Target Audience:
Buick Roadmaster Estate owners seeking comprehensive DIY repair and maintenance knowledge, as well as independent repair shops
Value Proposition:
Provides factory-specific, dealership-level technical information, offering a significant cost saving over professional repair for many tasks. Eliminates reliance on generic or incomplete aftermarket guides.
Data Accuracy:
Vehicle-specific, not generic; direct from manufacturer's internal documentation
Information Organization:
All-in-one PDF for easy navigation, printing of specific sections
Content Type:
Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications
Covered Models:
All 1994 Buick Roadmaster Estate models
Repair Scope:
A-Z, all repairs and maintenance
Estimated Page Count:
Extensive (typical for factory service manuals of this era, often exceeding 2000 pages)
Type:
Factory Service Manual / Repair Manual
Digital Format:
PDF Download
Powertrain:
Engine, Fuel System, Ignition, Starting, Charging, Emission Control, Cooling, Lube, Automatic Transmission, Driveshaft, Differential, Axles
Chassis:
Suspension, Steering (Column, Power Steering), Brakes (Control, Parking), Wheels, Tires
Electrical And Body:
Body Electrical, Multiplex/CAN Communication, HVAC (Air Conditioning), Supplemental Restraint System (Airbags), Seat Belts, Engine Immobilizer, Cruise Control, Wiper/Washer, Door Locks, Instruments, Audio/Visual, Horn, Glass/Mirrors, Interior Trim, Exterior Trim, Engine Hood/Doors
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, lubrication
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, component testing
Repair:
Step-by-step repair instructions for all major components and systems
Specifications:
Torque specifications, clearances, fluid capacities, component measurements, diagnostic parameters
Wiring:
Complete wiring schematics and diagrams
Depth:
Factory level diagnostic and repair procedures, suitable for professional technicians and advanced DIY enthusiasts
Compatibility:
Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible
Requirements:
Adobe PDF Reader, WinZip (or similar decompression utility)
Printability:
All pages printable, with ability to enlarge images
Digital Binding:
Single, organized PDF document
Digital Storage:
Saved on PC, digital format prevents wear and tear
Engine Type:
V8, OHV (Overhead Valve)
Engine Displacement:
5.7 Liters (350 cubic inches)
Engine Code:
L99 (for the shorter stroke 5.7L) or LT1 (for the 350ci LT1 engine, which became standard in later 1994 models and RWD chassis, including Roadmaster)
Fuel Delivery:
Multi-port Fuel Injection (MPFI)
Horsepower:
Approximately 260 hp (LT1) / 180 hp (L99)
Torque:
Approximately 330 lb-ft (LT1) / 270 lb-ft (L99)
Fuel Type:
Unleaded Gasoline
Fuel Pump Pressure:
Approximately 45-60 PSI (LT1)
Overall Length:
219.1 inches
Overall Width:
79.1 inches
Overall Height:
55.8 inches
Curb Weight:
Approximately 4,345 - 4,527 lbs
Gross Vehicle Weight Rating Gvwr:
Approximately 5,610 lbs
Cargo Volume:
Large wagon capacity, specific cubic footage varies based on configuration but designed for significant storage
NHTSA Front Impact:
Not directly comparable to modern standards; designed to 1990s safety regulations.
Airbags:
Driver and Passenger Frontal Airbags (Supplemental Restraint System - SRS)
Seatbelts:
Front 3-point height-adjustable, Rear 3-point belts
Child Safety:
Child seat anchors (LATCH system not standard in 1994)
ABS:
Anti-lock Braking System (ABS) standard on all wheels
Traction Control:
Not commonly equipped on this model, but check specific VIN.
Audio System:
Factory AM/FM stereo with cassette player, optional CD player. Speaker configurations varied, often including door and rear deck speakers.
Climate Control:
Manual or optional Automatic Climate Control (ACC) with electronic readouts and dual-zone capability.
Cruise Control:
Standard electronic cruise control
Power Features:
Power windows, power door locks, power mirrors, power seats (driver and passenger), power antenna.
Multiplex Communication:
The manual covers multiplexed electrical systems, which manage various body functions and communications between modules.
Oil Change Interval:
Every 3,000-5,000 miles or 3-6 months, depending on driving conditions (refer to manual for exact specification)
Transmission Fluid Change Interval:
Every 30,000-50,000 miles (refer to manual for exact specification and procedure, including filter replacement)
Coolant Flush Interval:
Every 30,000-50,000 miles or 2-4 years
Engine Oil Type:
API SG or SH, SAE 5W-30 (consult manual for specific temperature range recommendations)
Coolant Type:
GM specified Type II (Orange) or Type III (Blue) conventional coolant, 50/50 mix with distilled water
Power Steering Fluid Type:
GM Power Steering Fluid (Type A or Dexron-II/III compatible)
Common Problems:
Opti-spark ignition system (LT1 engines), rear main seal leaks, ABS sensor failures, cooling system component wear (water pump, radiator), interior trim degradation (dash cracks, headliner sagging)
Repair Considerations:
Due to age, expect wear and tear on rubber components (hoses, bushings), electrical connectors, and climate control systems.
Buick Legacy:
Buick is known for its comfortable, spacious, and premium American sedans and wagons, often marketed as a mid-luxury brand.
Roadmaster Lineage:
The Roadmaster nameplate has a long history with Buick, dating back to the pre-war era. The 1991-1996 generation was a revival of the name, utilizing GM's B-body platform, a rear-wheel-drive full-size car architecture.
1994 Updates:
The 1994 model year saw the introduction of the LT1 5.7L V8 as standard equipment, replacing the L99 in many configurations, offering significantly more power. Refinements to suspension and interior features were also common.
Manufacturing Location:
Arlington Assembly, Texas, USA
Production Years:
1991-1996 (B-body platform)
