Target Audience:
Owners seeking to perform their own maintenance and repairs, independent repair shops, dealership technicians.
Value Proposition:
Provides the exact same, vehicle-specific information used by dealership technicians, offering a significant cost-saving advantage over dealership service.
Feature 1:
Vehicle-specific, not generic information.
Feature 2:
Comprehensive step-by-step instructions, diagrams, illustrations, and wiring schematics.
Feature 3:
All-in-one PDF format for easy navigation and printing of specific sections.
Engine:
3.8L V6 naturally aspirated (L36), 3.8L V6 supercharged (L67)
Control System:
Engine Control Module (ECM), Powertrain Control Module (PCM), Body Control Module (BCM), Transmission Control Module (TCM), ABS/Traction Control System
Mechanical:
Engine mechanical, transmission mechanical, chassis components
Fuel Service:
Fuel system components, fuel injectors, fuel pump, fuel pressure
Emission Control:
Catalytic converter, O2 sensors, EVAP system
Intake Exhaust Cooling:
Intake manifold, exhaust system, radiator, cooling fan, water pump
Lube:
Engine oil, transmission fluid, differential fluid
Ignition Starting Charging:
Spark plugs, ignition coils, starter motor, alternator, battery
Auto Transmission:
4-Speed Automatic (4T65-E)
Manual Transmission:
N/A for most Grand Prix models, but manual will specify if applicable to certain trims/years.
Suspension:
Front struts, rear shocks, coil springs, control arms, sway bars
Brakes:
Front disc brakes, rear disc brakes, ABS system
Steering:
Power steering system, steering column
Climate Control:
Air conditioning (A/C) system, heater core, climate controls
Restraint System:
Airbags, seat belts, Supplemental Restraint System (SRS)
Electrical:
Wiring diagrams, fuses, relays, lighting, power windows, locks
Multiplex Can Communication:
CAN bus communication protocols, diagnostic trouble codes (DTCs)
Body And Interior:
Doors, windows, seats, instrument panel, exterior trim
Maintenance:
Oil changes, filter replacements, fluid checks and changes, tune-ups
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, DTC interpretation
Repair:
Component removal, installation, adjustment, and overhaul
Wiring Schematics:
Comprehensive electrical diagrams for all systems
Depth:
Factory-level diagnostic and repair procedures, suitable for professional technicians and advanced DIYers.
Engine Description 1:
3.8L (3800 cc) Series II V6 Naturally Aspirated
Horsepower 1:
200-205 hp @ 5200 rpm (approx.)
Torque 1:
225-230 lb-ft @ 4000 rpm (approx.)
Engine Description 2:
3.8L (3800 cc) Series II V6 Supercharged
Horsepower 2:
240-260 hp @ 5200 rpm (approx.)
Torque 2:
280-320 lb-ft @ 3600-4000 rpm (approx.)
Fuel Type:
Unleaded Gasoline
Fuel Delivery:
Multi-port Fuel Injection (MPFI)
Compression Ratio L36:
9.4:1
Compression Ratio L67:
8.5:1
NHTSA Frontal Driver 5 Star:
Yes (for 2006 model year)
NHTSA Frontal Passenger 5 Star:
Yes (for 2006 model year)
IIHS Front Small Overlap Moderate:
Good (for similar GM W-body vehicles of the era)
ABS:
Standard Anti-lock Braking System
Traction Control:
Standard Traction Control System (TCS)
Airbags:
Frontal airbags, Side-impact airbags (optional on some trims)
Seat Belts:
3-point active-locking retractors (ALRs) on all seating positions
Oil Change Interval:
Every 5,000-7,500 miles or 6 months, depending on driving conditions and oil used (refer to manual for specific recommendations).
Transmission Fluid Change:
Recommended every 50,000-100,000 miles or as per severity schedule in manual.
Engine Oil Type L36:
SAE 3.8L V6 (L36): SAE 5W-30 (Synthetic blend recommended)
Engine Oil Type L67:
SAE 3.8L V6 Supercharged (L67): SAE 5W-30 (Synthetic blend recommended)
Coolant:
GM DEX-COOL® 50/50 Prediluted Antifreeze/Coolant (Orange)
Common Issue 1:
Intake manifold gasket leaks (especially on early 3800 Series II engines, though less common on this generation).
Common Issue 2:
Supercharger decoupling pulley or tensioner pulley noise/failure (on L67 models).
Common Issue 3:
Power steering pump leaks or whine.
Common Issue 4:
Window regulator failures.
Common Issue 5:
Wheel bearing wear.
Pontiac Legacy:
Pontiac was positioned as GM's performance-oriented brand, with the Grand Prix being a flagship model known for its sporty image and powerful V6 engines.
W Body Platform:
The 2006 Grand Prix is part of the third generation of the W-body platform, introduced in 2004, featuring updated styling and chassis improvements.
Manufacturing Location:
Lake Orion, Michigan, USA (Orion Assembly Plant)
Production Years Third Gen:
2004-2008
