🏷️ Basic Information Identification Make: Pontiac Model: Grand Prix Year: 1999 Codes Chassis Code: W-body Generation Generation Code: 3rd Generation (1997-2003) 👋 Introduction Market Position Vehicle Segment: Full-size sedan, often marketed as a sporty personal luxury car Brand Perception: Pontiac aimed for a performance-oriented image, distinct from other GM brands Competitive Analysis Key Competitors: Ford Taurus, Chrysler Concorde, Toyota Avalon, Honda Accord (larger trims) Key Features Selling Points: Sporty styling, available supercharged engine, comfortable ride, spacious interior Manual Purpose Utility: Enhance owner enjoyment and understanding of vehicle operation, maintenance, and features 📋 Manual Details Coverage Areas Primary Coverage: 1999 Pontiac Grand Prix Page Count Estimated Pages: 150-200 Manual Type Type: Owner's Manual Language Language: English Format Format: Electronic (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine operation, cooling, fuel, ignition, exhaust, transmission operation Chassis: Steering, suspension, brakes, wheels, tires Electrical: Lighting, instruments, gauges, climate control, audio system, power accessories, battery, fuses Body: Doors, windows, seats, interior trim, exterior features Procedures Included Operation: Starting, driving, parking, use of convenience features, climate control operation Maintenance: Fluid level checks, tire pressure checks, bulb replacement, wiper blade replacement, basic cleaning Safety: Seat belt usage, airbag system explanation, child restraint system installation Troubleshooting: Instrument panel warning lights, basic diagnostics for common issues Technical Depth Depth: Owner-level operation and basic maintenance 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable (OCR quality dependent) Print Quality Resolution: Varies based on original scan/digital conversion, typically sufficient for readability Binding Type Binding: N/A (Digital File) Paper Type Paper: N/A (Digital File) ⚙️ Engine Specifications Primary Engine Engine Code: 3.8L V6 (L36) Engine Description: Naturally Aspirated 90-degree V6 OHV (Overhead Valve) with 12 Valves Fuel System: Sequential Port Fuel Injection (SFI) Performance Horsepower L36: 200 hp @ 5,200 rpm Torque L36: 225 lb-ft @ 3,200 rpm Optional Engine Engine Code: 3.8L V6 Supercharged (L67) Engine Description: Supercharged 90-degree V6 OHV with 12 Valves Horsepower L67: 240 hp @ 5,200 rpm Torque L67: 280 lb-ft @ 3,600 rpm Fuel Requirements L36 Octane: 87 Octane (Regular Unleaded) L67 Octane: 91 Octane (Premium Unleaded Recommended) 🔧 Transmission Standard Transmission Type: 4-speed Automatic (4T65-E) Optional Transmission Type: 4-speed Automatic (4T65-E HD - Heavy Duty, for supercharged models) Features Shift Modes: Driver Shift Control (selectable 1st, 2nd, Drive) Fluid Specifications Transmission Fluid: Dexron III (or equivalent) 📐 Dimensions Exterior Length: 199.7 inches Width: 71.5 inches Height: 56.5 inches Wheelbase: 110.5 inches Interior Passenger Volume: Approx. 103 cubic feet Cargo Trunk Volume: Approx. 16.3 cubic feet Weights Curb Weight L36: Approx. 3,450 - 3,550 lbs Curb Weight L67: Approx. 3,600 - 3,700 lbs 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 4 Stars (1999) NHTSA Front Impact Passenger: 4 Stars (1999) NHTSA Side Impact Front Driver: 3 Stars (1999) NHTSA Side Impact Front Passenger: 4 Stars (1999) Active Features ABS: Standard (4-wheel Anti-lock Braking System) Passive Features Airbags: Driver and front passenger airbags Seatbelts: Front 3-point height-adjustable with pretensioners, rear 3-point belts Child Restraints: LATCH (Lower Anchors and Tethers for Children) system provisions 💡 Technology Features Infotainment Audio System Options: AM/FM stereo with cassette, CD player (optional), and various speaker configurations (e.g., 6-speaker premium audio). Driver Assistance Traction Control: Available on some models, especially those with the supercharged engine. Connectivity Phone Integration: No integrated Bluetooth or smartphone connectivity; typically required aftermarket solutions. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles or 6-12 months, depending on oil type and driving conditions (refer to manual for specific recommendation). Tire Rotation Interval: Every 6,000-8,000 miles Coolant Flush Interval: Every 30,000-60,000 miles or 2-4 years (depending on coolant type) Spark Plug Replacement: Approx. 100,000 miles for platinum/iridium plugs (check manual for specific type) Fluid Specifications Engine Oil Type: SAE 5W-30 (API Certified) Engine Oil Capacity L36: Approx. 4.5 quarts (with filter) Engine Oil Capacity L67: Approx. 4.5 quarts (with filter) Coolant Type: GM P/N 1052520 (Orange) or equivalent Dex-Cool compatible coolant Known Issues Intake Manifold Gasket Leaks: Common on earlier 3800 V6 engines, can cause coolant or oil leaks. Transmission Hard Shifting: Can sometimes be related to transmission fluid condition or solenoid issues. Window Regulator Failure: Power window regulators can be a point of failure. Supercharger Belt Wear: Supercharged models require attention to the supercharger drive belt. 📚 Vehicle History Brand Heritage Pontiac Legacy: Pontiac was GM's performance-oriented division, known for models like the Firebird and GTO. Model Evolution Grand Prix Lineage: The Grand Prix has a long history, evolving from personal luxury coupes to sedans with a focus on performance and sportiness. Third Gen Debut: The third generation (1997-2003) introduced a sleeker, more aerodynamic design and shared the W-body platform with other GM sedans. Production Manufacturing Location: General Motors Fairfax Assembly Plant, Kansas City, Kansas, USA Production Years Model Production Years: 1978-2008 (continuous lineage, though generations vary significantly) 🏆 Awards & Recognition Recognitions Ward Auto...
