Infiniti G20 1999-2002 Drivetrain Specifications
Explore the detailed drivetrain specifications for the 1999-2002 Infiniti G20, including engine, transmission, and differential details. This guide is essential for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the drivetrain of the 1999-2002 Infiniti G20. It is designed to assist enthusiasts, mechanics, and owners in understanding the vehicle's drivetrain components, performance, and maintenance. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about the engine, transmission, differential, and other drivetrain-related systems.
How to Use
Use the search bar to enter keywords related to the drivetrain, such as 'transmission type' or 'torque specifications'. Results will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Engine Type
2.0L SR20DE inline-4
Horsepower
140 HP @ 6400 RPM
Torque
132 lb-ft @ 4800 RPM
Transmission
5-speed manual / 4-speed auto
Final Drive Ratio
4.083 (manual), 4.067 (auto)
Available Specifications
Engine Specifications
This section covers the engine details of the 1999-2002 Infiniti G20, including its configuration, displacement, and power output. Learn about the engine's design and performance characteristics that contribute to the vehicle's drivetrain efficiency.
Engine Specifications
This section covers the engine details of the 1999-2002 Infiniti G20, including its configuration, displacement, and power output. Learn about the engine's design and performance characteristics that contribute to the vehicle's drivetrain efficiency.
Engine Type and Configuration
- 2.0L SR20DE inline-4 engine
- Dual overhead camshaft (DOHC) design
- 16-valve configuration
- Naturally aspirated
- Aluminum alloy block and head
- Electronic fuel injection system
Performance Specifications
- 140 horsepower @ 6400 RPM
- 132 lb-ft of torque @ 4800 RPM
- Compression ratio of 9.5:1
- Redline at 7000 RPM
- Equipped with variable valve timing (VVT)
- EPA-estimated fuel economy: 22 city / 28 highway MPG
Transmission System
Explore the transmission options available for the Infiniti G20, including manual and automatic variants. This section provides insights into gear ratios, shifting mechanisms, and overall transmission performance.
Transmission System
Explore the transmission options available for the Infiniti G20, including manual and automatic variants. This section provides insights into gear ratios, shifting mechanisms, and overall transmission performance.
Transmission Types
- 5-speed manual transmission (standard)
- 4-speed automatic transmission (optional)
- Front-wheel drive configuration
- Hydraulic clutch system (manual)
- Electronic control unit (automatic)
Gear Ratios
- 1st gear: 3.321
- 2nd gear: 1.902
- 3rd gear: 1.308
- 4th gear: 0.969
- 5th gear: 0.759 (manual)
- Reverse gear: 3.382
Differential and Drivetrain
This section focuses on the differential and drivetrain components, including the final drive ratio and how power is distributed to the wheels. Understand the mechanics behind the G20's smooth and responsive handling.
Differential and Drivetrain
This section focuses on the differential and drivetrain components, including the final drive ratio and how power is distributed to the wheels. Understand the mechanics behind the G20's smooth and responsive handling.
