The GMC Canyon I Regular Cab, specifically the 3.7-liter V6 4WD Automatic variant, was a mid-size pickup truck produced by General Motors from 2007 to 2012. Positioned as a more compact alternative to full-size trucks like the Sierra, the Canyon aimed to provide utility and capability in a more manageable package. This particular configuration, with its 242 horsepower engine and automatic transmission, represented a popular choice for buyers seeking a balance between work-truck functionality and everyday drivability. It was part of the first generation of the Canyon (model code: GMT900), which was also sold as the Chevrolet Colorado.
Technical Specifications
| Brand | GMC |
| Model | Canyon |
| Generation | Canyon I Regular Cab |
| Type (Engine) | 3.7 (242 Hp) 4WD Automatic |
| Start of production | 2007 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2-3 |
| Doors | 2 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg) |
| Fuel consumption (extra urban) | 10.6 l/100 km (22.2 US mpg, 26.6 UK mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7 kg/Hp, 143.4 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 194.4 Nm/tonne |
| Power | 242 Hp @ 5600 rpm |
| Power per litre | 66.2 Hp/l |
| Torque | 328 Nm @ 2800 rpm (241.92 lb.-ft. @ 2800 rpm) |
| Maximum engine speed | 6300 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | LLR |
| Engine displacement | 3654 cm3 (222.98 cu. in.) |
| Number of cylinders | 5 |
| Engine configuration | Inline |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 102 mm (4.02 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, CVVT |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1687 kg (3719.2 lbs.) |
| Max. weight | 2336 kg (5150 lbs.) |
| Max load | 649 kg (1430.8 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 | 4886 mm (192.36 in.) |
| Width | 1742 mm (68.58 in.) |
| Height | 1718 mm (67.64 in.) |
| Wheelbase | 2827 mm (111.3 in.) |
| Front track | 1515 mm (59.65 in.) |
| Rear (Back) track | 1520 mm (59.84 in.) |
| Ride height (ground clearance) | 201.6 mm (7.94 in.) |
| Minimum turning circle (turning diameter) | 12.4 m (40.68 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 | 225/70 R15; 235/75 R15 |
| Wheel rims size | 6.5J x 15 |
Powertrain & Engine Architecture
The heart of this Canyon variant was the 3.7-liter LLR inline five-cylinder engine. This engine, a key component of GM’s mid-size truck strategy, was designed to offer a balance of power and fuel efficiency. It featured a cast iron block and aluminum cylinder heads, incorporating dual overhead camshafts (DOHC) and Continuously Variable Valve Timing (CVVT) for optimized performance across the rev range. The multi-port fuel injection system delivered fuel directly to the intake ports, contributing to efficient combustion. The engine produced 242 horsepower at 5600 rpm and 328 lb-ft of torque at 2800 rpm. This power was channeled through a four-speed Hydra-Matic automatic transmission, a common and generally reliable unit for its time. The transmission’s gear ratios were tuned for a blend of towing capability and on-road comfort, though it lacked the efficiency of more modern transmissions with additional gears.
Driving Characteristics
The 3.7-liter engine and four-speed automatic combination provided adequate, but not exhilarating, performance. Acceleration was reasonable for everyday driving, but the Canyon didn’t feel particularly quick. The automatic transmission, while smooth in operation, could sometimes feel hesitant during downshifts, and lacked the responsiveness of a manual transmission. Compared to the optional 2.9-liter four-cylinder engine, the 3.7 offered significantly more power and torque, making it a better choice for towing and hauling. However, it didn’t match the performance of the higher-end Colorado/Canyon models equipped with the 5.3-liter V8. The 4WD system provided enhanced traction in slippery conditions, making it suitable for light off-road use and inclement weather.
Equipment & Trim Levels
The Regular Cab Canyon 3.7 4WD Automatic typically came with a fairly basic level of standard equipment. This included air conditioning, power windows and locks, and an AM/FM stereo. Higher trim levels, such as the SLE and SLT, added features like cruise control, upgraded upholstery, alloy wheels, and a premium sound system. Optional extras included a towing package, off-road suspension, and a navigation system. The interior was generally functional and durable, with a focus on practicality rather than luxury. The regular cab configuration offered seating for two or three passengers, depending on the bench seat option.
Chassis & Braking
The Canyon I Regular Cab utilized a body-on-frame construction, providing a robust and durable platform. The front suspension consisted of independent coil springs, while the rear suspension employed leaf springs. This setup prioritized load-carrying capacity and durability over refined ride quality. Braking duties were handled by ventilated discs at the front and drum brakes at the rear. An Anti-lock Braking System (ABS) was standard, enhancing safety during emergency braking situations. The steering system was a hydraulic rack and pinion setup, providing reasonably precise steering feel.
Market Reception & Comparison
The GMC Canyon, and its Chevrolet Colorado counterpart, were generally well-received as competent mid-size pickups. Critics praised their maneuverability and fuel efficiency compared to full-size trucks. However, the 3.7-liter engine and four-speed automatic transmission were sometimes criticized for their lack of refinement and relatively low fuel economy compared to some competitors. The 3.7L offered a good balance for those needing more power than the base 2.9L, but didn’t deliver the same level of performance as the V8. Fuel economy figures averaged around 16 mpg city and 22 mpg highway, which was typical for a truck of its size and class at the time.
Legacy
The GMC Canyon I, particularly the 3.7-liter V6 4WD Automatic variant, has become a relatively affordable and practical option in the used truck market. The LLR engine is generally considered reliable, although regular maintenance is crucial to prevent issues. Common concerns include oil leaks and potential problems with the CVVT system. The four-speed automatic transmission, while durable, is showing its age and may require servicing or rebuilding in higher-mileage examples. Despite its age, the Canyon I remains a capable and versatile truck for those seeking a compact pickup with 4WD capability. Its simple design and readily available parts make it a relatively easy vehicle to maintain and repair.