Seat belt usage, airbag system explanation, child restraint system installation
Troubleshooting:
Instrument panel warning lights, basic diagnostics for common issues
Technical Depth
Depth:
Owner-level operation and basic maintenance
📊 Manual Specifications
File Format
File Type:
PDF
Searchability:
Likely text-searchable (OCR quality dependent)
Print Quality
Resolution:
Varies based on original scan/digital conversion, typically sufficient for readability
Binding Type
Binding:
N/A (Digital File)
Paper Type
Paper:
N/A (Digital File)
⚙️ Engine Specifications
Primary Engine
Engine Code:
3.8L V6 (L36)
Engine Description:
Naturally Aspirated 90-degree V6 OHV (Overhead Valve) with 12 Valves
Fuel System:
Sequential Port Fuel Injection (SFI)
Performance
Horsepower L36:
200 hp @ 5,200 rpm
Torque L36:
225 lb-ft @ 3,200 rpm
Optional Engine
Engine Code:
3.8L V6 Supercharged (L67)
Engine Description:
Supercharged 90-degree V6 OHV with 12 Valves
Horsepower L67:
240 hp @ 5,200 rpm
Torque L67:
280 lb-ft @ 3,600 rpm
Fuel Requirements
L36 Octane:
87 Octane (Regular Unleaded)
L67 Octane:
91 Octane (Premium Unleaded Recommended)
🔧 Transmission
Standard
Transmission Type:
4-speed Automatic (4T65-E)
Optional
Transmission Type:
4-speed Automatic (4T65-E HD - Heavy Duty, for supercharged models)
Features
Shift Modes:
Driver Shift Control (selectable 1st, 2nd, Drive)
Fluid Specifications
Transmission Fluid:
Dexron III (or equivalent)
📐 Dimensions
Exterior
Length:
199.7 inches
Width:
71.5 inches
Height:
56.5 inches
Wheelbase:
110.5 inches
Interior
Passenger Volume:
Approx. 103 cubic feet
Cargo
Trunk Volume:
Approx. 16.3 cubic feet
Weights
Curb Weight L36:
Approx. 3,450 - 3,550 lbs
Curb Weight L67:
Approx. 3,600 - 3,700 lbs
🛡️ Safety Features
Ratings
NHTSA Front Impact Driver:
4 Stars (1999)
NHTSA Front Impact Passenger:
4 Stars (1999)
NHTSA Side Impact Front Driver:
3 Stars (1999)
NHTSA Side Impact Front Passenger:
4 Stars (1999)
Active Features
ABS:
Standard (4-wheel Anti-lock Braking System)
Passive Features
Airbags:
Driver and front passenger airbags
Seatbelts:
Front 3-point height-adjustable with pretensioners, rear 3-point belts
Child Restraints:
LATCH (Lower Anchors and Tethers for Children) system provisions
💡 Technology Features
Infotainment
Audio System Options:
AM/FM stereo with cassette, CD player (optional), and various speaker configurations (e.g., 6-speaker premium audio).
Driver Assistance
Traction Control:
Available on some models, especially those with the supercharged engine.
Connectivity
Phone Integration:
No integrated Bluetooth or smartphone connectivity; typically required aftermarket solutions.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,000-7,500 miles or 6-12 months, depending on oil type and driving conditions (refer to manual for specific recommendation).
Tire Rotation Interval:
Every 6,000-8,000 miles
Coolant Flush Interval:
Every 30,000-60,000 miles or 2-4 years (depending on coolant type)
Spark Plug Replacement:
Approx. 100,000 miles for platinum/iridium plugs (check manual for specific type)
Fluid Specifications
Engine Oil Type:
SAE 5W-30 (API Certified)
Engine Oil Capacity L36:
Approx. 4.5 quarts (with filter)
Engine Oil Capacity L67:
Approx. 4.5 quarts (with filter)
Coolant Type:
GM P/N 1052520 (Orange) or equivalent Dex-Cool compatible coolant
Known Issues
Intake Manifold Gasket Leaks:
Common on earlier 3800 V6 engines, can cause coolant or oil leaks.
Transmission Hard Shifting:
Can sometimes be related to transmission fluid condition or solenoid issues.
Window Regulator Failure:
Power window regulators can be a point of failure.
Supercharger Belt Wear:
Supercharged models require attention to the supercharger drive belt.
📚 Vehicle History
Brand Heritage
Pontiac Legacy:
Pontiac was GM's performance-oriented division, known for models like the Firebird and GTO.
Model Evolution
Grand Prix Lineage:
The Grand Prix has a long history, evolving from personal luxury coupes to sedans with a focus on performance and sportiness.
Third Gen Debut:
The third generation (1997-2003) introduced a sleeker, more aerodynamic design and shared the W-body platform with other GM sedans.
Production
Manufacturing Location:
General Motors Fairfax Assembly Plant, Kansas City, Kansas, USA
Production Years
Model Production Years:
1978-2008 (continuous lineage, though generations vary significantly)
🏆 Awards & Recognition
Recognitions
Ward Auto World Engine Award:
The 3800 Series II V6 engine (both L36 and L67 variants) was a recipient of Ward's 10 Best Engines award in the late 1990s for its refinement, power, and efficiency.
Ratings
Consumer Reports Ratings:
Variable; Consumer Reports often highlighted the engine and ride quality but noted concerns with interior materials and reliability in certain areas.
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