1998 Acura TL 2.5 Repair Manual

The 1998 Acura TL 2.5 is a luxury sedan featuring a 2.5L V6 engine, 5-speed automatic transmission, front-wheel drive, and advanced electronic systems. This comprehensive repair manual covers maintenance procedures, troubleshooting, component replacement, and technical specifications for proper servicing and repair of all major systems including engine, transmission, brakes, suspension, electrical, and climate control.

Vehicle Specifications

Technical specifications for the 1998 Acura TL 2.5 luxury sedan.

Maintenance Schedule

Recommended maintenance intervals for optimal vehicle performance.

1. Oil and filter change: Every 7,500 miles or 12 months
2. Air filter replacement: Every 30,000 miles
3. Spark plugs: Replace every 105,000 miles
4. Timing belt: Replace every 105,000 miles
5. Brake fluid: Replace every 3 years
6. Transmission fluid: Replace every 30,000 miles
7. Coolant: Replace every 5 years or 60,000 miles

WARNING! Always use genuine Acura parts and fluids for optimal performance and warranty compliance.

Engine System

2.5L V6 engine maintenance and repair procedures.

1. Engine oil change: Use 5W-30 synthetic blend oil
2. Spark plug replacement: NGK PZFR5F-11 recommended
3. Timing belt replacement: Critical at 105,000 miles
4. Valve adjustment: Check every 30,000 miles
5. Fuel system service: Clean injectors every 30,000 miles
6. Cooling system: Check radiator and hoses regularly

CAUTION! Engine components operate at high temperatures; allow cooling before servicing.

Transmission

• Type: 5-speed automatic with SportShift
• Fluid Capacity: 3.1 quarts (drain and refill)
• Fluid Type: Honda/Acura ATF-Z1
• Filter Service: Replace with fluid change
• Shift Solenoids: Located in valve body
• Transmission Control Module: Under dashboard
• Shift Cable Adjustment: Critical for proper shifting

Brake System

4-wheel disc brakes with ABS maintenance procedures.

Front Brakes: 11.1-inch ventilated discs, dual-piston calipers. Rear Brakes: 10.2-inch solid discs, single-piston calipers.

Brake Pad Replacement: Minimum thickness 3mm. Rotor Specifications: Minimum thickness front 20mm, rear 8mm. ABS System: 4-channel with wheel speed sensors. Brake Fluid: DOT 3 or DOT 4 recommended.

Suspension & Steering

Front: Double-wishbone suspension. Rear: Multi-link suspension.

1. Strut replacement: Check for oil leaks and wear
2. Ball joints: Inspect for play every 15,000 miles
3. Tie rod ends: Replace if excessive play detected
4. Wheel alignment: Check after suspension work
5. Power steering: Use Honda Power Steering Fluid

Tip: Always perform wheel alignment after suspension component replacement.

Electrical System

12-volt electrical system with comprehensive electronics.

1. Battery: 12V 60Ah, located in trunk
2. Alternator: 90-amp output capacity
3. Starter: 1.4kW reduction gear type
4. Fuse boxes: Underhood and underdashboard
5. Relays: Various locations throughout vehicle
6. Lighting: Halogen headlights, LED tail lights
7. Audio System: Premium Bose sound system

WARNING! Disconnect battery before electrical work to prevent short circuits.

Climate Control

Automatic climate control system with dual-zone temperature.

Body & Interior

Body structure and interior component maintenance.

CAUTION! Use proper trim removal tools to avoid damage to interior components.

Diagnostic Codes

OBD-II diagnostic trouble codes and troubleshooting procedures.

Troubleshooting

Reset: Disconnect battery for 10 minutes to reset ECU.

Service: Contact Acura dealer or certified technician for complex repairs.