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1990 Subaru XT & XT6 Service Repair Manual 90

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$16.99
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Basic Information Identification Make: Subaru Model: XT6 Year: 1990 Codes Chassis Codes: AS/AT (XT), AY (XT6) Engine Codes: EA82 (XT), ER27 (XT6) Introduction Market Position Positioning: The Subaru XT and...
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斯库: 586359
标签: Subaru XT
1990 Subaru XT & XT6 Service Repair Manual 90
Basic Information
Identification
Make: Subaru
Model: XT6
Year: 1990
Codes
Chassis Codes: AS/AT (XT), AY (XT6)
Engine Codes: EA82 (XT), ER27 (XT6)
Introduction
Market Position
Positioning: The Subaru XT and XT6 represented Subaru's foray into the sporty, front-wheel-drive biased (with optional AWD) coupe market, offering unique styling and engineering for their time.
Competitive Analysis
Competitors: Competed against cars like the Honda Prelude, Toyota Celica, Mitsubishi Eclipse, and to some extent, the Nissan 240SX and Ford Probe.
Key Features
Design: Striking, aerodynamic, low-slung design with a 'digital' dashboard and aircraft-inspired cockpit.
Performance Variant: The XT6 featured a potent 2.7L six-cylinder Boxer engine, a significant upgrade from the XT's four-cylinder, and offered a more sophisticated AWD system.
Manual Value
Value Proposition: Essential resource for owners and independent mechanics maintaining or repairing these unique and increasingly rare vehicles, providing factory-accurate procedures and specifications.
Manual Details
Coverage Areas
Primary Coverage: Service and Repair
Secondary Coverage: Maintenance, Diagnostics, Troubleshooting
Page Count
Approximate Pages: Varies by specific publication, typically 500+
Manual Type
Type: Factory Service Manual (FSM)
Language
Language: English
Format
Format: Print
Manual Coverage
Systems Covered
Engine: 1.8L EA82 (4-cylinder), 2.7L ER27 (6-cylinder Boxer) - including fuel injection, ignition, cooling, lubrication, exhaust
Transmission: 5-speed manual, 4-speed automatic (with Sportshift on XT6)
Drivetrain: All-Wheel Drive (AWD) system, front/rear differentials, drive shafts, CV joints
Brakes: Front disc, rear drum (XT), front/rear disc (XT6), hydraulic system, parking brake
Suspension: Front MacPherson struts, rear semi-trailing arms, springs, shock absorbers, sway bars
Steering: Power rack and pinion
Electrical: Battery, charging system, ignition, lighting, instrumentation, power windows/locks/mirrors, HVAC controls, stereo system
Body: Exterior trim, interior components, glass, seals, body panel alignment, rust prevention
HVAC: Air conditioning system, heater core, blower motor, controls
Diagnostic Troubleshooting: Flowcharts, symptom-based diagnosis, specific component testing
Procedures Included
Routine Maintenance: Oil changes, filter replacements, fluid checks, tire rotation, spark plug replacement
Engine Repair: Head gasket replacement, timing belt/chain service, piston/ring replacement, valve adjustments
Transmission Service: Fluid changes, clutch replacement, seal replacements, automatic transmission overhaul
Brake Service: Pad/shoe replacement, rotor/drum resurfacing/replacement, caliper/wheel cylinder overhaul, bleeding procedure
Suspension And Steering Repair: Strut/shock replacement, ball joint replacement, tie rod end replacement, power steering pump/rack service
Electrical System Repair: Alternator/starter testing and replacement, wiring harness repair, sensor diagnosis and replacement
Body Work: Door panel removal, seat removal, trim piece replacement, minor body panel adjustments
HVAC Service: Refrigerant charging, leak detection, blower motor replacement, heater core replacement
Technical Depth
Depth: Comprehensive: covers basic maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures and specifications.
Manual Specifications
File Format
Format: Likely a scanned or digitally reproduced original print manual.
Print Quality
Quality: Variable, depends on the source scan. Typically clear diagrams and text.
Binding Type
Binding: N/A (for digital format)
Paper Type
Paper: N/A (for digital format)
Engine Specifications
Primary Engine
Xt Engine: 1.8L (1781cc) EA82 horizontally opposed 4-cylinder
Xt6 Engine: 2.7L (2673cc) ER27 horizontally opposed 6-cylinder
Performance
Xt Horsepower: Approx. 97-100 hp (depending on configuration)
Xt Torque: Approx. 100-105 lb-ft
Xt6 Horsepower: Approx. 150 hp
Xt6 Torque: Approx. 150 lb-ft
Fuel System
Xt Fuel System: Electronic Fuel Injection (EFI)
Xt6 Fuel System: Electronic Fuel Injection (EFI)
Engine Management
Ignition System: Distributorless Ignition System (DIS) on some models, or Distributor with electronic control.
