2003 Acura NSX Service Manual

The 2003 Acura NSX Service Manual provides comprehensive technical information for the maintenance, repair, and servicing of the Acura NSX sports car. This manual covers the 3.2L V6 VTEC engine, 6-speed manual transmission, chassis systems, electrical systems, body components, and all major service procedures. Below are key sections for specifications, maintenance schedules, troubleshooting, and repair procedures.

1. Vehicle Specifications 2. Maintenance Schedule 3. Engine Systems 4. Transmission & Drivetrain 5. Chassis & Suspension 6. Electrical Systems 7. Brake Systems 8. Body & Interior 9. Troubleshooting 10. Technical Service Bulletins 11. Wiring Diagrams

Vehicle Specifications

Key technical specifications for the 2003 Acura NSX including engine, transmission, dimensions, and performance data.

SpecificationDescription
Engine Type3.2L DOHC 24-valve V6 VTEC
Horsepower290 hp @ 7100 rpm
Torque224 lb-ft @ 5500 rpm
Transmission6-speed manual
DrivetrainRear-wheel drive
Curb Weight3,153 lbs
Fuel Capacity18.5 gallons
Wheelbase99.6 inches
Length174.2 inches
Width71.3 inches

Maintenance Schedule

Recommended service intervals and maintenance procedures for optimal performance and longevity.

  1. Oil Change: Every 7,500 miles or 12 months
  2. Spark Plugs: Replace every 30,000 miles
  3. Timing Belt: Replace every 90,000 miles or 7 years
  4. Brake Fluid: Replace every 3 years
  5. Coolant: Replace every 5 years or 60,000 miles

WARNING! Use only recommended fluids and genuine Acura parts for optimal performance and warranty compliance.

Engine Systems

Detailed service procedures for the 3.2L V6 VTEC engine and related systems.

  1. Engine Removal & Installation: Complete step-by-step procedure
  2. Valve Adjustment: Specifications and adjustment procedure
  3. VTEC System: Diagnosis and service procedures
  4. Fuel System: Fuel pump, injectors, and pressure testing
  5. Ignition System: Coils, spark plugs, and timing
  6. Cooling System: Radiator, thermostat, and water pump

CAUTION! Always disconnect battery before performing electrical work. Use proper lifting equipment for engine removal.

Transmission & Drivetrain

Chassis & Suspension

Front and rear suspension systems with aluminum construction and advanced geometry.

Front Suspension: Double wishbone with coil springs, stabilizer bar

Rear Suspension: Double wishbone with coil springs, stabilizer bar

Alignment Specifications: Camber, caster, and toe settings for optimal handling. Wheel Bearing Service: Removal and installation procedures. Suspension Component Replacement: Control arms, bushings, and ball joints.

Electrical Systems

Complete electrical system diagnostics and repair procedures.

  1. Battery: Location, specifications, and testing procedures
  2. Charging System: Alternator output testing and replacement
  3. Starting System: Starter motor diagnosis and service
  4. Lighting Systems: Headlights, taillights, and interior lighting
  5. Instrument Cluster: Gauge testing and replacement

Tip: Always use factory scan tool for proper diagnosis of electronic systems.

Brake Systems

Four-wheel disc brakes with ABS and advanced braking systems.

  1. Brake Pad Replacement: Front and rear procedures
  2. Rotor Service: Inspection and replacement specifications
  3. ABS System: Diagnosis and component testing
  4. Brake Fluid Bleeding: Proper procedure for system service
  5. Parking Brake: Adjustment and cable replacement

WARNING! Always replace brake components in axle sets. Test brake system thoroughly after service.

Body & Interior

Aluminum body structure and interior component service procedures.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startBattery, starter, fuel systemCheck battery voltage, fuel pressure, spark
Poor accelerationFuel filter, air filter, sensorsReplace filters, check MAF sensor
Transmission noiseLow fluid, worn bearingsCheck fluid level, inspect for wear
Brake vibrationWarped rotorsResurface or replace rotors
Electrical issuesGround connections, fusesCheck grounds, test fuses and relays

Diagnostic Codes: Use factory scan tool to retrieve and clear DTCs

Technical Service Bulletins

Factory-issued updates and service procedures for known issues.

CAUTION! Always check for latest TSBs before beginning major repairs.

Wiring Diagrams

Complete electrical schematics for all vehicle systems including engine management, lighting, and accessories.

Copyright © 2003 American Honda Motor Co., Inc. All rights reserved. For technical support, contact Acura Client Relations at 1-800-382-2238 or visit www.acura.com.

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