The Pontiac Grand Am Coupe (H) 2.4i 16V SE, produced from 1998 to 2002, represented a significant iteration of Pontiac’s popular compact coupe. Positioned as a mid-range offering within the broader Grand Am lineup, this variant aimed to balance affordability with a respectable level of performance and features. It was part of the H-body platform, shared with other GM vehicles like the Buick Skylark and Oldsmobile Achieva, and played a key role in Pontiac’s strategy to appeal to a younger, more style-conscious demographic in the North American market. The 2.4i SE trim, with its 152 horsepower engine and automatic transmission, was a common sight on American roads during its production run.
Technical Specifications
| Brand | Pontiac |
| Model | Grand AM |
| Generation | Grand AM Coupe (H) |
| Type (Engine) | 2.4 i 16V SE (152 Hp) |
| Start of production | 1998 |
| End of production | 2002 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 2 |
| Fuel consumption (urban) | 13 l/100 km (18.1 US mpg, 21.7 UK mpg, 7.7 km/l) |
| Fuel consumption (extra urban) | 7 l/100 km (33.6 US mpg, 40.4 UK mpg, 14.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 190 km/h (118.06 mph) |
| Weight-to-power ratio | 9.1 kg/Hp, 109.7 Hp/tonne |
| Weight-to-torque ratio | 6.6 kg/Nm, 151.6 Nm/tonne |
| Power | 152 Hp @ 5600 rpm |
| Power per litre | 63.5 Hp/l |
| Torque | 210 Nm @ 4400 rpm (154.89 lb.-ft. @ 4400 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | LD9 |
| Engine displacement | 2392 cm3 (145.97 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 90 mm (3.54 in.) |
| Piston Stroke | 94 mm (3.7 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 10.7 l (11.31 US qt | 9.41 UK qt) |
| Kerb Weight | 1385 kg (3053.4 lbs.) |
| Trunk (boot) space – minimum | 515 l (18.19 cu. ft.) |
| Fuel tank capacity | 57 l (15.06 US gal | 12.54 UK gal) |
| Length | 4730 mm (186.22 in.) |
| Width | 1790 mm (70.47 in.) |
| Height | 1400 mm (55.12 in.) |
| Wheelbase | 2718 mm (107.01 in.) |
| Front track | 1500 mm (59.06 in.) |
| Rear (Back) track | 1500 mm (59.06 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 | Spring Strut |
| Rear suspension | Spring Strut |
| 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 | 215/60 R15 |
Powertrain & Engine Architecture
The heart of the Grand Am 2.4i SE was the LD9 2.4-liter inline-four cylinder engine. This engine was a member of GM’s Ecotec family, known for its relatively lightweight construction and decent fuel efficiency. The LD9 featured a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its improved breathing and power output compared to older pushrod designs. Fuel delivery was handled by a multi-port fuel injection system, precisely metering fuel into each intake port. The engine produced 152 horsepower at 5600 rpm and 210 Nm (155 lb-ft) of torque at 4400 rpm. Paired with this engine was a four-speed automatic transmission, offering smooth, if not particularly sporty, shifts. This transmission was chosen to appeal to buyers prioritizing comfort and ease of use over outright performance.
Driving Characteristics
The 2.4i automatic Grand Am offered a comfortable, but not exhilarating, driving experience. Acceleration to 60 mph took around 8.6 seconds, which was adequate for everyday driving but lagged behind the performance of manual transmission models or those equipped with the optional 3.4-liter V6 engine. The automatic transmission’s gear ratios were tuned for fuel economy and smooth cruising, rather than aggressive acceleration. The engine felt reasonably responsive at lower speeds, providing sufficient power for merging onto highways and passing slower traffic. However, at higher speeds, the engine could feel strained, and the automatic transmission would often downshift to maintain momentum. The steering was light and easy, making it well-suited for city driving, but lacked the feedback desired by more enthusiastic drivers.
Equipment & Trim Levels
The SE trim level of the Grand Am Coupe offered a good balance of features. Standard equipment typically included air conditioning, power windows and locks, an AM/FM stereo with cassette player, and cloth upholstery. Optional extras included a CD player, upgraded sound system, power sunroof, and alloy wheels. The interior design was functional and straightforward, with a focus on ergonomics. The dashboard layout was clean and easy to navigate, and the seats provided adequate support for long drives. The SE trim generally featured a more refined interior appearance compared to the base model, with upgraded materials and trim accents.
Chassis & Braking
The Grand Am Coupe utilized a front-wheel-drive layout with independent front suspension and a twist-beam rear suspension. The front suspension employed coil springs and a strut design, while the rear suspension utilized coil springs and a semi-independent twist-beam axle. This setup provided a comfortable ride quality, but didn’t offer the same level of handling precision as more sophisticated suspension systems. Braking duties were handled by ventilated discs at the front and drum brakes at the rear. An anti-lock braking system (ABS) was standard, enhancing safety by preventing wheel lockup during hard braking. The steering system was a rack-and-pinion setup with hydraulic power assist, providing light and easy steering feel.
Market Reception & Comparison
The Grand Am 2.4i Automatic received mixed reviews from automotive critics. While praised for its comfortable ride and decent fuel economy (around 21 mpg city and 34 mpg highway), it was often criticized for its lack of performance and somewhat bland styling. Compared to the V6-powered Grand Am, the 2.4i felt noticeably slower and less engaging to drive. However, it offered a more affordable price point and better fuel efficiency, making it an attractive option for budget-conscious buyers. Compared to competitors like the Honda Civic Coupe and Toyota Celica, the Grand Am offered more interior space and a more comfortable ride, but lacked the same level of refinement and driving dynamics.
Legacy
The LD9 2.4-liter engine proved to be a relatively reliable powertrain, with many examples still on the road today. While not known for exceptional longevity, the engine is generally considered durable and relatively easy to maintain. Common issues include oil leaks and occasional sensor failures. The four-speed automatic transmission is also generally reliable, but may require servicing or rebuilding after high mileage. In the used car market, the Grand Am 2.4i SE is often seen as an affordable and practical transportation option. Its relatively low purchase price and decent fuel economy make it an attractive choice for first-time car buyers or those seeking a budget-friendly coupe. However, potential buyers should be aware of the car’s age and potential maintenance needs.