Engine Monitoring: ECU (Engine Control Unit)
Transmission
Standard
Xt Transmission: 5-speed Manual
Xt6 Transmission: 5-speed Manual
Optional
Xt Transmission Optional: 4-speed Automatic
Xt6 Transmission Optional: 4-speed Automatic with 'Sportshift' manual override mode
Features
Drivetrain Type: Front-wheel drive biased, with Subaru's full-time All-Wheel Drive (AWD) system as standard or optional depending on trim and region.
AWD System Details: Center viscous coupling differential (for full-time AWD). XT6 AWD also featured a higher-torque capacity.
Fluid Specs
Manual Transmission Fluid: GL-5 75W-90 (Subaru recommended)
Automatic Transmission Fluid: Dexron II (Subaru recommended)
Dimensions
Exterior
Length: Approx. 177 inches
Width: Approx. 67.9 inches
Height: Approx. 50.6 inches
Wheelbase: Approx. 97.0 inches
Weights
Curb Weight: Approx. 2700-3000 lbs (varies by model and options)
Gross Vehicle Weight Rating: Typically around 3700-3900 lbs
Safety Features
Ratings
NHTSA Ratings: No specific NHTSA crash test data readily available for this model year and region, common for vehicles of this era.
Active Features
ABS: Optional on some XT models, standard on many XT6 models.
Passive Features
Airbags: Driver airbag standard on most models.
Seat Belts: 3-point front and rear seat belts.
Technology Features
Infotainment
Audio System: Factory AM/FM/Cassette stereo system. Some models may have optional premium sound systems.
Dashboard Display: Unique 'digital' dashboard with LCD or VFD displays for speedometer, tachometer, fuel, and temperature gauges.
Driver Assistance
Cruise Control: Electronically controlled cruise control available on most models.
Connectivity
Availability: No modern connectivity features such as Bluetooth or USB. Primarily focused on core vehicle function.
Maintenance
Service Intervals
Oil Change: Every 3,000-5,000 miles or 6 months, whichever comes first. Use synthetic oil for extended intervals if preferred and supported.
Air Filter Replacement: Every 15,000-30,000 miles or annually.
Spark Plug Replacement: Every 30,000-60,000 miles depending on plug type (copper vs. platinum).
Timing Belt: Crucial: 60,000-100,000 miles (EA82) or 100,000 miles (ER27). Non-interference engine for EA82, interference for ER27, making timely replacement vital.
Fluid Specifications
Engine Oil: API SG, SAE 10W-30 or 10W-40 (check manual for specific viscosity recommendations based on temperature).
Coolant: Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Subaru Blue Coolant or equivalent.
Brake Fluid: DOT 3 or DOT 4.
Known Issues
Engine: Head gasket leaks (especially on EA82), oil leaks from Boxer engine seals, timing belt wear/failure.
Electrical: Corrosion in wiring harnesses, intermittent power to accessories, issues with the digital dashboard components.
Suspension: Worn ball joints, tie rod ends, and strut mounts due to age and mileage.
Body: Rust, particularly around wheel arches, rocker panels, and rear subframe mounts.
Vehicle History
Brand Heritage
Subaru Focus: Subaru is known for its horizontally opposed ('Boxer') engines and All-Wheel Drive systems.
Model Evolution
Introduction: The Subaru XT was introduced in 1985, with the XT6 following in 1987. The 1990 model year represents a later iteration of this generation.
Design Inspiration: The XT's wedge-shaped profile and aircraft-inspired interior were distinct design elements of the 1980s.
Production
Production Period: Subaru XT: 1985-1991; Subaru XT6: 1987-1992. The 1990 model falls within these ranges.
Manufacturing Location: Japan
Awards & Recognition
Recognitions
Design Awards: The Subaru XT's design was critically acclaimed for its futuristic and aerodynamic qualities, winning design awards like the 'Car of the Year' award from MotorTrend in 1987 for the XT6.
Ratings
Performance Reviews: Praised for its comfortable ride, AWD capability (especially in the XT6), and unique styling, though often criticized for underpowered base engines and interior ergonomics.
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