The GMC Yukon XL II, produced between 2000 and 2006, represented the second generation of the extended-length Yukon, based on the GMT800 platform. This generation saw significant improvements in interior space, refinement, and powertrain options compared to its predecessor. The 1500 series, equipped with the 5.3-liter V8 engine and a four-speed automatic transmission, occupied a crucial middle ground in the Yukon XL II lineup, offering a balance of capability, comfort, and affordability. It was positioned as a step up from the base models, providing more power and towing capacity without the premium price tag of the 2500 series.
Technical Specifications
| Brand | GMC |
| Model | Yukon XL II |
| Generation | GMT800 |
| Type | 1500 5.3 V8 Automatic |
| Start of Production | 2000 |
| End of Production | 2006 |
| Powertrain Architecture | Internal Combustion Engine |
| Body Type | SUV |
| Seats | 5-9 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-Power Ratio | 8.1 kg/Hp |
| Power | 285 Hp @ 5200 rpm |
| Power per Liter | 53.5 Hp/l |
| Torque | 441 Nm @ 4000 rpm (325.26 lb.-ft. @ 4000 rpm) |
| Engine Layout | Front, Longitudinal |
| Engine Displacement | 5327 cm3 (325.07 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 | 9.5:1 |
| Valves per Cylinder | 2 |
| Fuel Injection System | Multi-port Manifold Injection |
| Engine Aspiration | Naturally Aspirated |
| Engine Oil Capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant Capacity | 15.8 l (16.7 US qt | 13.9 UK qt) |
| Kerb Weight | 2310 kg (5092.68 lbs.) |
| Max. Weight | 3175 kg (6999.68 lbs.) |
| Max Load | 865 kg (1907 lbs.) |
| Trunk Space (min) | 1294 l (45.7 cu. ft.) |
| Trunk Space (max) | 3726 l (131.58 cu. ft.) |
| Fuel Tank Capacity | 123 l (32.49 US gal | 27.06 UK gal) |
| Length | 5570 mm (219.29 in.) |
| Width | 2002 mm (78.82 in.) |
| Height | 1923 mm (75.71 in.) |
| Wheelbase | 3302 mm (130 in.) |
| Front Track | 1651 mm (65 in.) |
| Rear Track | 1676 mm (65.98 in.) |
| Drivetrain | Rear Wheel Drive |
| Gearbox | 4-speed Automatic |
| Front Suspension | Independent Coil Spring, Torsion |
| Rear Suspension | Independent Multi-link Suspension, Coil Spring |
| Front Brakes | Disc |
| Rear Brakes | Drum |
| Assisting Systems | ABS |
| Power Steering | Hydraulic |
| Tire Size | 245/75 R16 |
| Wheel Rim Size | 7J x 16 |
Powertrain & Engine Architecture
The heart of the Yukon XL II 1500 was the 5.3-liter (325 cubic inch) Small-Block Chevrolet V8 engine. This engine, part of the Vortec series, utilized an iron block with aluminum cylinder heads. The engine code typically associated with this configuration is LM7. It featured a 9.5:1 compression ratio and a multi-port fuel injection system, delivering a respectable 285 horsepower and 325 lb-ft of torque. The Vortec engines were known for their relatively simple design and robust construction. The four-speed automatic transmission (likely a 4L60E) was chosen for its durability and suitability for towing. While not the most technologically advanced transmission available at the time, it provided smooth shifts and reliable performance. The transmission was electronically controlled, adapting shift points based on throttle position and vehicle speed.
Driving Characteristics
The 5.3L V8 and four-speed automatic combination in the Yukon XL II provided adequate, though not exhilarating, performance. Acceleration was sufficient for everyday driving and towing, but it wasn’t a particularly sporty vehicle. The automatic transmission’s gear ratios were optimized for towing and fuel economy rather than quick acceleration. The Yukon XL II felt substantial on the road, with a noticeable weight due to its size and construction. Compared to the 6.0L V8 option, the 5.3L offered less raw power, but it also delivered slightly better fuel economy. Against the diesel options, the 5.3L lacked the low-end torque favored for heavy hauling, but it was quieter and smoother in operation.
Equipment & Trim Levels
The Yukon XL II 1500 with the 5.3L V8 typically came standard with features like air conditioning, power windows and locks, a CD player, and cloth upholstery. Higher trim levels, such as the SLT, added features like leather upholstery, heated seats, a premium sound system, and alloy wheels. Optional extras included a DVD entertainment system, a sunroof, and upgraded towing packages. The interior design was functional and spacious, prioritizing comfort and practicality over luxury. The extended wheelbase of the XL II provided ample third-row seating and cargo space, making it a popular choice for large families.
Chassis & Braking
The GMT800 platform utilized a body-on-frame construction, providing a robust and durable chassis. The front suspension featured independent coil springs and torsion bars, while the rear suspension employed an independent multi-link setup with coil springs. This suspension configuration aimed to balance ride comfort with handling stability. Braking duties were handled by disc brakes up front and drum brakes in the rear. Anti-lock Braking System (ABS) was standard, enhancing safety during emergency braking situations. The steering was hydraulic power-assisted, providing relatively easy maneuverability despite the vehicle’s size.
Market Reception & Comparison
The Yukon XL II 1500 5.3L V8 was generally well-received by critics and consumers alike. It was praised for its spacious interior, comfortable ride, and capable towing capacity. However, some reviewers noted that the 5.3L engine could feel underpowered when fully loaded or towing heavy trailers. Fuel economy was also a common criticism, as large SUVs of this era were not known for their efficiency. Compared to the Ford Expedition and the Chevrolet Suburban, the Yukon XL II offered a similar level of features and performance, often at a slightly higher price point. The 5.3L engine offered a good balance between power and fuel economy compared to the larger 6.0L V8, making it a popular choice for buyers who didn’t require maximum towing capacity.
Legacy
The GMT800 Yukon XL II, particularly the 5.3L V8/automatic combination, has proven to be a relatively reliable vehicle in the used car market. The Vortec 5.3L engine is known for its longevity and relatively simple maintenance requirements. Common issues include oil leaks, intake manifold gasket failures, and occasional transmission problems. However, these issues are generally well-documented and relatively inexpensive to repair. Today, these Yukon XL IIs are often found as work vehicles, family haulers, or tow vehicles. Their spacious interiors and robust construction continue to make them a practical choice for those needing a large SUV with good towing capacity. The 4L60E transmission, while reliable, is often the first component to require attention as these vehicles age.
