The GMC Yukon IV, produced from 2014 to 2019, represents the fourth generation of General Motors’ full-size SUV. Positioned as a premium offering within the GM truck and SUV family, the Yukon IV competed directly with vehicles like the Chevrolet Tahoe, Cadillac Escalade, and Ford Expedition. The 5.3 EcoTec3 V8 with a four-wheel drive (4WD) and automatic transmission configuration was a popular choice, offering a balance of power, capability, and relative fuel efficiency for its class. This variant served as a mid-range option, slotting between the base 5.3L and the more powerful 6.2L engine choices.
Technical Specifications
| Brand | GMC |
| Model | Yukon |
| Generation | Yukon IV |
| Type (Engine) | 5.3 EcoTec3 V8 (355 Hp) 4WD Automatic |
| Start of production | January, 2014 |
| End of production | December, 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 8 |
| Doors | 5 |
| Fuel consumption (urban) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.2 kg/Hp, 139.1 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 203.4 Nm/tonne |
| Power | 355 Hp @ 5600 rpm |
| Power per litre | 66.6 Hp/l |
| Torque | 519 Nm @ 4100 rpm (382.79 lb.-ft. @ 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 | VVT |
| Engine oil capacity | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Coolant | 16.8 l (17.75 US qt | 14.78 UK qt) |
| Kerb Weight | 2552 kg (5626.2 lbs.) |
| Trunk (boot) space – minimum | 433 l (15.29 cu. ft.) |
| Trunk (boot) space – maximum | 2681 l (94.68 cu. ft.) |
| Fuel tank capacity | 98 l (25.89 US gal | 21.56 UK gal) |
| Permitted trailer load with brakes (12%) | 3720 kg (8201.2 lbs.) |
| Length | 5179 mm (203.9 in.) |
| Width | 2045 mm (80.51 in.) |
| Height | 1890 mm (74.41 in.) |
| Wheelbase | 2946 mm (115.98 in.) |
| Front track | 1745 mm (68.7 in.) |
| Rear (Back) track | 1744 mm (68.66 in.) |
| Ride height (ground clearance) | 203 mm (7.99 in.) |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Approach angle | 15.3° |
| Departure angle | 23.2° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs, 330 mm |
| Rear brakes | Disc, 345 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 265/65 R18 |
| Wheel rims size | 8.5J x 18 |
Powertrain & Engine Architecture
At the heart of this Yukon IV variant lies the 5.3-liter L83 EcoTec3 V8 engine. This engine is a member of GM’s small-block V8 family, known for its durability and relatively straightforward design. The “EcoTec3” designation signifies several fuel-saving technologies, including direct fuel injection, variable valve timing (VVT), and cylinder deactivation (Active Fuel Management). Direct injection improves combustion efficiency and power output, while VVT optimizes valve timing for varying engine speeds and loads. Cylinder deactivation allows the engine to operate on four cylinders during light-load conditions, further enhancing fuel economy. The L83 produces 355 horsepower and 383 lb-ft of torque. The engine is longitudinally mounted in the chassis. The transmission paired with this engine is a six-speed automatic (6L80), chosen for its smooth shifting and ability to handle the engine’s torque output. This transmission features electronically controlled shifting and overdrive for improved highway fuel economy.
Driving Characteristics
The 5.3L V8 and six-speed automatic combination in the Yukon IV delivers adequate performance for everyday driving and towing. Acceleration is respectable, though not particularly sporty, with a 0-60 mph time typically around 7.5-8.5 seconds. The automatic transmission is tuned for comfort and smoothness, with gear changes generally imperceptible. Compared to the available 6.2L V8, the 5.3L offers less outright power and acceleration. However, it provides a more relaxed driving experience and better fuel economy. The 6L80 transmission’s gear ratios are optimized for both towing and highway cruising. The 4WD system provides enhanced traction in inclement weather and off-road conditions, though the Yukon IV is primarily designed as an on-road vehicle.
Equipment & Trim Levels
The 5.3L Yukon IV typically came standard with features such as tri-zone automatic climate control, an 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, and rear parking sensors. Higher trim levels, like SLT and Denali, added features such as leather upholstery, heated and ventilated front seats, a premium sound system, and advanced safety technologies like lane departure warning and forward collision alert. Optional extras included a power sunroof, rear-seat entertainment system, and adaptive cruise control. Interior upholstery was typically cloth on base models, with leather available on higher trims. Dashboard configurations were consistent across trims, with variations in trim materials and feature availability.
Chassis & Braking
The Yukon IV utilizes a body-on-frame construction, providing a robust and durable platform. The suspension consists of an independent coil spring front suspension and an independent multi-link rear suspension, offering a comfortable ride quality. The 5.3L variant typically features ventilated disc brakes at the front and disc brakes at the rear. ABS (Anti-lock Braking System) is standard. Stabilizer bars are present at both the front and rear to reduce body roll during cornering. The Yukon IV’s chassis is designed to handle substantial weight, making it suitable for towing and hauling.
Market Reception & Comparison
The GMC Yukon IV 5.3L 4WD Automatic was generally well-received by critics and consumers. It was praised for its spacious interior, comfortable ride, and capable towing capacity. Fuel economy, however, was a common criticism, as expected for a full-size SUV. Compared to the 6.2L Yukon, the 5.3L offered a lower price point and better fuel efficiency, making it a more attractive option for buyers who didn’t require maximum power. The Chevrolet Tahoe, being mechanically similar, offered a more affordable alternative, while the Cadillac Escalade provided a more luxurious experience at a higher price.
Legacy
The L83 5.3L EcoTec3 V8 has proven to be a relatively reliable powertrain. Common issues, when they arise, often relate to oil consumption and the Active Fuel Management system. The 6L80 transmission is also generally durable, though regular maintenance, including fluid changes, is crucial for longevity. In the used car market, the 2014-2019 Yukon IV 5.3L 4WD Automatic remains a popular choice, offering a good balance of features, capability, and value. Its robust construction and proven powertrain contribute to its continued appeal among buyers seeking a full-size SUV.
