Positioning:
Essential resource for 1985 Pontiac Firebird owners and independent repair shops
Advantage:
Vehicle-specific factory data, superior to generic repair guides
Key Benefit:
Enables DIY repairs, reduces reliance on costly dealership services
Content Type:
Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications
Primary Coverage:
All models and all repairs A-Z
Diagnostic Coverage:
Full diagnostic procedures
Maintenance Coverage:
Comprehensive scheduled maintenance
Repair Coverage:
Detailed step-by-step repair instructions
Estimated Page Count:
Likely over 1000 pages (typical for factory service manuals of this era)
Type:
Factory Service Manual / Repair Manual
Digital Requirements:
Adobe PDF Reader, Winzip (free)
Digital Compatibility:
Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac
Engine Systems:
Engine Mechanical, Fuel Service, Emission Control, Intake/Exhaust/Cooling, Lube, Ignition, Starting/Charging
Drivetrain Systems:
Automatic Transmission, Clutch, Manual Transmission, Transfer/Propeller Shaft, Drive Shaft, Differential, Axle
Suspension Steering Brakes:
Suspension, Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering
Electrical Coverage:
Electrical, Wiring Schematics, Multiplex/CAN Communication
Body Interior Exterior Coverage:
Engine Hood/Door, Exterior & Interior, Instrument Panel, Seat, Windshield/Glass Mirror
Comfort Convenience Coverage:
Air Conditioning, Supplemental Restraint System (Airbag if applicable for model year), Seat Belt, Cruise Control, Wiper & Washer, Door Lock, Horn
Specialty Systems Coverage:
Engine Immobilizer, Meter Audio/Visual
Diagnostic Procedures:
Troubleshooting, fault diagnosis, component testing
Maintenance Procedures:
Fluid changes, filter replacements, tune-up procedures, lubrication
Repair Procedures:
Engine overhaul, transmission rebuild, brake caliper replacement, suspension component replacement, electrical component repair
Adjustment Procedures:
Valve adjustments, carburetor adjustments (if applicable), alignment specifications
Depth:
Factory Technician Level - complete diagnostic and repair information
Engine Options:
2.8L V6 (LG7), 5.0L V8 (LB9 Tuned Port Injection), 5.0L V8 (LG8 Carbureted), 5.7L V8 (L98 Cross-Fire Injection - Trans Am)
Hp Torque 2.8L V6:
Approx. 135 hp @ 4800 rpm, 165 lb-ft @ 3200 rpm
Hp Torque 5.0L Lb9:
Approx. 215 hp @ 4800 rpm, 275 lb-ft @ 3200 rpm
Hp Torque 5.0L Lg8:
Approx. 165 hp @ 4000 rpm, 245 lb-ft @ 2400 rpm
Hp Torque 5.7L L98:
Approx. 215 hp @ 4000 rpm, 310 lb-ft @ 2400 rpm
Fuel Delivery:
Carbureted (Rochester E4ME Quadrajet on 5.0L LG8) or Electronic Fuel Injection (TPI or Cross-Fire Injection)
Ignition Type:
Electronic Spark Control (ESC) with knock sensor, Distributorless Ignition System (DIS) on some models
Cooling Capacity:
Approx. 12-13 quarts
Crash Test Information:
NHTSA data available for 1985 models
Braking System:
Front disc brakes, rear drum brakes (optional rear disc brakes on performance models)
Steering System:
Recirculating ball steering with optional power assist
Restraint System:
Seat belts (lap and shoulder belts)
Lighting System:
Halogen headlamps
Oil Change Interval:
Typically every 3,000-5,000 miles or 6 months, depending on driving conditions (refer to specific manual recommendations)
Tune Up Interval:
Spark plugs, distributor cap, rotor, and wires typically every 30,000-60,000 miles
Engine Oil Type:
Refer to manual; typically SAE 5W-30 or 10W-30 for V6 and 5.0L V8, SAE 10W-30 or 10W-40 for 5.7L V8. Check API service classification (e.g., SF or SG).
Transmission Fluid Type Auto:
Dexron-III (or equivalent)
Transmission Fluid Type Manual:
GL-4 Gear Oil (specific viscosity to be confirmed in manual)
Coolant Type:
Ethylene Glycol based coolant (e.g., Prestone)
Common Problems:
Fuel injector issues (TPI), carburetor problems (LG8), intake manifold gasket leaks, cooling system leaks, electrical connector corrosion, interior component wear (e.g., seat foam, dashboard cracks)
Schedule Detail:
Includes checks and replacements for belts, hoses, filters, fluids, spark plugs, ignition components at various mileage intervals.
Pontiac Legacy:
Pontiac known for performance-oriented, sporty vehicles
Third Gen Firebird Era:
Third generation (1982-1992) marked a significant styling and engineering update, moving towards aerodynamic design and improved performance.
Manufacturing Plant:
General Motors' Van Nuys, California assembly plant
Production Run For Third Gen:
1982-1992
