The 2003 Acura TL Factory Service Manual provides comprehensive technical information for the maintenance, repair, and service of the 2003 Acura TL luxury sedan. This manual covers the 3.2L V6 engine, 5-speed automatic transmission, chassis systems, electrical systems, body components, and all factory specifications. It includes detailed procedures, wiring diagrams, troubleshooting guides, and factory-recommended service intervals for professional technicians and DIY enthusiasts.
Vehicle identification, model variations, manual organization, and safety precautions.
| Item | Specification |
|---|---|
| Model Year | 2003 |
| Vehicle Type | Mid-size luxury sedan |
| Manufacturer | Acura (Honda Motor Co.) |
| Production Plant | Marysville, Ohio, USA |
| Manual Revision | Factory Original |
| Coverage | Complete vehicle systems |
3.2L J32A2 V6 engine specifications and service procedures.
WARNING! Always disconnect battery before engine service. Use proper lifting equipment.
Cooling system components and maintenance procedures.
CAUTION! Never open radiator when hot. Use Honda Type 2 coolant only.
5-speed automatic transmission with SportShift manual mode.
Specifications: BAYA-type transmission, ATF-Z1 fluid, 7.9 quart capacity.
Service procedures: Fluid change (30,000 miles), filter replacement, shift solenoid testing, valve body service, torque converter replacement, transmission control module programming.
Double wishbone front suspension, multi-link rear suspension, power steering.
Tip: Always replace suspension components in pairs when worn.
4-wheel disc brakes with ABS and electronic brake distribution.
WARNING! Always bleed brakes properly after service. Test brakes at low speed first.
Body structure, interior components, and trim service.
Complete wiring diagrams and electrical component service.
CAUTION! Disconnect battery before electrical work. Use circuit testers, not test lights.
Factory recommended maintenance intervals and service procedures.
| Service Interval | Required Maintenance |
|---|---|
| 7,500 miles | Oil change, tire rotation, inspection |
| 15,000 miles | Oil change, air filter, cabin filter |
| 30,000 miles | Transmission fluid, fuel filter |
| 60,000 miles | Spark plugs, brake fluid |
| 105,000 miles | Timing belt, water pump, coolant |
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Battery, starter, fuel pump | Check battery voltage, fuel pressure, spark |
| Transmission slips | Low fluid, worn clutches | Check fluid level and condition, pressure test |
| ABS light on | Wheel sensor, modulator | Scan for codes, test wheel sensors |
| Electrical issues | Battery, alternator, grounds | Load test battery, check charging system |
| Overheating | Coolant, thermostat, fans | Pressure test system, check fan operation |
Technical Support: Acura dealer service department or certified technician recommended for complex repairs.
Parts Information: Genuine Acura parts recommended for optimal performance and reliability.