1988 Acura Legend Service Manual

The 1988 Acura Legend Service Manual provides comprehensive technical information for maintenance, repair, and servicing of the 1988 Acura Legend luxury sedan. This manual covers the 2.7L V6 engine, automatic and manual transmission systems, chassis components, electrical systems, and all major vehicle subsystems. Below are key sections for specifications, maintenance procedures, troubleshooting, and technical data.

1. Vehicle Specifications 2. Maintenance Schedule 3. Engine Systems 4. Transmission Systems 5. Chassis & Suspension 6. Brake Systems 7. Electrical Systems 8. Fuel System 9. Cooling System 10. Troubleshooting Guide 11. Technical Data

Vehicle Specifications

Key technical specifications for the 1988 Acura Legend including engine, transmission, and chassis details.

Specification	Details
Engine Type	2.7L V6 SOHC 24-valve
Horsepower	161 hp @ 5800 rpm
Torque	162 lb-ft @ 4500 rpm
Transmission	5-speed manual or 4-speed automatic
Fuel System	Multi-point fuel injection
Brake System	Front disc/Rear disc with ABS
Suspension	Independent double wishbone
Wheelbase	108.7 inches
Curb Weight	3,197 lbs (manual)
Fuel Capacity	18.5 gallons

Maintenance Schedule

Recommended maintenance intervals and service procedures.

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

WARNING! Always use genuine Acura parts for optimal performance and safety. Follow torque specifications precisely.

Engine Systems

Detailed service procedures for the 2.7L V6 engine and related components.

Valve Adjustment: Cold adjustment procedure with specifications
Timing Belt: Removal and installation with alignment marks
Ignition System: Spark plug gap and ignition timing procedures
Compression Test: Standard values and testing procedure
Oil System: Oil pump service and pressure specifications

CAUTION! Engine components operate at high temperatures. Allow engine to cool before servicing.

Transmission Systems

Manual Transmission: 5-speed gear ratios, shift linkage adjustment
Automatic Transmission: 4-speed electronic control, shift points
Fluid Specifications: Honda ATF-Z1 for automatic, 10W-30 for manual
Clutch System: Hydraulic clutch adjustment and bleeding procedure
Differential: Final drive ratio and service procedures

Chassis & Suspension

Service procedures for suspension components and steering system.

Front Suspension: Double wishbone design, ball joint replacement, strut service. Rear Suspension: Independent double wishbone, toe adjustment procedures. Steering: Power steering pump service, gearbox adjustment, alignment specifications.

Brake Systems

Front and rear disc brake service with ABS components.

Brake Pad Replacement: Front and rear pad specifications
Rotor Service: Minimum thickness and runout specifications
ABS System: Component testing and troubleshooting
Bleeding Procedure: Manual and pressure bleeding methods

Tip: Always replace brake components in axle sets for balanced braking performance.

Electrical Systems

Wiring diagrams, component locations, and electrical troubleshooting.

Battery: Specifications and testing procedures
Charging System: Alternator output and regulator testing
Starting System: Starter motor and solenoid service
Lighting: Headlight adjustment and bulb replacement
Instrument Cluster: Gauge testing and sensor calibration

WARNING! Disconnect battery before performing electrical work to prevent shorts and injuries.

Fuel System

Multi-point fuel injection system service and maintenance.

Fuel Pump: Pressure specifications and replacement procedure. Fuel Injectors: Flow testing and cleaning procedures. Throttle Body: Cleaning and idle speed adjustment. Fuel Filter: Replacement interval and location.

Cooling System

Radiator, thermostat, and cooling system service procedures.

Radiator: Flushing procedure and capacity specifications. Thermostat: Opening temperature and replacement. Water Pump: Removal and installation with timing belt service. Hoses: Inspection and replacement intervals.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel pump, ignition, battery	Check fuel pressure, spark, battery voltage
Poor acceleration	Fuel filter, air filter, sensors	Replace filters, test TPS and MAP sensors
Brake vibration	Warped rotors, worn pads	Resurface or replace rotors, install new pads
Electrical issues	Alternator, battery, grounds	Test charging system, clean battery terminals
Overheating	Thermostat, water pump, radiator	Test thermostat, check water pump, flush radiator

Diagnostic Codes: Use Honda diagnostic connector for retrieving trouble codes.

Service Support: Contact Acura technical support for complex issues.