2018-2020 GMC Canyon II Crew cab 2.8 Duramax TD (186 Hp) Automatic

The GMC Canyon II Crew Cab, specifically equipped with the 2.8-liter Duramax turbodiesel engine producing 186 horsepower and paired with a six-speed Hydra-Matic automatic transmission, was a mid-size pickup truck sold in North America from 2018 to 2020. This variant occupied a significant position within the Canyon II lineup, offering a balance between fuel efficiency, towing capability, and everyday usability. It represented GMC’s entry into the increasingly popular mid-size truck segment, competing with offerings from Toyota, Ford, and Chevrolet (with whom it shared a platform).

Technical Specifications

Introduction

The GMC Canyon II Crew Cab 2.8 Duramax TD Automatic, produced from 2018-2020, was a key component of GMC’s strategy to recapture market share in the mid-size truck segment. Built on the GM Colorado platform (internally designated as 31XX), the Canyon offered a more premium alternative to its Chevrolet sibling. The 2.8-liter Duramax diesel engine and six-speed automatic transmission combination was positioned as a sweet spot in the lineup, appealing to buyers who desired both fuel efficiency and the capability to tow and haul. This configuration aimed to bridge the gap between the base 2.5-liter gasoline engine and the more powerful 3.6-liter V6 options.

Powertrain & Engine Architecture

The heart of this Canyon variant is the 2.8-liter (2776 cc) inline-four cylinder Duramax turbodiesel engine, designated with the engine code LWN. This engine utilizes a common-rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion. The engine features a single variable geometry turbocharger (VGT) to enhance both low-end torque and high-end power. The double overhead camshaft (DOHC) valvetrain, with four valves per cylinder, contributes to efficient engine breathing. The six-speed Hydra-Matic automatic transmission, a GM-designed unit, was chosen for its smooth shifting and durability. It’s a conventional automatic with a torque converter, offering a balance between responsiveness and refinement. The transmission was calibrated specifically to work with the characteristics of the Duramax diesel, providing appropriate gear ratios for towing and everyday driving.

Driving Characteristics

The 186 horsepower and 368 lb-ft of torque produced by the 2.8-liter Duramax, when coupled with the six-speed automatic, resulted in a driving experience focused on usability and efficiency rather than outright performance. Acceleration was adequate, but not brisk, with a 0-60 mph time estimated around 9-10 seconds. The automatic transmission generally shifted smoothly, although some drivers noted a slight hesitation during downshifts. The gear ratios were optimized for towing, providing ample low-end torque for hauling loads. Compared to the 3.6-liter V6 Canyon, the Duramax offered significantly better fuel economy, but less overall power. The manual transmission versions of the 2.8L Duramax provided a more engaging driving experience, but the automatic was favored by those prioritizing convenience and ease of use.

Equipment & Trim Levels

The 2.8 Duramax Automatic was typically offered in the SLE and SLT trim levels. The SLE trim included standard features such as a 7-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, and keyless entry. The SLT trim added features like leather upholstery, heated front seats, an upgraded audio system, and additional chrome exterior accents. Optional extras included a navigation system, a premium Bose audio system, and a trailering package. Interior upholstery was typically cloth on the SLE and leather on the SLT. Dashboard configurations were consistent across trims, featuring a user-friendly layout with physical controls for key functions.

Chassis & Braking

The Canyon II Crew Cab utilized a body-on-frame construction, providing a robust platform for towing and hauling. The front suspension consisted of independent coil springs, while the rear suspension employed a traditional leaf spring setup. This configuration prioritized load-carrying capacity and durability. Braking duties were handled by disc brakes on all four wheels, with the front discs measuring 310x27mm and the rear discs measuring 324x18mm. An Anti-lock Braking System (ABS) was standard. The Canyon’s chassis was tuned to provide a comfortable ride, but it wasn’t as refined as some unibody competitors. Stabilizer bars were included to reduce body roll during cornering.

Market Reception & Comparison

Critics generally praised the Canyon II 2.8 Duramax Automatic for its fuel efficiency and towing capability. However, some reviewers noted that the engine could be noisy and that the automatic transmission wasn’t always the most responsive. Compared to the gasoline-powered Canyon models, the Duramax offered significantly better fuel economy – typically around 22 mpg city and 30 mpg highway. The Duramax also provided a substantial advantage in towing capacity. Compared to competitors like the Toyota Tacoma and Ford Ranger, the Canyon offered a more comfortable ride and a more refined interior, but some competitors had a stronger reputation for long-term reliability.

Legacy

The 2.8-liter Duramax engine, when properly maintained, has proven to be a relatively reliable powertrain. Common issues reported by owners include diesel particulate filter (DPF) clogging and occasional injector failures. However, these issues are not uncommon for modern diesel engines. On the used car market, the Canyon II 2.8 Duramax Automatic holds its value reasonably well, particularly models with lower mileage and well-documented maintenance histories. It remains a popular choice for buyers seeking a capable and fuel-efficient mid-size pickup truck. The combination of diesel power, automatic convenience, and GMC’s more upscale positioning continues to appeal to a specific segment of truck buyers.