🏷️ Basic Information

Make:

Buick

Model:

Park Avenue

Year:

1999

Platform:

GM H-body

👋 Introduction

Target Audience:

Owners seeking to perform their own maintenance and repairs, DIY enthusiasts, independent repair shops, and automotive students.

Value Proposition:

Provides dealership-level repair information in an accessible digital format, saving time and money compared to relying solely on professional mechanics or generic repair guides.

Convenience:

Searchable PDF format, printable pages, ability to enlarge images, no risk of physical damage or loss.

Accuracy:

Vehicle-specific information, identical to what technicians use at dealerships.

📋 Manual Details

All Models And Repairs:

A-Z

Estimated Pages:

Detailed information suggests extensive coverage, likely exceeding 1500 pages in a printed equivalent. Exact PDF page count may vary based on formatting.

Type:

Factory Authorized Service and Repair Manual

Language:

English

Digital Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Complete engine service, overhaul, diagnostics, specifications for all engine variants. Includes valve train, piston/ring assembly, crankshaft, camshaft, oil pump, etc.

Engine Control System:

ECM/PCM diagnostics, sensor operation (MAP, TPS, O2, IAT, ECT), actuator control (IAC, injectors), fuel injection system, ignition system operation and diagnosis.

Fuel Service Specifications:

Fuel pump pressure, injector flow rates, fuel filter replacement, fuel tank service, evaporative emission control (EVAP) system diagnosis.

Emission Control:

Catalytic converter operation, EGR system diagnosis, PCV system, emission control component testing, diagnosis of emission-related trouble codes.

Intake Exhaust Cooling:

Intake manifold service, exhaust system repair (mufflers, catalytic converters, pipes), cooling system (radiator, water pump, thermostat, coolant specifications, fan clutch/electric fan diagnosis).

Lube:

Engine oil specifications, oil filter part numbers, oil change intervals, oil cooler service (if applicable).

Ignition Starting Charging:

Spark plug specifications, ignition timing, coil pack diagnosis, starter motor service, alternator testing and replacement, battery maintenance.

Automatic Transmission Clutch:

ATF specifications, clutch pack diagnosis, torque converter service, transmission fluid change intervals, internal transmission component replacement, solenoids, sensors.

Manual Transmission:

N/A for Park Avenue (typically FWD, automatic only)

Transfer Propeller Shaft:

N/A for Park Avenue (FWD)

Drive Shaft:

FWD axle shaft service, CV joint replacement, boot replacement.

Differential:

FWD transaxle service, fluid specifications, bearing inspection.

Axle Suspension:

Front and rear suspension component diagnosis and replacement (struts, control arms, ball joints, bushings, sway bar links), alignment specifications.

Tire Wheel:

Tire pressure specifications, wheel bolt torque, wheel bearing replacement, tire rotation intervals.

Brake Control:

ABS system diagnosis and repair, EBD (Electronic Brakeforce Distribution) system components, brake fluid specifications, brake bleeding procedures.

Brake:

Front and rear brake pad and rotor replacement, caliper service, brake line inspection and repair, parking brake adjustment and service.

Steering Column:

Steering column assembly, tilt/telescope mechanism service, ignition switch replacement.

Power Steering:

Power steering pump service, rack and pinion steering gear diagnosis and repair, power steering fluid specifications, bleeding procedure.

Air Conditioning:

AC system diagnosis, refrigerant R134a specifications, compressor service, condenser, evaporator, blower motor, HVAC control module, cabin air filter replacement.

Supplemental Restraint System:

Airbag system diagnosis, SRS module, impact sensors, airbag module replacement, seat belt pretensioner service. *Caution: Requires specialized knowledge and safety procedures.*

Seat Belt:

Seat belt mechanism inspection, replacement, and retractor service.

Engine Immobilizer:

Immobilizer system components and diagnosis (if equipped).

Cruise Control:

Cruise control system diagnosis and repair, module, actuators, and switches.

Wiper Washer:

Wiper motor, linkage, blade replacement, washer fluid reservoir and pump service.

Door Lock:

Power door lock actuator replacement, central locking system diagnosis, keyless entry system components.

Meter Audio Visual:

Instrument cluster diagnosis and repair, speedometer, tachometer, gauges, audio system components, speaker replacement, antenna service.

Horn:

Horn operation, horn button contact, horn relay and horn unit replacement.

Windshield Glass Mirror:

Windshield wiper system, exterior mirror adjustment/replacement, power mirror components.

Instrument Panel:

Instrument panel removal and installation, gauge cluster service, lighting.

Seat:

Seat adjustment mechanisms, power seat motor replacement, seat trim service.

Engine Hood Door:

Hood latch and cable service, door hinge lubrication and adjustment, door panel removal.

Exterior Interior:

Body panel alignment, trim replacement, interior component refurbishment, weather stripping service.

Electrical:

Comprehensive electrical system diagnosis, battery testing, charging system, lighting, power distribution, relays, fuses, body control modules (BCM).

Multiplex Can Communication:

Diagnosis of multiplex communication systems, CAN bus network troubleshooting, related modules and wiring.

