The GMC Canyon I Extended Cab, specifically equipped with the 5.3-liter V8 engine, four-wheel drive, and an automatic transmission, was a mid-size pickup truck produced from 2009 to 2012. This variant occupied a significant position in the Canyon lineup, offering a balance between capability, comfort, and affordability. It represented GMC’s entry into the increasingly popular mid-size truck segment, aimed at buyers needing more than a compact pickup but not requiring the full size of a Sierra. The Canyon shared its platform with the Chevrolet Colorado, but featured GMC-specific styling and trim options.
Technical Specifications
| Brand | GMC |
| Model | Canyon |
| Generation | Canyon I Extended Cab |
| Type (Engine) | 5.3 V8 (300 Hp) 4WD Automatic |
| Start of production | 2009 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 4-5 |
| Doors | 4 |
| Fuel consumption (urban) | 16.8 l/100 km (14 US mpg, 16.8 UK mpg) |
| Fuel consumption (extra urban) | 12.3 l/100 km (19.1 US mpg, 23 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.3 kg/Hp, 159.9 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 231.3 Nm/tonne |
| Power | 300 Hp @ 5200 rpm |
| Power per litre | 56.3 Hp/l |
| Torque | 434 Nm @ 4000 rpm (320.1 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 6000 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | LH8 |
| Engine displacement | 5328 cm3 (325.13 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 96 mm (3.78 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 9.9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 13 l (13.74 US qt | 11.44 UK qt) |
| Kerb Weight | 1876 kg (4135.87 lbs.) |
| Max. weight | 2404 kg (5299.91 lbs.) |
| Max load | 528 kg (1164.04 lbs.) |
| Trunk (boot) space – minimum | 1245 l (43.97 cu. ft.) |
| Fuel tank capacity | 74.2 l (19.6 US gal | 16.32 UK gal) |
| Length | 5260 mm (207.09 in.) |
| Width | 1742 mm (68.58 in.) |
| Height | 1723 mm (67.83 in.) |
| Wheelbase | 3200 mm (125.98 in.) |
| Front track | 1515 mm (59.65 in.) |
| Rear (Back) track | 1520 mm (59.84 in.) |
| Ride height (ground clearance) | 290 mm (11.42 in.) |
| Minimum turning circle (turning diameter) | 13.5 m (44.29 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 4 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent coil spring |
| Rear suspension | Leaf spring |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 265/70R17 |
| Wheel rims size | 17 |
Introduction
The 2009-2012 GMC Canyon I Extended Cab with the 5.3L V8 and 4WD automatic transmission was a key offering in GMC’s mid-size truck strategy. Built on the GMT900 platform, also underpinning the Chevrolet Colorado, the Canyon aimed to provide a more refined and capable alternative to compact pickups while remaining more manageable in size and price than full-size trucks. The Extended Cab configuration added rear seating, increasing the Canyon’s versatility for families or crews. This particular variant was positioned as a step up from the base 2.9L four-cylinder engine, offering significantly more power and towing capacity for those needing a workhorse truck.
Powertrain & Engine Architecture
At the heart of this Canyon variant lies the GM LH8 5.3-liter small-block V8 engine. This engine, a member of the Vortec family, is a naturally aspirated, 90-degree V8 featuring a cast iron block and aluminum cylinder heads. It utilizes a multi-port fuel injection system, delivering fuel directly to each cylinder. The engine’s valvetrain employs an overhead valve (OHV) configuration with two valves per cylinder. The 5.3L V8 produces 300 horsepower at 5200 rpm and 320 lb-ft of torque at 4000 rpm. The engine is paired with a four-speed Hydra-Matic 4L60-E automatic transmission, known for its durability and relatively smooth shifting. This transmission was a common choice for GM trucks and SUVs of the era. The 4L60-E features electronic control for optimized shift points and performance.
Driving Characteristics
The 5.3L V8 significantly altered the driving experience compared to the base engine options. Acceleration was brisk, providing ample power for merging onto highways and passing maneuvers. While not a performance truck, the V8 offered a noticeable advantage in towing and hauling. The four-speed automatic transmission, while not as sophisticated as newer transmissions with more gears, provided adequate performance for everyday driving. Gear ratios were tuned for a balance of fuel economy and towing capability. Compared to the manual transmission versions, the automatic offered greater convenience, particularly in urban environments. However, some drivers noted a slight reduction in fuel efficiency and a less engaging driving experience with the automatic.
Equipment & Trim Levels
The Canyon I Extended Cab 5.3L V8 4WD typically came standard with features such as air conditioning, power windows and locks, and an AM/FM stereo. Higher trim levels, such as the SLE and SLT, added features like leather upholstery, a premium sound system, alloy wheels, and a power driver’s seat. The Extended Cab configuration included a split bench seat in the rear, offering seating for three passengers, although space was somewhat limited. Optional extras included a navigation system, a sunroof, and a trailering package, which added a trailer hitch, wiring harness, and upgraded cooling system.
Chassis & Braking
The Canyon I utilized a body-on-frame construction, providing a robust and durable platform. The front suspension featured independent coil springs, while the rear suspension employed leaf springs. This configuration was typical for trucks of this era, prioritizing load-carrying capacity and durability. The 5.3L V8 models typically came equipped with ventilated disc brakes in the front and drum brakes in the rear. Anti-lock brakes (ABS) were standard, enhancing safety and control during emergency braking situations. The Canyon’s chassis was designed to handle the increased weight and power of the V8 engine, providing a stable and controlled ride.
Market Reception & Comparison
Critics generally praised the Canyon’s V8 engine for its power and capability, but some noted that the interior felt somewhat basic compared to competitors. Fuel economy was a common concern, as the 5.3L V8 was not particularly fuel-efficient. Compared to the 2.9L four-cylinder and the 3.7L five-cylinder options, the V8 offered a significant performance upgrade, but at the cost of increased fuel consumption. The Canyon competed with other mid-size trucks such as the Toyota Tacoma, Nissan Frontier, and Ford Ranger. The Canyon often offered a more affordable price point than the Tacoma, but lacked the Tacoma’s reputation for long-term reliability.
Legacy
The GMC Canyon I Extended Cab 5.3L V8 4WD, while discontinued in 2012, remains a popular choice in the used truck market. The LH8 V8 engine is known for its durability and relatively simple maintenance requirements. However, potential buyers should be aware of potential issues such as oil leaks and Active Fuel Management (AFM) system problems. The 4L60-E transmission is also generally reliable, but may require occasional maintenance or rebuilding. Overall, this Canyon variant offers a compelling combination of power, capability, and affordability, making it a viable option for those seeking a mid-size truck with V8 performance.


