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2003 Honda Civic CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Honda REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
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- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Honda Civic car and truck
repair procedures including Honda 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 Honda Civic automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 2003 Honda Civic EX 1.7 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Honda -> Disc Brakes -> Caliper Service -> Assemble -> Disassemble -> Front -> Overhaul -> Rear -> Replace
Vehicle: 2003 Honda Civic HX 1.7 L4 GAS
Front
Replace
- Raise and support front of vehicle, then remove tire and wheel assemblies.
- Remove banjo bolt and disconnect brake hose.
- Remove mounting bolts and caliper.
- Reverse procedure to install.
Overhaul
Disassemble
- Remove pad spring.
- Place suitable wooden block or shop rag in caliper opposite piston, then carefully remove piston from caliper by applying air pressure through brake line hole with OSHA-approved 30 psi nozzle.
- Remove boot clip, piston boot and piston seal.
Assemble
- Clean piston and caliper bore with brake fluid, then inspect for wear or damage.
- Apply brake cylinder grease t...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Honda -> Fuel Filter Replacement -> 2001-06 Civic -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2003 Honda Civic GX 1.7 L4 CNG
Fuel System Pressure Relief
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
- Turn the ignition switch OFF.
- Remove the glove box, then the PGM-FI main relay, Figs. through .
- Start the engine and let it idle until it stalls. If any DTCs are stored ignore them.
- Turn the ignition switch OFF.
- Remove the fuel fill cap to release fuel tank pressure.
- Disconnect the bat...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
CV AXLE SHAFT, Replace -> Front
Vehicle: 2003 Honda Civic HX 1.7 L4 GAS
Front
- Loosen wheel nuts slightly.
- Raise and support vehicle and support it with safety stands in proper locations.
- Remove wheel nuts and front wheels.
- Lift up locking tab on spindle nut then remove nut.
- Drain transmission fluid and reinstall drain plug using a new washer.
- Hold stabilizer ball joint pin with suitable tool and remove flange nut.
- Remove lockpin from lower arm ball joint castle nut and remove nut.
- Pull knuckle outwa...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Starter, Replace
Vehicle: 2003 Honda Civic LX 1.7 L4 GAS
- Disconnect positive battery cable.
- Remove resonator.
- Disconnect starter cable from solenoid B+ terminal and black/white wire from S-terminal.
- Remove...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Cabin Air Filter Service -> Honda -> 2001-05 Civic & 2004-05 Civic Hybrid
Vehicle: 2003 Honda Civic DX 1.7 L4 GAS
The cabin air filter should be replaced every 30,000 miles or 24 months. If the vehicle is operated primarily in urban areas with high concentrations of soot and diesel powered vehicles, replace the filter every 15,000 miles. The filter should be replaced more often if air flow is less than normal.
- Open the glove compartment.
- While holding the glove compartment, remove the glove compartment stops located at each side by pulling outward on the stop tabs, Fig. .
- Allow the glove compartment to hang downward.
- Remove the cabin air filter cover from the blower unit by...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Honda -> Check Engine Lamp -> 2003-09 Civic & Civic Hybrid
Vehicle: 2003 Honda Civic EX 1.7 L4 GAS
The Check Engine/PGM-FI Warning Indicator Lamp should be illuminated for a few seconds after the ignition switch is placed in the on position as a bulb check and then the lamp should go off. If the lamp remains lit, a problem in the Programmed Fuel Injection (PGM-FI) system is indicated and a diagnostic trouble code is stored in the Electronic Control Unit (ECU) memory. After diagnosis and repair, clear the ECU memory of diagnostic trouble codes.
After diagnosis and repair, clear the ECU memory of diagnostic trouble codes. With ignition...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Honda Civic GX 1.7 L4 CNG
Lower
- Drain engine coolant into a suitable container.
- Reposition hose clamp and remove hose from thermostat side of water passage.
- Reposition hose clamp and remove hose from radiator outlet.
- Remove hose from vehicle.
- Reve...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Honda Civic AUTOMOBILES
Serpentine Drive Belt, Replace -> Alternator and Air Conditioning -> Power Steering
Vehicle: 2003 Honda Civic DX 1.7 L4 GAS
Alternator and Air Conditioning
- Disconnect battery ground cable from battery.
- Loosen upper mounting bolt and lower alternator mounting nut.
- Loosen lower mounting bolt and lower alternator mounting nut.
- Remove A/C compressor drive and alternator drive belt.
- Clean and inspect belt surfaces of all pulleys.
- Reverse procedure to install, noting the following:
- Torque upper alternator mounting bolt to 33 ft. lbs.
- Torque l...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Honda Civic AUTOMOBILES
Component location diagrams for most 2003 Honda Civic cars and light trucks sold in the U.S. from 1990+.
 Front Of Roof Diagram for 2003 Honda Civic EX 1.7 L4 GASComponents on diagram: |
 Middle Of Engine Diagram for 2003 Honda Civic GX 1.7 L4 CNGComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Honda Civic AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Honda Civic cars and light trucks sold in the U.S.
 2003 Honda Civic GX 1.7 L4 CNG Wiring DiagramComponents on diagram: |
 2003 Honda Civic EX 1.7 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Honda Civic AUTOMOBILES
OEM TSB listings for most 2003 Honda Civic cars and light trucks sold in the U.S. from 1985+.
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Document: ATEQ VT55 TPMS Update Information Vehicle: 2003 Honda Civic DX 1.7 L4 GAS Auto Systems: |
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Document: ED-18 Battery Analyzer Update Information Vehicle: 2003 Honda Civic DX 1.7 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Honda Civic AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Honda Civic 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 Honda Civic 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 Honda Civic 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 Honda Civic 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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