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1990 Acura Legend CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Acura REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
A/C & Cooling System Maintenance -> Acura -> Legend, Vigor & 1990-95 Integra & NSX
Vehicle: 1990 Acura Legend 2.7 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
ACURA, ANTI-LOCK BRAKE SYSTEM -> TROUBLESHOOTING -> ALB CHECKER -> DIAGNOSTIC TESTS -> Function Test -> Temporary Driving Conditions -> Trouble Code 2 -> WARNING LAMP -> Warning Lamp Circuit -> WHEEL SENSOR SIGNAL CONFIRMATION
Vehicle: 1990 Acura Legend L 2.7 V6 GAS
Refer to Figs. through , for component location.
ALB CHECKER
Never drive vehicle while ALB checker is operating. A collision may result from a reduction or complete loss of braking ability.
The checker should be used through modes 0-6 on all models except 1991-92 Legend and 1992 Vigor, and modes 0-5 for 1991-92 Legend and 1992 Vigor, to confirm proper system operation under any of the following conditions:
- After replacing or bleeding system fluid, 0 mode is not required.
- After replacing any ALB system component.
- After any body or suspension repair that may cause malfunctions wi...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Acura -> Component Locations -> 1986-90 Legend
Vehicle: 1990 Acura Legend LS 2.7 V6 GAS
Refer to Fig...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
CV AXLE SHAFT, Replace -> Driveshaft -> Intermediate shaft
Vehicle: 1990 Acura Legend 2.7 V6 GAS
Driveshaft
- Raise and support front of vehicle.
- Remove front wheel, then drain transaxle fluid into a suitable container. If removing left driveshaft only, it is not necessary to drain transaxle.
- Raise spindle nut lock tab and remove nut.
- Remove damper fork bolt and pinch bolt, then damper fork.
- Remove steering knuckle to lower control arm castellated nut cotter pin and nut.
- Separate lower control arm from steering knuckle using a suitable puller.
- Pull steering knuckle outward and tap driveshaft outboard joint from steering knuckle.
- Pry driveshaft out with a screwdriver to force s...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Starter, Replace
Vehicle: 1990 Acura Legend LS 2.7 V6 GAS
- Disconnect battery ground cable at battery.
- Disconnect starter cable from B terminal on solenoid, then BLK/WHT wire from S terminal.
- Remov...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Acura -> Information System Display ->
Vehicle: 1990 Acura Legend L 2.7 V6 GAS
This system will indicate driver information and service interval reminder information. The system will normally indicate the clock display until the trip function or system check buttons are depressed. When the trip function button is depressed, the system will indicate fuel remaining, trip meter, present fuel consumption and average fuel consumption. When the system check button is depressed, the display will indicate next service interval, engine oil and filter service interval, oil level, coolant level and washer fluid level. A warning lamp on the instrument cluster will be illuminated whe...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 1990 Acura Legend 2.7 V6 GAS
Inlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at heater core.
- Remove hose from heater core.
- Reposition hose clamp at heater valve.
- Remove hose from heater valve.
- Remove hose from vehicle.
- Reverse procedure to install.
Outlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at h...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Serpentine Drive Belt, Replace -> Air Conditioning -> Alternator -> Power Steering
Vehicle: 1990 Acura Legend LS 2.7 V6 GAS
Alternator
- Disconnect battery ground cable from battery.
- Loosen alternator nut and through bolt.
- Loosen alternator adjusting bolt to relieve belt tension.
- Remove alternator drive belt.
- Clean and inspect belt surfaces of all pulleys.
- Reverse procedure to install, noting the following:
- Torque adjusting bolt to 84 in. lbs.
- Torque alternator through bolt to 33 ft. lbs.
- Torque alternator nut to 17 ft. lbs.
Air Conditioning
- Disconnect battery ground cable from battery.
- Loosen tensioner lock nut.
- Loosen compressor adjust...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Acura Legend AUTOMOBILES
Component location diagrams for most 1990 Acura Legend cars and light trucks sold in the U.S. from 1990+.
Resonator Control Solenoid Valve Location Diagram for 1990 Acura Legend L 2.7 V6 GAS Components on diagram: |
RH Side Of Vehicle Connector & Ground Locations Diagram for 1990 Acura Legend 2.7 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Acura Legend AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Acura Legend cars and light trucks sold in the U.S.
1990 Acura Legend LS 2.7 V6 GAS Wiring Diagram Components on diagram: |
1990 Acura Legend L 2.7 V6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Acura Legend AUTOMOBILES
OEM TSB listings for most 1990 Acura Legend cars and light trucks sold in the U.S. from 1985+.
Document: Battery Testing and Replacement Vehicle: 1990 Acura Legend 2.7 V6 GAS Auto Systems: |
Document: Battery Maintenance at Dealers Vehicle: 1990 Acura Legend 2.7 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Acura Legend AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Acura Legend 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 1990 Acura Legend 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 1990 Acura Legend 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 1990 Acura Legend 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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