Target Audience:
DIY mechanics, professional technicians, classic car enthusiasts, owners seeking in-depth knowledge
Value Proposition:
Provides vehicle-specific, factory-level repair data, saving time and money compared to generic guides or dealership labor costs.
Digital Benefits:
Searchable, zoomable images, printable pages for workshop use, organized into a single, easy-to-use file.
Powertrain:
Engine (all variants), Control System, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging, Auto Transmission, Manual Transmission (if applicable), Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension
Chassis And Brakes:
Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering
Electrical And Accessories:
Air Condition, Suppl Restraint System (SRS), Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Windshield/Glass Mirror, Instrument Panel, Electrical, Multiplex/CAN Communication
Body And Interior:
Seat, Engine Hood/Door, Exterior & Interior
Maintenance:
Routine maintenance, fluid changes, filter replacements, tune-ups
Diagnostics And Troubleshooting:
Diagnostic procedures, symptom-based troubleshooting, electrical diagnosis
Repair And Rebuild:
Complete step-by-step repair instructions for all major systems, component removal/installation, rebuilding procedures
Specifications And Data:
Torque specifications, fluid capacities, tolerances, diagnostic data, wiring schematics
Depth:
Factory-level detailed repair information, equivalent to dealership technician manuals
Compatibility:
Windows Vista (32/64), XP, ME, 98, NT, 2000, and Mac OS
Requirements:
Adobe PDF Reader, Winzip (free online)
Printability:
Fully printable, allowing for enlarged copies of diagrams and illustrations
Binding:
Digital (PDF) - no physical binding
Paper Quality:
N/A (digital format)
Engine Code:
L05 (5.7L V8 LT1 - most common from 1994-1996), L03 (5.0L V8 TBI - 1991-1993)
Horsepower Range:
Approx. 170-260 hp (depending on year and specific engine)
Torque Range:
Approx. 250-320 lb-ft (depending on year and specific engine)
Fuel Delivery:
Throttle Body Injection (TBI) for 5.0L, Sequential Fuel Injection (SFI) for 5.7L LT1
Coolant Type:
Dex-Cool (Orange) or equivalent for later models, traditional green coolant for earlier models (refer to manual for specific year)
Oil Type:
Typically 5W-30 or 10W-30 (refer to manual for specific year and temperature range)
Ignition Type:
Distributor-based (early models), Distributorless Ignition System (DIS) for LT1 engines
Wheelbase:
Approx. 113.8 inches
Overall Length:
Approx. 214.7 inches
Overall Width:
Approx. 79.1 inches
Overall Height:
Approx. 54.7 inches
Curb Weight:
Approx. 4,200 - 4,600 lbs (depending on options)
Gross Vehicle Weight Rating Gvw:
Approx. 5,600 - 5,800 lbs
NHTSA Rollover Rating:
Not specifically rated by NHTSA for this era, but generally stable due to wide track and low center of gravity for a large sedan.
ABS:
Standard on most models (Anti-lock Braking System)
Airbags:
Driver and passenger airbags standard from 1994 onwards (Supplemental Restraint System - SRS).
Seat Belts:
Three-point front and rear seat belts, driver's side seatbelt pretensioner.
Audio System:
Factory AM/FM stereo with cassette player, optional CD player. Delco premium sound systems available.
Climate Control:
Manual or automatic climate control systems, including dual-zone climate control on some models.
Cruise Control:
Standard feature on most models.
Traction Control:
Optional on some models, especially with LT1 engine.
Multiplex Communication:
Early forms of multiplexed wiring for various control modules, as indicated by the manual's coverage.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil used. Manual will provide specific recommendations.
Transmission Fluid Service:
Recommended every 30,000-60,000 miles, or as per manual's severe service schedule. Includes filter replacement.
Coolant Flush Interval:
Initial flush at 5 years/100,000 miles, then every 2-5 years/30,000-50,000 miles depending on coolant type.
Power Steering Fluid:
Dexron-III (or equivalent)
Common Wear Items:
Suspension components (ball joints, control arm bushings), fuel pump, mass airflow sensor (MAF), EGR valve, interior climate control components (heater core, blend doors).
Lt1 Specific Issues:
Opti-Spark distributor/coil pack reliability, cooling system leaks (water pump, thermostat housing).
Body And Trim:
Potential for clear coat peeling on older paint, interior plastic wear, power window motor issues.
Buick Legacy:
Buick has a long history of producing large, comfortable sedans, often targeting a more mature demographic with an emphasis on luxury and smooth ride quality.
Roadmaster Lineage:
The Roadmaster nameplate has been used by Buick in various forms. The 1991-1996 generation represents a revival of the nameplate on the full-size B-Body platform, directly competing with Ford's Crown Victoria/Grand Marquis and Cadillac's Fleetwood.
Production Period:
1991-1996
Manufacturing Location:
Arlington, Texas, USA (GM's Arlington Assembly Plant)
Automotive Press:
The Roadmaster was generally praised for its comfortable ride, spacious interior, and powerful V8 engine options, often viewed as a competent American luxury car of its era.
Consumer Reports Perception:
Typically rated well for ride comfort and quietness, with average to below-average ratings for reliability in some powertrain/electrical areas compared to Japanese competitors of the time.
