRIM CODES: P0171 - "BANK 1 LEAN" & P0174 - "BANK 2 LEAN"
    Vehicle: 2003 Mitsubishi Eclipse 2.4 L4 GAS

    Auto Systems:
  • Fuel Sys, Driveability, Filters (Air & Fuel)
  • Document: TPMS LAMP ILLUMINATED IN COLD WEATHER
    Vehicle: 2003 Mitsubishi Eclipse 2.4 L4 GAS

    Auto Systems:
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 2003 Mitsubishi Eclipse TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Mitsubishi Eclipse AUTOMOBILES

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

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    Click here to view more details about 2005 Mitsubishi Eclipse Headlight, Driver Side2005 Mitsubishi Eclipse Headlight, Driver Side, Bulbs included; Composite type; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $99.00

    Click here to view more details about 2000 Mitsubishi Eclipse Wiper Blade, Front, Driver Side2000 Mitsubishi Eclipse Wiper Blade, Front, Driver Side, 24 in. length, Includes universal plastic adapters and easy to follow installation instructions; This new generation flat blade provides improved wiping capabilities in rain and freezing weather, long lasting durability, an easy to service design using a rubber insert that requires no special tools or high cost items to replace, and a clean appearance from inside the vehicle with the wiper profile neatly conforming to the base of the windshield; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $5.12

    Click here to view more details about 2005 Mitsubishi Eclipse 17" x 6.5" Alloy Wheel2005 Mitsubishi Eclipse 17" x 6.5" Alloy Wheel, Alloy Wheel; 17 X 6.5; 46MM Offset; 15 Spokes; 5 Lug; 4.5 Inch BP; Aftermarket Chrome, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $251.50

    Click here to view more details2005 Mitsubishi Eclipse V6, 3.0 L, 181 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

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    Click here to view more details1998 Mitsubishi Eclipse Used Quarter Window Regulator, Rear, Driver Side, L, L., Very Good.

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    Click here to view more details2012 Mitsubishi Eclipse Used Parking Lamp, Passenger Side, FOG/DRIVING; (BUMPER), Good.

    Source: Used Auto Parts Store

    $161.00
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