Maintenance Procedures:

Oil changes, filter replacements, fluid checks and top-offs, tire rotations, brake inspections, spark plug replacement, coolant flushes, belt replacement.

Troubleshooting Guides:

Systematic diagnostic procedures for common and uncommon faults, including symptom-based troubleshooting and DTC interpretation.

Repair Procedures:

Step-by-step instructions for component removal, installation, and adjustment for all major vehicle systems.

Diagnostic Procedures:

Detailed instructions for using diagnostic tools, interpreting scan tool data, and performing circuit tests.

Wiring Schematics:

Complete and detailed wiring diagrams for all electrical systems, including connector pinouts and wire colors.

Depth:

Factory-level technical detail, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission overhauls, including in-depth electrical and diagnostic procedures.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Printable:

Yes, all pages are printable for workshop use.

Image Resolution:

High resolution, allowing for enlargement of diagrams and illustrations.

Binding:

Digital PDF download (no physical binding)

Digital Paper:

N/A (digital format)

Operating Systems:

Windows (Vista32/64, XP, ME, 98, NT, 2000) and Mac compatible.

Software Requirements:

Adobe PDF Reader and Winzip (free online).

⚙️ Engine Specifications

Engine Options:

3800 Series II V6 (3.8L) L36 (Naturally Aspirated) and L67 (Supercharged) variants were common for 1999 Park Avenue models.

L36 Horsepower:

Approximately 205 hp @ 5200 rpm

L36 Torque:

Approximately 230 lb-ft @ 3200 rpm

L67 Supercharged Horsepower:

Approximately 240 hp @ 5200 rpm

L67 Supercharged Torque:

Approximately 280 lb-ft @ 3600 rpm

Fuel Injection:

Sequential Central Port Injection (SCPI) or Multi-Port Fuel Injection (MPFI) depending on engine variant.

Fuel Type:

Unleaded gasoline, 87 octane recommended for L36, 91 octane recommended for L67 Supercharged.

🔧 Transmission

Transmission Type:

4-speed automatic transmission (e.g., 4T65-E)

Optional Transmission:

N/A (only automatic available for this model year)

Traction Control:

Optional traction control system available on some models.

📐 Dimensions

Length:

Approx. 207.2 inches

Width:

Approx. 74.7 inches

Height:

Approx. 56.3 inches

Curb Weight:

Approx. 3,700 - 3,900 lbs (varies by trim and options)

Gross Vehicle Weight Rating:

Approx. 5,000 lbs

🛡️ Safety Features

NHTSA Front Crash Test Rating:

Good (for driver and passenger in frontal impact, based on available data for similar GM vehicles of the era)

IIHS Side Impact Test Rating:

Acceptable or Good (typical for the era, specific data for '99 Park Avenue may vary)

Anti Lock Braking System:

Standard ABS on all wheels.

Traction Control:

Optional.

Airbags:

Driver and front passenger airbags.

Seat Belts:

Front and rear seat belts with pretensioners for front occupants.

💡 Technology Features

Audio System:

Premium AM/FM stereo with cassette and CD player options, steering wheel audio controls.

Park Assist:

Rear parking assist sensors (optional on some models).

Onstar:

OnStar telematics system available as an option.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles or 6 months (using synthetic oil), or 3,000 miles/3 months (using conventional oil), with filter change at every oil change.

Transmission Fluid Change Interval:

Every 50,000 - 100,000 miles, or as per severe service schedule. Check manual for exact specification.

Coolant Flush Interval:

Every 50,000 miles or 5 years for Dex-Cool coolant, or as per manual for conventional coolant.

Spark Plug Replacement Interval:

Approx. 100,000 miles for platinum-tipped spark plugs (standard on 3800 Series II).

Engine Oil Type:

SAE 5W-30 (check manual for synthetic vs. conventional recommendations).

Transmission Fluid Type:

Dexron III (or equivalent specification ATF).

Coolant Type:

Dex-Cool (orange) or equivalent silicate-free, long-life coolant for 3800 Series II engines. Check manual for specific type.

Brake Fluid Type:

DOT 3 brake fluid.

Common Issues:

Intake manifold gaskets (3800 Series II), power steering pump leaks, window regulator failures, blower motor resistor failure, early transmission fluid leaks, sensor failures (e.g., crankshaft position sensor).

📚 Vehicle History

Buick Heritage:

Buick has a long history of producing comfortable, refined, and well-appointed luxury sedans. The Park Avenue embodies this heritage, offering a spacious and quiet ride.

Park Avenue Lineage:

The Park Avenue nameplate has a history dating back to the mid-20th century, evolving through various Buick platforms. The 1999 model is part of the third generation of the modern Park Avenue, introduced in 1997, based on the GM H-body platform.

Production Years:

1991-2005 for the third and fourth generations, with the 1999 model representing a significant year in its lifecycle, featuring the enhanced 3800 Series II V6 engines.

Manufacturing Location:

Primarily manufactured in North America (e.g., GM's Orion Assembly Plant in Michigan).

🏆 Awards & Recognition

Editorial Awards:

The 3800 Series II V6 engine was a recipient of Ward's 10 Best Engines awards during its production run, recognized for its smoothness, power, and efficiency.