The Jeep Grand Cherokee (ZJ), produced from 1993 to 1998, represented a significant step forward for the American automaker, moving the Cherokee nameplate into a more luxurious and capable mid-size SUV segment. The 4.0i variant, equipped with the 4.0-liter inline-six engine and a four-speed automatic transmission, was a mainstay of the ZJ lineup during the 1993 and 1994 model years. This configuration aimed to provide a balance of power, refinement, and affordability, appealing to buyers seeking a comfortable and capable SUV for both on-road driving and light off-road adventures. It occupied a middle ground in the ZJ range, positioned below the more powerful V8 models and above the base 2.5-liter four-cylinder option.
Technical Specifications
| Brand | Jeep |
| Model | Grand Cherokee |
| Generation | Grand Cherokee I (ZJ) |
| Type (Engine) | 4.0i (193 Hp) Automatic |
| Start of production | 1993 |
| End of production | 1994 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| 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 consumption (combined) | 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8.3 kg/Hp, 120.5 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 190.4 Nm/tonne |
| Power | 193 Hp @ 4750 rpm |
| Power per litre | 48.8 Hp/l |
| Torque | 305 Nm @ 4000 rpm (224.96 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ERH |
| Engine displacement | 3956 cm3 (241.41 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 98.4 mm (3.87 in.) |
| Piston Stroke | 86.7 mm (3.41 in.) |
| Compression ratio | 8.8:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Kerb Weight | 1602 kg (3531.81 lbs.) |
| Fuel tank capacity | 87 l (22.98 US gal | 19.14 UK gal) |
| Length | 4489 mm (176.73 in.) |
| Width | 1758 mm (69.21 in.) |
| Height | 1648 mm (64.88 in.) |
| Wheelbase | 2690 mm (105.91 in.) |
| Front track | 1473 mm (57.99 in.) |
| Rear track | 1473 mm (57.99 in.) |
| Ride height (ground clearance) | 208 mm (8.19 in.) |
| Drag coefficient (Cd) | 0.45 |
| Minimum turning circle | 11.0 m (36.09 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 4 |
| Gearbox type | Automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/75 R15 |
| Wheel rims size | 15 |
Powertrain & Engine Architecture
The heart of the 4.0i Grand Cherokee was the 4.0-liter (3956 cc) AMC inline-six engine, designated the ERH code. This engine, a descendant of designs dating back to the 1960s, was known for its durability and smooth power delivery. It featured a cast iron block and cylinder head, with a two-valve-per-cylinder overhead valve (OHV) configuration. Fuel delivery was handled by a multi-port fuel injection system, contributing to improved efficiency and reduced emissions compared to earlier carbureted versions. The engine produced 193 horsepower at 4750 rpm and 225 lb-ft of torque at 4000 rpm. The four-speed automatic transmission, a Chrysler-sourced 42RE unit, was specifically chosen for its robustness and ability to handle the engine’s torque output. This transmission featured electronic control for smoother shifting and improved fuel economy.
Driving Characteristics
The 4.0i Grand Cherokee offered a comfortable and capable driving experience. While not a performance-oriented vehicle, the 4.0-liter engine provided adequate power for everyday driving and highway cruising. Acceleration was respectable, though noticeably slower than the V8-powered models. The automatic transmission, while smooth, could sometimes feel hesitant during quick acceleration, particularly when downshifting. The gear ratios were optimized for fuel economy and towing capacity rather than outright speed. Compared to the manual transmission versions, the automatic offered greater convenience, especially in city traffic, but at the expense of some driver engagement and fuel efficiency. The rear-wheel-drive configuration provided a more traditional SUV feel, while the available four-wheel-drive system enhanced traction in inclement weather and off-road conditions.
Equipment & Trim Levels
The 4.0i Grand Cherokee typically came standard with features such as air conditioning, power windows and locks, and an AM/FM stereo. Higher trim levels, like the Laredo and Limited, added features such as upgraded upholstery (cloth or leather), a premium sound system, alloy wheels, and a sunroof. Optional extras included a tow package, heavy-duty suspension, and a rear entertainment system. The interior design was functional and comfortable, with a focus on durability. The dashboard layout was straightforward, with easy-to-read gauges and well-placed controls.
Chassis & Braking
The ZJ Grand Cherokee utilized a body-on-frame construction, providing a robust and durable platform. The suspension consisted of a traditional setup with coil springs, shock absorbers, and stabilizer bars. The front suspension featured independent upper and lower control arms, while the rear suspension employed a solid axle with leaf springs. Brakes were ventilated discs on all four wheels, providing adequate stopping power for the vehicle’s weight. An anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The rear drum brakes were standard on base models, while ventilated discs were available on higher trims.
Market Reception & Comparison
The 4.0i Grand Cherokee was generally well-received by critics and consumers alike. It was praised for its comfortable ride, spacious interior, and capable off-road performance. However, some reviewers noted that the 4.0-liter engine could feel underpowered when fully loaded or towing a trailer. Compared to the V8 models, the 4.0i offered better fuel economy but less overall performance. The 4.0i was also a more affordable option, making it attractive to budget-conscious buyers. In terms of reliability, the 4.0-liter engine and 42RE transmission proved to be relatively durable, although regular maintenance was essential to prevent issues.
Legacy
The 4.0i Grand Cherokee (ZJ) remains a popular choice among used car buyers today, particularly those seeking a reliable and affordable SUV. The 4.0-liter inline-six engine is known for its longevity and relatively simple maintenance requirements. While finding well-maintained examples can be challenging, these vehicles often offer a good value for the money. Common issues include rust, particularly in areas with harsh winters, and wear and tear on suspension components. The 42RE automatic transmission can also experience problems if not properly maintained. Despite these potential issues, the 4.0i Grand Cherokee continues to be appreciated for its classic SUV charm and enduring capability.
