The GMC Acadia first arrived in the 2007 model year, representing GMC’s entry into the burgeoning mid-size crossover SUV segment. Built on the GM Theta Premium platform (also underpinning the Saturn Outlook and Buick Enclave), the Acadia aimed to provide a more upscale and refined experience than traditional truck-based SUVs, while still offering three-row seating and available all-wheel drive. The 3.6L V6 with 275 horsepower and a six-speed automatic transmission, introduced from the start, quickly became the mainstay powertrain for the Acadia, particularly in the North American market. Production of the first generation Acadia continued through 2009, establishing the model as a key player in GMC’s lineup.
Technical Specifications
| Brand | GMC |
| Model | Acadia |
| Generation | Acadia I |
| Type (Engine) | 3.6 V6 (275 Hp) AWD Automatic |
| Start of production | 2007 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV, Crossover |
| Seats | 8 |
| Doors | 5 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (combined) | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.9 sec |
| Acceleration 0 – 62 mph | 8.9 sec |
| Acceleration 0 – 60 mph | 8.5 sec |
| Maximum speed | 172 km/h (106.88 mph) |
| Weight-to-power ratio | 8.1 kg/Hp, 123 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 152.1 Nm/tonne |
| Power | 275 Hp @ 6600 rpm |
| Power per litre | 77.2 Hp/l |
| Torque | 340 Nm @ 3200 rpm (250.77 lb.-ft. @ 3200 rpm) |
| Engine Model/Code | LY7 |
| Engine displacement | 3564 cm3 (217.49 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 94 mm (3.7 in.) |
| Piston Stroke | 85.6 mm (3.37 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVT |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant | 11.6 l (12.26 US qt | 10.21 UK qt) |
| Kerb Weight | 2235 kg (4927.33 lbs.) |
| Max. weight | 2908 kg (6411.04 lbs.) |
| Max load | 673 kg (1483.71 lbs.) |
| Trunk (boot) space – minimum | 558 l (19.71 cu. ft.) |
| Trunk (boot) space – maximum | 3310 l (116.89 cu. ft.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Permitted trailer load with brakes (12%) | 2041 kg (4499.63 lbs.) |
| Length | 5098 mm (200.71 in.) |
| Width | 1986 mm (78.19 in.) |
| Height | 1775 mm (69.88 in.) |
| Wheelbase | 3020 mm (118.9 in.) |
| Front track | 1710 mm (67.32 in.) |
| Rear (Back) track | 1710 mm (67.32 in.) |
| Ride height (ground clearance) | 193 mm (7.6 in.) |
| Drag coefficient (Cd) | 0.34 |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 255/65 R18; 255/60 R19 |
| Wheel rims size | 18; 19 |
Powertrain & Engine Architecture
The heart of this Acadia variant is the 3.6-liter LY7 V6 engine. This engine is a member of GM’s High Feature V6 family, known for its relatively smooth operation and decent power output. The LY7 utilizes a 60-degree V-angle, aluminum cylinder heads, and a cast iron block. It employs multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with variable valve timing (VVT) on both intake and exhaust camshafts. This VVT system helps optimize engine performance and fuel efficiency across a wider range of engine speeds. The six-speed automatic transmission (6T75) was a crucial component, offering smooth shifts and contributing to the Acadia’s refined driving experience. This transmission featured electronically controlled shifting and adaptive learning capabilities.
Driving Characteristics
The 275-horsepower, all-wheel-drive Acadia offered respectable performance for its size and class. Acceleration from 0-60 mph took around 8.5 seconds, making it competitive with other mid-size crossovers. The automatic transmission was tuned for comfort and smooth operation, prioritizing drivability over outright sportiness. While not a particularly sporty vehicle, the Acadia provided adequate power for merging onto highways and passing other vehicles. The all-wheel-drive system enhanced traction in inclement weather, providing added confidence for drivers in regions with snow or rain. Compared to the base front-wheel-drive model, the AWD version offered improved stability and handling. The six-speed automatic’s gear ratios were optimized for both fuel economy and acceleration, providing a balance between the two.
Equipment & Trim Levels
The 3.6L V6 AWD Acadia typically came standard with features like tri-zone automatic climate control, a premium audio system, power-adjustable front seats, and rear parking assist. Higher trim levels, such as the SLE and Denali, added features like leather upholstery, heated front seats, a power liftgate, and a navigation system. Optional extras included a sunroof, DVD entertainment system, and upgraded wheels. The interior design was generally considered comfortable and well-appointed for its price point, with a focus on practicality and family-friendliness.
Chassis & Braking
The Acadia’s chassis featured an independent front suspension with McPherson struts and a multi-link independent rear suspension. This setup provided a comfortable ride quality, absorbing bumps and irregularities in the road surface effectively. The all-wheel-drive system utilized an automatic limited-slip differential, distributing torque between the front and rear axles as needed. Braking duties were handled by ventilated discs on all four wheels, providing adequate stopping power. The Acadia also included standard anti-lock brakes (ABS) and electronic stability control (ESC) for enhanced safety.
Market Reception & Comparison
The Acadia was generally well-received by critics and consumers alike. It was praised for its spacious interior, comfortable ride, and available all-wheel drive. However, some reviewers noted that its fuel economy was not class-leading, and its handling was not as sharp as some of its competitors. Compared to the base 2.4L four-cylinder Acadia, the 3.6L V6 offered significantly more power and a more refined driving experience, justifying the higher price tag. The V6 also provided a more capable towing capacity. Compared to other crossovers like the Honda Pilot and Toyota Highlander, the Acadia offered a more luxurious interior and a more distinctive exterior design.
Legacy
The LY7 V6 engine and 6T75 automatic transmission proved to be relatively reliable powertrains in the Acadia. While some owners have reported minor issues with oil consumption and transmission shifting, these problems are not widespread. Today, first-generation Acdias with the 3.6L V6 are readily available on the used car market at affordable prices. They remain a popular choice for families seeking a spacious and comfortable crossover SUV with all-wheel drive. Regular maintenance, including oil changes and transmission fluid flushes, is crucial for ensuring the long-term reliability of this powertrain.
