The GMC Sierra 1500 IV, specifically the Double Cab configuration with the 5.3 EcoTec3 V8 engine and automatic transmission, represents a significant iteration in GMC’s full-size pickup truck lineage. Produced from 2016 to 2018 as part of the GMTK2XX platform’s facelift, this variant aimed to balance capability, comfort, and efficiency within the highly competitive North American truck market. This model year saw updates to the exterior styling, interior features, and technology, building upon the foundation laid by the previous GMTK2XX generation. The 5.3L V8/automatic powertrain combination was a mainstay of the Sierra 1500 lineup, positioned as a strong mid-range offering appealing to buyers needing substantial towing and hauling capacity without the premium price tag of the larger 6.2L engine.
Technical Specifications
| Brand | GMC |
| Model | Sierra 1500 |
| Generation | Sierra 1500 IV (GMTK2XX, facelift 2016) Double Cab |
| Type (Engine) | 5.3 EcoTec3 V8 (355/380 Hp) Automatic FlexFuel |
| Start of production | 2016 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg) |
| Fuel consumption (extra urban) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg) |
| Fuel Type | Petrol / Ethanol – E85 |
| Weight-to-power ratio | 6.5 kg/Hp, 153.2 Hp/tonne |
| Weight-to-torque ratio | 4.5 kg/Nm, 224 Nm/tonne |
| Power | 355 Hp @ 5600 rpm |
| Power per litre | 66.6 Hp/l |
| Power (Ethanol – E85) | 380 Hp @ 5600 rpm |
| Power per litre (Ethanol – E85) | 71.3 Hp/l |
| Torque | 519 Nm @ 4100 rpm (382.79 lb.-ft. @ 4100 rpm) |
| Torque (Ethanol – E85) | 564 Nm @ 4100 rpm |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L83 |
| 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 | 11:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 14.8 l (15.64 US qt | 13.02 UK qt) |
| Kerb Weight | 2317 kg (5108.11 lbs.) |
| Max. weight | 3175 kg (6999.68 lbs.) |
| Max load | 858 kg (1891.57 lbs.) |
| Trunk (boot) space – minimum | 1728 l (61.02 cu. ft.) |
| Fuel tank capacity | 98 l (25.89 US gal | 21.56 UK gal) |
| Permitted trailer load with brakes (12%) | 2903 kg (6400.02 lbs.) |
| Length | 5828 mm (229.45 in.) |
| Width including mirrors | 2032 mm (80 in.) |
| Height | 1876 mm (73.86 in.) |
| Wheelbase | 3645 mm (143.5 in.) |
| Front track | 1750 mm (68.9 in.) |
| Rear (Back) track | 1716 mm (67.56 in.) |
| Ride height (ground clearance) | 222 mm (8.74 in.) |
| Minimum turning circle (turning diameter) | 14.3 m (46.92 ft.) |
| Approach angle | 17° |
| Departure angle | 23.1° |
| Ramp-over (brakeover) angle | 18.9° |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent coil spring |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Front brakes | Ventilated discs, 330×30 mm |
| Rear brakes | Ventilated discs, 345×20 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/70 R17; 265/70 R17 |
| Wheel rims size | 8J x 17 |
Powertrain & Engine Architecture
At the heart of this Sierra 1500 variant lies the 5.3-liter EcoTec3 L83 V8 engine. This engine is a naturally aspirated, direct-injected powerplant featuring Active Fuel Management (cylinder deactivation) to improve fuel economy under light load conditions. The L83 utilizes a robust cast iron block with aluminum cylinder heads, contributing to its durability. The direct injection system, coupled with a variable valve timing system, optimizes combustion efficiency and power delivery. The engine produces 355 horsepower at 5600 rpm and 383 lb-ft of torque at 4100 rpm. When running on E85 fuel, output increases to 380 horsepower and 425 lb-ft of torque. The engine is mated to a six-speed Hydra-Matic automatic transmission, known for its smooth shifting and reliability. This transmission was specifically tuned to complement the characteristics of the 5.3L V8, providing adequate gear ratios for both towing and everyday driving.
Driving Characteristics
The 5.3L V8 with the six-speed automatic delivers a comfortable and capable driving experience. While not as quick as the 6.2L variant, the 5.3L provides ample power for most tasks, including towing trailers and hauling heavy loads. The automatic transmission shifts smoothly and predictably, although it may occasionally hunt for the right gear during highway passing maneuvers. The gear ratios are well-suited for maintaining comfortable cruising speeds while providing sufficient torque for acceleration. The Double Cab configuration offers a spacious interior and a comfortable ride, making it suitable for both work and family use. The rear-wheel-drive setup provides a traditional truck feel, while available four-wheel-drive systems enhance traction in inclement weather or off-road conditions.
Equipment & Trim Levels
The 2016-2018 GMC Sierra 1500 Double Cab 5.3L offered a range of trim levels, including SLE, SLT, and Denali. The SLE trim served as the entry-level option, featuring standard amenities such as air conditioning, power windows and locks, a basic infotainment system, and cloth upholstery. The SLT trim added features like leather upholstery, heated front seats, a premium audio system, and additional chrome exterior trim. The Denali trim represented the pinnacle of luxury, offering exclusive styling cues, advanced safety features, and a host of convenience options. Common optional extras included a navigation system, a sunroof, a rear-seat entertainment system, and various towing packages.
Chassis & Braking
The Sierra 1500 IV utilizes a fully boxed frame for enhanced rigidity and durability. The front suspension consists of independent coil springs, while the rear suspension employs a traditional leaf spring setup. This configuration provides a good balance of ride comfort and load-carrying capacity. The braking system features ventilated disc brakes on all four wheels, providing adequate stopping power for most driving situations. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking maneuvers. Steering is rack-and-pinion with electric power assist, offering precise and responsive handling.
Market Reception & Comparison
The GMC Sierra 1500 with the 5.3L V8 and automatic transmission was generally well-received by critics and consumers alike. It was praised for its comfortable ride, spacious interior, and capable performance. Compared to the larger 6.2L V8, the 5.3L offered a more affordable price point and slightly better fuel economy. However, it lacked the sheer power and towing capacity of its larger sibling. Compared to competitors like the Ford F-150 and Ram 1500, the Sierra 1500 held its own in terms of features, performance, and reliability. Fuel economy figures averaged around 16 mpg city and 23 mpg highway, depending on driving conditions and load.
Legacy
The 5.3L EcoTec3 V8 engine has proven to be a reliable and durable powerplant, with many examples exceeding 200,000 miles with proper maintenance. The six-speed Hydra-Matic automatic transmission is also known for its longevity. In the used car market, the 2016-2018 GMC Sierra 1500 Double Cab 5.3L represents a good value proposition, offering a blend of capability, comfort, and affordability. These trucks continue to be popular choices for buyers seeking a versatile and dependable full-size pickup.
