Infiniti G20: A Comprehensive Buyer's Guide
The Infiniti G20 is a front-wheel-drive, compact executive car produced by Nissan's luxury division, Infiniti, from 1990 to 2002. Aimed at competing with European luxury sedans like the BMW 3 Series and Mercedes-Benz C-Class, the G20 offered a blend of Japanese reliability, refined handling, and a respectable level of luxury at a more accessible price point. While not a sales success compared to its rivals, the G20 has developed a loyal following due to its durable engine, nimble chassis, and overall solid engineering. This guide will provide a comprehensive overview of the G20, covering its history, generations, common issues, driving experience, and buying advice.
Generations
First Generation (P10, 1990-1996)
- Years: 1990-1996
- Engine: 2.0L SR20DE inline-4 (140 hp initially, later 145 hp)
- Transmission: 5-speed manual or 4-speed automatic
- Key Changes: Introduced as Infiniti's entry-level model. The P10 focused on offering a sporty driving experience with a well-tuned suspension and a responsive engine. Minor styling updates occurred throughout its production run. 1994 saw a slight horsepower increase and minor interior enhancements.
- Notable Features: Standard features included leather seats, power windows and locks, air conditioning, and a premium sound system. The G20 offered a more luxurious interior than many of its contemporary competitors in the compact sedan segment.
Second Generation (P11, 1999-2002)
- Years: 1999-2002
- Engine: 2.0L SR20DE inline-4 (140 hp)
- Transmission: 5-speed manual or 4-speed automatic
- Key Changes: The P11 featured a redesigned exterior and interior. The suspension was retuned for a more comfortable ride, while retaining respectable handling. The P11 aimed to appeal to a broader audience by offering a balance of sportiness and luxury.
- G20t (Touring Model): Available from 2000-2002, the G20t featured a sport-tuned suspension, BBS wheels, a rear spoiler, and a limited-slip differential (LSD) in the 5-speed manual version, making it the most desirable G20 for enthusiasts.
- Notable Features: Improvements to interior materials, a more modern dashboard design, and updated safety features were introduced.
Reliability & Common Issues
The Infiniti G20, particularly models with the SR20DE engine, is generally considered a reliable vehicle when properly maintained. However, like any older car, certain issues are more common than others.
Engine (SR20DE)
- Timing Chain: While the SR20DE has a timing chain (instead of a belt), it's still a good idea to listen for excessive rattling at start-up, which could indicate wear. Although less frequent than belt replacements, chains can stretch or their tensioners can fail over time, especially in higher mileage examples.
- Oil Leaks: Valve cover gaskets and rear main seals are prone to leaking as the cars age. Check for oil drips on the ground and oil buildup around the engine.
- Distributor Issues: The distributor can develop problems, leading to misfires and difficulty starting. Replacing the distributor cap, rotor, and spark plugs regularly is recommended.
- Mass Air Flow Sensor (MAF): A faulty MAF sensor can cause poor fuel economy, rough idling, and a lack of power. Cleaning or replacing the sensor can resolve these issues.
Transmission
- Manual Transmission: Generally robust. However, synchro wear, especially in 2nd and 3rd gear, can occur on higher mileage cars, particularly if the transmission fluid hasn't been changed regularly. The limited-slip differential (LSD) in the G20t models should be inspected for proper functionality and excessive wear.
- Automatic Transmission: Service is essential. Neglecting fluid changes can lead to premature failure. Check for smooth shifting and any signs of slipping or hesitation.
Suspension & Brakes
- Suspension Components: Bushings, ball joints, and struts can wear out over time, affecting handling and ride quality. Listen for clunking noises from the suspension, especially over bumps.
- Brakes: Ensure the brakes are in good working order. Rotors may need resurfacing or replacement. Check the brake lines for rust and leaks.
Electrical
- Wiring: Aging wiring can become brittle and crack, leading to electrical issues. Check for frayed or damaged wires, especially in the engine bay.
- Power Windows/Locks: These can sometimes fail, often due to worn motors or faulty switches.
Other Common Issues
- Rust: Check for rust, especially in areas prone to corrosion, such as the wheel wells, rocker panels, and undercarriage. Cars from colder climates are more susceptible to rust.
- Interior Wear: Check the condition of the seats, dashboard, and carpets. Sun damage and general wear and tear are common in older vehicles.
Driving Experience
The Infiniti G20 provides a unique driving experience that blends sportiness and luxury. While not as powerful as some of its rivals, the G20's strengths lie in its nimble handling and responsive engine.
Pros:
- Handling: The G20 boasts a well-tuned suspension that provides excellent handling and road feel. It is a fun car to drive on twisty roads.
- Engine Responsiveness: The SR20DE engine is known for its smooth power delivery and willingness to rev.
- Refinement: The G20 offers a comfortable and refined interior, making it a pleasant car to drive on long trips.
- Reliability: With proper maintenance, the G20 can be a very reliable car.
Cons:
- Power: While the SR20DE is a good engine, it lacks the outright power of some of its competitors, especially in the later years with emissions restrictions.
- Fuel Economy: Fuel economy is decent but not exceptional for a car of this size and age.
- Parts Availability: Some parts, particularly those specific to the G20 and not shared with other Nissan models, can be difficult to find and may be more expensive.
- Age: Being an older car, expect to deal with age-related issues like worn suspension components, rust, and interior wear.
Buying Advice
If you're considering purchasing an Infiniti G20, here's some advice to help you make an informed decision:
Years to Look For:
- 2000-2002 G20t: The G20t models are the most desirable due to their sport-tuned suspension, BBS wheels, and limited-slip differential (LSD) in the 5-speed manual version. These offer the best driving experience.
- 1994-1996 P10: The later P10 models (1994-1996) received minor updates and improvements, making them slightly more refined than the earlier ones.
What to Avoid:
- Rust-Prone Examples: Avoid cars with significant rust damage, as repairing rust can be costly.
- Neglected Maintenance: Steer clear of cars that haven't been properly maintained, as they are more likely to have mechanical issues.
- Automatic Transmission without Service History: Be cautious of automatic transmission models without documented service history.
Inspection Points:
- Thorough Inspection: Have a mechanic inspect the car before you buy it.
- Engine: Check for oil leaks, listen for unusual noises, and ensure the engine runs smoothly.
- Transmission: Test drive the car and pay attention to the shifting. Check for slipping or hesitation in the automatic transmission, and synchro issues in the manual.
- Suspension: Listen for clunking noises from the suspension and check for worn components.
- Rust: Inspect the car for rust, especially in the wheel wells, rocker panels, and undercarriage.
- Interior: Check the condition of the seats, dashboard, and carpets.
- Title: Ensure the car has a clean title and that there are no outstanding liens.
Pricing:
The price of a G20 will vary depending on its condition, mileage, and location. Expect to pay more for well-maintained G20t models. Research recent sales of similar G20s to get an idea of the market value.
The Infiniti G20, while an older car, can be a rewarding and enjoyable vehicle to own, particularly for enthusiasts who appreciate its sporty handling and unique character. By following this guide and conducting a thorough inspection, you can find a well-maintained G20 that will provide years of reliable service.
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