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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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- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Acura Legend car and truck
repair procedures including Acura engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Acura Legend automobile. Try the Automotix DIY solution today!
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 LS 2.7 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
ACURA, POWER BRAKE UNITS -> DIAGNOSIS & TESTING -> CHECK VALVE TEST -> FUNCTION TEST -> LEAK TEST
Vehicle: 1990 Acura Legend 2.7 V6 GAS
On Models Equipped With Anti-Lock Brakes, Refer To "Anti-Lock Brakes System."
FUNCTION TEST
- With engine stopped, depress brake pedal several times, the depress pedal hard and hold for 15 seconds. If pedal sinks, master cylinder, brake line or brake caliper is faulty.
- With brake pedal depressed, start engine. If pedal sinks slightly, vacuum booster is operating. If pedal height does not vary, booster or check valve is faulty.
LEAK TEST
- With engine running, depress brake pedal and hold, then stop engine. If pe...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Acura Legend AUTOMOBILES
Acura -> Fuel Filter Scheduled Maintenance -> 1987-96 Integra, Legend, MDX, RSX, TL & TSX, 2.2CL, 2.3CL, 2.5TL, 3.0CL, 3.2CL, 3.2TL & 3.5RL -> Normal Service -> Severe Service
Vehicle: 1990 Acura Legend 2.7 V6 GAS
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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 -> Side Air Bag off Lamp ->
Vehicle: 1990 Acura Legend L 2.7 V6 GAS
This indicator should light for a few seconds when the ignition switch placed in the on position and then go Off. The lamp is used a an alert that the passenger side air bag has been automatically shut off. The passenger side air bag w...
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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 L 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+.
 I/P Connector & Ground Locations Diagram for 1990 Acura Legend 2.7 V6 GASComponents on diagram: |
 Cowl Panel Connector & Ground Locations Diagram for 1990 Acura Legend LS 2.7 V6 GASComponents 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 L 2.7 V6 GAS Wiring DiagramComponents on diagram: |
 1990 Acura Legend L 2.7 V6 GAS Wiring DiagramComponents 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+.
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Document: Battery Testing and Replacement Vehicle: 1990 Acura Legend 2.7 V6 GAS Auto Systems: |
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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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