The Jeep Grand Cherokee II (WJ), specifically the facelifted version produced from 2003 to 2004, represented a significant step forward for the iconic American SUV. This generation, built on the WH platform, aimed to blend rugged off-road capability with a more refined on-road experience. The 4.7 V8 model, equipped with a four-speed automatic transmission and four-wheel drive, occupied a prominent position in the lineup, offering a balance of power and convenience for buyers seeking a capable and comfortable SUV. It served as a step up from the base 3.7L V6, and a more accessible alternative to the high-performance 4.0L inline-six and later supercharged variants.
Technical Specifications
| Brand | Jeep |
| Model | Grand Cherokee |
| Generation | Grand Cherokee II (WJ, facelift 2003) |
| Type (Engine) | 4.7 V8 (235 Hp) 4×4 Automatic |
| Start of production | 2003 |
| End of production | 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (EPA) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel consumption (economy) – combined (EPA) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.9 kg/Hp, 127 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 216.1 Nm/tonne |
| Power | 235 Hp @ 4800 rpm |
| Power per litre | 50 Hp/l |
| Torque | 400 Nm @ 3200 rpm (295.02 lb.-ft. @ 3200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EVA |
| Engine displacement | 4701 cm3 (286.87 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 93 mm (3.66 in.) |
| Piston Stroke | 86.5 mm (3.41 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 13.7 l (14.48 US qt | 12.05 UK qt) |
| Kerb Weight | 1851 kg (4080.76 lbs.) |
| Max. weight | 2495 kg (5500.53 lbs.) |
| Max load | 644 kg (1419.78 lbs.) |
| Trunk (boot) space – minimum | 1104 l (38.99 cu. ft.) |
| Trunk (boot) space – maximum | 2047 l (72.29 cu. ft.) |
| Fuel tank capacity | 78 l (20.61 US gal | 17.16 UK gal) |
| Max. roof load | 68 kg (149.91 lbs.) |
| Permitted trailer load with brakes (12%) | 2948 kg (6499.23 lbs.) |
| Permitted towbar download | 340 kg (749.57 lbs.) |
| Length | 4610 mm (181.5 in.) |
| Width | 1836 mm (72.28 in.) |
| Height | 1786 mm (70.31 in.) |
| Wheelbase | 2690 mm (105.91 in.) |
| Front track | 1511 mm (59.49 in.) |
| Rear (Back) track | 1511 mm (59.49 in.) |
| Front overhang | 815 mm (32.09 in.) |
| Rear overhang | 1105 mm (43.5 in.) |
| Ride height (ground clearance) | 221 mm (8.7 in.) |
| Drag coefficient (Cd) | 0.45 |
| Minimum turning circle (turning diameter) | 11.4 m (37.4 ft.) |
| Approach angle | 36.7° |
| Departure angle | 28.6° |
| Ramp-over (brakeover) angle | 22.6° |
| 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 | 5 gears, automatic transmission |
| Front suspension | Coil spring, Rigid axle suspension, Transverse stabilizer |
| Rear suspension | Rigid axle suspension, Transverse stabilizer, Trailing arm, Coil spring |
| Front brakes | Ventilated discs, 305 mm |
| Rear brakes | Disc, 305 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 245/70 R16; 235/65 R17 |
| Wheel rims size | 7J x 16; 7.5J x 17 |
Powertrain & Engine Architecture
The heart of this Grand Cherokee variant was the 4.7-liter V8 engine, internally designated as the EVA engine. This engine was a significant departure from the older 4.0L inline-six, offering substantially more power and torque. The 4.7L V8 featured a cast iron block with aluminum cylinder heads, a configuration chosen for its balance of durability and weight. It utilized a single overhead camshaft (SOHC) design with two valves per cylinder. Fuel delivery was handled by a multi-port fuel injection system, providing precise fuel metering for optimal combustion. The engine produced 235 horsepower at 4800 rpm and 400 Nm (295 lb-ft) of torque at 3200 rpm. The four-speed automatic transmission (42RE) was specifically tuned to handle the V8’s torque output and provide smooth shifts. This transmission was known for its robustness, but also for its relatively conservative gear ratios, prioritizing fuel economy and comfort over outright acceleration.
Driving Characteristics
The 4.7L V8 with the four-speed automatic delivered a comfortable and capable driving experience. While not a performance-oriented setup, the engine provided ample power for everyday driving and towing. Acceleration was adequate, but not particularly brisk, with a 0-60 mph time estimated around 8-9 seconds. The automatic transmission’s gear ratios were spaced to prioritize fuel efficiency and smooth cruising, rather than aggressive downshifts. Compared to the manual transmission versions of the 4.7L, the automatic offered less driver engagement but greater convenience. The 4×4 system, Quadra-Trac II, provided excellent traction in various conditions, making it a capable off-road vehicle. However, the weight of the vehicle and the conservative tuning of the transmission meant that it wasn’t as nimble or responsive as lighter SUVs.
Equipment & Trim Levels
The 4.7L V8 model typically came standard with features like air conditioning, power windows and locks, cruise control, and an upgraded audio system. Leather upholstery, heated seats, a sunroof, and premium sound systems were often available as options. The Laredo trim was the most common entry point for the 4.7L engine, offering a good balance of features and affordability. Limited trims added more luxury features, such as leather interiors and upgraded wheels. The Overland trim represented the top of the line, with even more premium amenities and a more refined interior.
Chassis & Braking
The WJ Grand Cherokee utilized a body-on-frame construction, providing a robust and durable platform. The front suspension featured coil springs and a rigid axle with a transverse stabilizer bar. The rear suspension also employed a rigid axle with coil springs and a transverse stabilizer bar, along with trailing arms. Braking duties were handled by ventilated discs at the front and solid discs at the rear. An Anti-lock Braking System (ABS) was standard, enhancing safety and control during hard braking. The suspension was tuned for a balance of on-road comfort and off-road capability, providing a reasonably smooth ride on paved surfaces while still offering sufficient articulation for tackling rough terrain.
Market Reception & Comparison
The 4.7L V8 Grand Cherokee was generally well-received by critics and consumers. It offered a significant upgrade in power and refinement compared to the base V6 model. However, its fuel economy was a common criticism, averaging around 17 mpg in combined driving. Compared to the 4.0L inline-six, the V8 offered more power but less fuel efficiency. The V8 also had a reputation for being slightly more prone to maintenance issues, particularly related to the cooling system and exhaust manifolds. Despite these drawbacks, the 4.7L V8 remained a popular choice for buyers who prioritized power and towing capacity.
Legacy
The 4.7L V8 engine, while not without its flaws, proved to be a relatively durable and reliable powertrain when properly maintained. Today, the 2003-2004 facelifted WJ Grand Cherokee with the 4.7L V8 remains a popular choice in the used car market, particularly among those seeking a capable and affordable SUV. Common maintenance items include checking for coolant leaks, addressing potential exhaust manifold cracks, and ensuring the transmission fluid is regularly serviced. The WJ generation Grand Cherokee, and specifically the 4.7L V8 variant, holds a place in automotive history as a capable and iconic American SUV that bridged the gap between rugged off-roaders and more refined family vehicles.
