The Chevrolet Tahoe (GMTK2UC/G) with the 5.3 EcoTec V8 engine and automatic transmission represents a significant iteration of Chevrolet’s full-size SUV, produced from the 2014 to 2020 model years. This variant occupied a central position within the Tahoe lineup, offering a balance of power, capability, and comfort for families and those needing substantial towing capacity. It was part of the fourth generation of the Tahoe, built on the GMTK2UC/G platform, which brought improvements in ride quality, interior refinement, and safety features compared to its predecessors. The 5.3L V8/automatic combination was a popular choice, appealing to buyers who didn’t require the added expense or performance of the 6.2L engine option.
Technical Specifications
| Brand | Chevrolet |
| Model | Tahoe |
| Generation | Tahoe (GMTK2UC/G) |
| Type (Engine) | 5.3 EcoTec V8 (355 Hp) Automatic |
| Start of production | 2014 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 7 |
| 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 | 7 kg/Hp, 143.2 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 209.4 Nm/tonne |
| Power | 355 Hp @ 5600 rpm |
| Power per litre | 66.7 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 | 5326 cm3 (325.01 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 oil capacity | 7.6 l (8.03 US qt, 6.69 UK qt) |
| Coolant capacity | 16.8 l (17.75 US qt, 14.78 UK qt) |
| Kerb Weight | 2479 kg (5465.26 lbs.) |
| Max. weight | 3220 kg (7098.88 lbs.) |
| Max load | 741 kg (1633.63 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%) | 3900 kg (8598.03 lbs.) |
| Length | 5181 mm (203.98 in.) |
| Width | 2044 mm (80.47 in.) |
| Height | 1889 mm (74.37 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) | 200 mm (7.87 in.) |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Approach angle | 15.5° |
| Departure angle | 23.2° |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 265/65 R18; 275/55 R20; 285/45 R22 |
| Wheel rims size | 8.5J x 18; 9.0J x 20; 9.5J x 22 |
INTRODUCTION
The Chevrolet Tahoe (GMTK2UC/G) 5.3L EcoTec V8 Automatic, produced between 2014 and 2020, represents a cornerstone of Chevrolet’s full-size SUV offerings. Positioned as a mainstream trim level, it catered to a broad audience seeking a spacious, capable, and relatively affordable SUV. Built on the GMTK2UC/G platform, this generation Tahoe aimed to improve upon the previous model’s shortcomings in ride quality and interior refinement. The 5.3L engine and automatic transmission pairing was a popular choice, balancing performance with fuel efficiency and cost. It served as a workhorse for families, commuters, and those requiring substantial towing capacity.
Powertrain & Engine Architecture
At the heart of this Tahoe variant lies the L83 5.3-liter EcoTec3 V8 engine. This engine is a naturally aspirated, direct-injected powerplant featuring Active Fuel Management (AFM), a cylinder deactivation system designed to improve fuel economy by shutting down four cylinders during light-load driving conditions. The engine produces 355 horsepower at 5600 rpm and 383 lb-ft of torque at 4100 rpm. The direct injection system contributes to improved combustion efficiency and power output. The engine utilizes a variable valve timing system to optimize performance across the rev range.
The engine is mated to a six-speed automatic transmission (6L80-E). This transmission is known for its durability and smooth shifting characteristics. The 6L80-E features electronically controlled shifting and overdrive, contributing to both performance and fuel efficiency. The transmission’s gear ratios are tuned to provide a balance between acceleration and highway cruising comfort. The automatic transmission was a key factor in the Tahoe’s appeal to buyers prioritizing ease of use and convenience.
Driving Characteristics
The 5.3L V8 and six-speed automatic combination delivers adequate performance for everyday driving and towing. Acceleration is respectable, though not as brisk as the available 6.2L V8. The AFM system is generally seamless in operation, though some drivers may notice a slight vibration when transitioning between V8 and V4 modes. The automatic transmission shifts smoothly and responsively, providing a comfortable driving experience.
Compared to the manual transmission options (which were rare), the automatic offers greater convenience, particularly in stop-and-go traffic. Compared to the 6.2L V8, the 5.3L provides a more economical driving experience, albeit with a noticeable reduction in overall power and towing capacity. The gear ratios of the 6L80-E are optimized for both city and highway driving, providing sufficient torque for passing maneuvers and maintaining speed on inclines.
Equipment & Trim Levels
The 5.3L Tahoe typically came standard with a comprehensive list of features, including 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, such as LT and Premier, added features like leather upholstery, heated and ventilated front seats, a Bose premium sound system, and advanced safety technologies such as lane departure warning and forward collision alert.
Optional extras included a power sunroof, rear-seat entertainment system, and a navigation system. Interior upholstery options ranged from cloth to leather, with various color choices available. Dashboard configurations were generally consistent across trim levels, with minor variations in trim materials and accents.
Chassis & Braking
The GMTK2UC/G Tahoe utilizes a fully boxed frame for enhanced rigidity and durability. The suspension system consists of an independent front suspension with coil springs and a multi-link independent rear suspension. This setup provides a comfortable ride and good handling characteristics for a vehicle of its size.
Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. The Tahoe’s weight necessitates a robust braking system to ensure safe and reliable stopping performance. Stabilizer bars are included at both the front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Chevrolet Tahoe 5.3L V8 Automatic was generally well-received by critics and consumers alike. It was praised for its spacious interior, comfortable ride, and strong towing capacity. Fuel economy was considered adequate for a full-size SUV, though not exceptional. Compared to competitors like the Ford Expedition and GMC Yukon, the Tahoe offered a competitive combination of features, performance, and price.
The 5.3L engine offered a good balance between power and fuel efficiency, making it a popular choice for buyers who didn’t need the added performance of the 6.2L V8. However, some critics noted that the AFM system could be intrusive at times. Reliability was generally good, with the 5.3L V8 proving to be a durable and dependable engine.
Legacy
The GMTK2UC/G Tahoe 5.3L V8 Automatic has proven to be a reliable and long-lasting vehicle. On the used car market, these models continue to hold their value, particularly those in good condition with well-maintained service records. The 5.3L EcoTec3 V8 is known for its durability and relatively low maintenance costs.
Common issues reported include oil consumption (related to the AFM system) and occasional transmission problems, but these are generally not widespread. Overall, the 2014-2020 Chevrolet Tahoe 5.3L V8 Automatic remains a popular choice for buyers seeking a spacious, capable, and dependable full-size SUV.
