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 an automatic transmission was a mainstay of the Yukon IV lineup, representing a balance between capability, fuel efficiency, and price point. It served as the mid-range engine option, slotting between the base 5.3L and the more powerful 6.2L V8 engines. This configuration was particularly popular with buyers seeking a spacious, comfortable SUV with strong towing capacity for family use and recreational activities.
Technical Specifications
| Brand | GMC |
| Model | Yukon |
| Generation | Yukon IV |
| Type (Engine) | 5.3 EcoTec3 V8 (355 Hp) 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) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (extra urban) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.9 kg/Hp, 145.5 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 212.7 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 | 2440 kg (5379.28 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%) | 3855 kg (8498.82 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 of the vehicle. |
| Drive wheel | Rear wheel drive |
| 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
The heart of this Yukon IV variant is the 5.3-liter L83 EcoTec3 V8 engine. This engine is a member of GM’s small-block V8 family, but incorporates several advanced technologies. Key features include direct fuel injection, variable valve timing (VVT), and Active Fuel Management (AFM), which allows the engine to deactivate cylinders under light load conditions to improve fuel economy. The L83 utilizes aluminum cylinder heads and a cast iron block. The engine produces 355 horsepower at 5600 rpm and 383 lb-ft of torque at 4100 rpm. The engine is mated to a six-speed automatic transmission (6L80-E), known for its smooth shifting and durability. This transmission is electronically controlled and features overdrive for highway efficiency.
Driving Characteristics
The 5.3L V8 and six-speed automatic combination in the Yukon IV delivers adequate performance for most driving situations. Acceleration is respectable, though not particularly sporty, with a 0-60 mph time typically around 7.5-8.5 seconds. The automatic transmission is well-tuned, providing smooth and predictable shifts. Compared to the 6.2L V8, the 5.3L offers less outright power, resulting in slower acceleration and a slightly reduced towing capacity. However, the 5.3L is more fuel-efficient. The gear ratios in the 6L80-E transmission are optimized for both towing and highway cruising, providing sufficient torque for hauling and comfortable operation at higher speeds. The Yukon IV’s substantial weight does impact handling, but the independent suspension provides a reasonably comfortable ride.
Equipment & Trim Levels
The 5.3L V8 was available on several Yukon trim levels, including the SLE, SLT, and LTZ. Standard features typically included tri-zone automatic climate control, an 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and a rearview camera. Higher trim levels, like the LTZ, added features such as leather upholstery, heated and ventilated front seats, a Bose 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 a navigation system.
Chassis & Braking
The Yukon IV utilizes a body-on-frame construction, providing a robust and durable platform. The front suspension consists of independent coil springs, while the rear suspension features an independent multi-link setup. This configuration aims to balance ride comfort with handling stability. Brakes are ventilated discs at all four corners, with larger rotors on the front axle. Anti-lock brakes (ABS) are standard, along with electronic stability control. The Yukon IV’s substantial weight necessitates a capable braking system, and the discs provide adequate stopping power.
Market Reception & Comparison
The GMC Yukon IV with the 5.3L V8 and automatic transmission was generally well-received by critics and consumers. It was praised for its spacious interior, comfortable ride, and strong towing capacity. Fuel economy was considered acceptable for a full-size SUV, though not exceptional. Compared to the 6.2L V8, the 5.3L offered a more affordable entry point and better fuel efficiency, making it a popular choice for buyers who didn’t require the maximum towing capacity or performance. The Chevrolet Tahoe, being mechanically similar, offered a more budget-friendly alternative, while the Cadillac Escalade provided a more luxurious experience at a higher price point.
Legacy
The L83 5.3L EcoTec3 V8 has proven to be a relatively reliable engine, with few widespread issues reported. The 6L80-E transmission is also known for its durability. In the used car market, Yukon IV models equipped with this powertrain remain popular due to their combination of capability, comfort, and affordability. Regular maintenance, including oil changes and transmission fluid services, is crucial for ensuring the long-term reliability of this powertrain. While newer Yukon models offer more advanced technology and improved fuel efficiency, the Yukon IV 5.3L remains a capable and practical choice for buyers seeking a full-size SUV.
