The Hyundai Sonata II (Y2), specifically the 2.4-liter variant with an automatic transmission, represented a significant step forward for the South Korean automaker in the late 1980s and early 1990s. Produced between 1988 and 1991, this model aimed to establish Hyundai as a credible competitor in the mid-size sedan segment, particularly in markets outside of Korea. The Y2 generation, building upon the original Sonata, offered improved refinement and a more modern design. The 2.4L automatic configuration was positioned as a comfortable, practical option for buyers prioritizing ease of use over outright performance, slotting between the base models and potentially any future higher-performance trims.
Technical Specifications
| Brand | Hyundai |
| Model | Sonata |
| Generation | Sonata II (Y2) |
| Type (Engine) | 2.4 (117 Hp) Automatic |
| Start of production | 1988 |
| End of production | 1991 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (combined) | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg, 10.5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 190 km/h (118.06 mph) |
| Weight-to-power ratio | 10.8 kg/Hp, 92.9 Hp/tonne |
| Weight-to-torque ratio | 6.5 kg/Nm, 153.2 Nm/tonne |
| Power | 117 Hp @ 4500 rpm |
| Power per litre | 49.8 Hp/l |
| Torque | 193 Nm @ 3500 rpm (142.35 lb.-ft. @ 3500 rpm) |
| Engine layout | Front, Transverse |
| Engine displacement | 2351 cm3 (143.47 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 86.5 mm (3.41 in.) |
| Piston Stroke | 100 mm (3.94 in.) |
| Compression ratio | 8.6:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHC |
| Kerb Weight | 1260 kg (2777.82 lbs.) |
| Trunk (boot) space – minimum | 473 l (16.7 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4680 mm (184.25 in.) |
| Width | 1750 mm (68.9 in.) |
| Height | 1410 mm (55.51 in.) |
| Wheelbase | 2650 mm (104.33 in.) |
| Front track | 1461 mm (57.52 in.) |
| Rear (Back) track | 1440 mm (56.69 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 185/70 R14 |
| Wheel rims size | 14 |
Powertrain & Engine Architecture
The heart of the Sonata II 2.4 Automatic is the Mitsubishi-sourced 4G64 inline-four cylinder engine. Displacing 2.4 liters (2351 cc), this engine featured a cast iron block and an aluminum cylinder head. It utilized a multi-port fuel injection system, a relatively modern feature for the time, contributing to improved fuel efficiency and smoother operation compared to carbureted engines. The engine employed an overhead camshaft (OHC) valvetrain with two valves per cylinder. The 4G64 produced 117 horsepower at 4500 rpm and 193 Nm (142.35 lb-ft) of torque at 3500 rpm. The engine’s relatively modest output was paired with a four-speed automatic transmission, designed for comfortable cruising rather than sporty acceleration. This transmission was a typical torque-converter automatic of the era, prioritizing smooth shifts over rapid gear changes.
Driving Characteristics
The Sonata II 2.4 Automatic offered a comfortable and predictable driving experience. The automatic transmission, while not particularly quick-shifting, provided smooth transitions between gears. Acceleration was adequate for everyday driving, but the 117 hp engine didn’t offer significant reserves of power for overtaking or climbing steep hills. Compared to a manual transmission version (if available in certain markets), the automatic would have felt noticeably slower. The gear ratios were tuned for fuel economy and relaxed cruising, rather than maximizing performance. The front-wheel-drive layout provided decent handling, but the suspension was tuned for comfort, resulting in some body roll during cornering.
Equipment & Trim Levels
The 2.4-liter automatic Sonata II typically came with a reasonable level of standard equipment for its price point. This included features like power steering, a basic audio system, cloth upholstery, and manual windows and locks. Air conditioning was often standard, but could have been an optional extra depending on the specific market. Higher trim levels, if offered, might have included features like upgraded audio systems, power windows and locks, and a sunroof. Interior materials were generally durable but not luxurious, reflecting the car’s positioning as an affordable mid-size sedan.
Chassis & Braking
The Sonata II utilized a front-wheel-drive chassis with an independent McPherson strut suspension in the front and a coil spring suspension in the rear. The front suspension incorporated an anti-roll bar to reduce body roll. Braking duties were handled by ventilated disc brakes in the front and drum brakes in the rear. An Anti-lock Braking System (ABS) was available, and likely standard on higher trim levels, enhancing safety by preventing wheel lockup during hard braking. The steering system was a rack-and-pinion setup with hydraulic power assistance, providing relatively light and precise steering feel.
Market Reception & Comparison
The Hyundai Sonata II 2.4 Automatic was generally well-received as a practical and affordable mid-size sedan. Critics praised its comfortable ride, spacious interior, and reasonable fuel economy (around 24.8 US mpg combined). However, it was often criticized for its lack of performance and somewhat bland styling. Compared to competitors like the Toyota Camry or Honda Accord, the Sonata II offered a lower price point but lacked the same level of refinement and brand recognition. The automatic transmission, while convenient, contributed to the car’s somewhat sluggish acceleration. The 2.4L engine offered a good balance between fuel economy and usability, making it a popular choice for families and commuters.
Legacy
The Hyundai Sonata II, and specifically the 2.4-liter automatic variant, played a crucial role in establishing Hyundai’s presence in the global automotive market. While not known for exceptional performance or groundbreaking technology, it offered a reliable and affordable transportation option. The 4G64 engine, while not without its quirks, proved to be reasonably durable with proper maintenance. Today, these cars are relatively rare and are often sought after by collectors and enthusiasts interested in early Hyundai models. The long-term reliability of the powertrain is generally considered good, although age and mileage will inevitably require maintenance and repairs. The Sonata II represents a pivotal moment in Hyundai’s history, marking its transition from a domestic manufacturer to a global automotive player.