Differential Specifications
- Open differential system
- Final drive ratio: 4.083 (manual), 4.067 (automatic)
- Limited-slip differential not available
- Differential fluid capacity: 1.4 quarts
- Sealed unit requiring periodic maintenance
Drivetrain Components
- Front-wheel drive layout
- Equal-length half-shafts
- CV joints for smooth power delivery
- Lightweight driveshaft design
- Reinforced mounting points for durability
Search Specifications
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Component Specifications
Overview
- Type
- Front-engine, front-wheel drive
- Configuration
- Transverse engine layout
- Platform
- Primera P11 platform
- Material
- Aluminum and steel construction
- Location
- Front-mounted drivetrain assembly
Dimensions
- Transmission Length
- 22.5 in (571.5 mm)
- Axle Width
- 58.7 in (1491 mm)
- Drive Shaft Diameter
- 1.5 in (38.1 mm)
- Differential Gear Ratio
- 4.083:1
- Transmission Weight
- 125 lbs (56.7 kg)
- Engine Mount Spacing
- 18.3 in (465 mm)
- Wheelbase
- 102.4 in (2601 mm)
Materials
- Transmission Housing
- Aluminum alloy
- Drive Shaft
- High-strength steel
- Differential Gears
- Case-hardened steel
- Engine Mounts
- Rubber and steel composite
- Cv Joints
- Forged steel with PTFE lining
Features
- Transmission
-
- 4-speed automatic with overdrive
- Manual shift mode
- Electronic shift control
- Torque converter lock-up
- Differential
-
- Open differential
- Viscous limited-slip
- Sealed lubrication system
- Drive Shaft
-
- Balanced for high-speed operation
- Corrosion-resistant coating
- Integrated CV joints
- Engine Mounts
-
- Hydraulic damping
- Vibration isolation
- Heat-resistant design
- Suspension integration
-
- Independent MacPherson strut front
- Multi-link rear suspension
- Stabilizer bar integration
Safety Features
- Structural integrity
-
- Crash-resistant transmission tunnel
- Reinforced engine mounts
- Electronic Systems
-
- Traction control system
- Anti-lock braking system integration
- Mechanical Fail-Safes
-
- Transmission overheat protection
- Differential temperature sensor
Comfort Features
- Noise Reduction
-
- Acoustic dampening materials
- Precision-balanced components
- Vibration Control
-
- Hydraulic engine mounts
- Rubber-isolated subframe
- Shift Quality
-
- Smooth automatic shifting
- Manual mode responsiveness
Accessories
- Performance
-
- Limited-slip differential
- Short-throw shifter
- Performance engine mounts
- Maintenance
-
- Transmission fluid dipstick
- Differential drain plug
- CV joint grease fittings
- Protection
-
- Transmission skid plate
- Drive shaft loop
- Heat shielding
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Transmission fluid change
- Differential oil replacement
- CV joint inspection
- Drive shaft balance check
- Engine mount inspection
- Maintenance Notes
-
- Use only Nissan Matic-D transmission fluid
- Inspect CV boots for cracks regularly
- Check differential breather for blockages
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and differential
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Perforation only
- Emissions
- Miles: 50,000Years: 4Coverage: Catalytic converter and sensors
Production Details
- Manufacturer
- Nissan Motor Corporation
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality Control
- Testing: High-speed balance testing, Thermal cycling, Durability simulationsinspection: X-ray weld inspection, Dimensional accuracy checks, Surface finish analysis
- Sustainability Practices
-
- Recycled aluminum usage
- Closed-loop coolant system
- Waste reduction initiatives
- Production Metrics
- Units Per Day: 120Defect Rate: 0.02%Energy Usage: 15 kWh per unit
Service Information for drivetrain Service
Maintenance and service requirements specific to the drivetrain system
- Transmission fluid and filter replacement
- Differential oil change
- CV joint and boot inspection
- Drive shaft balance check
- Engine mount condition assessment
Use only manufacturer-approved fluids and lubricants
- Transmission flush and refill
- Differential seal inspection
- CV joint lubrication
- Drive shaft U-joint inspection
- Transmission mount replacement
Special tools required for transmission service
- Complete transmission overhaul
- Differential bearing replacement
- Drive shaft replacement
- CV joint replacement
- Complete drivetrain alignment
Requires specialized equipment and trained technicians
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications for the 1999-2002 Infiniti G20 drivetrain?
What are the technical specifications for the 1999-2002 Infiniti G20 drivetrain?
The 1999-2002 Infiniti G20 features a front-engine, front-wheel-drive (FWD) layout. It is powered by a 2.0L SR20DE inline-4 engine, producing 140-145 horsepower and 132-137 lb-ft of torque. The drivetrain includes a 5-speed manual or 4-speed automatic transmission. The final drive ratio is 4.083:1. This setup is compatible with OEM or aftermarket parts designed for the SR20DE engine and FWD configuration.
Q2 What maintenance is required for the Infiniti G20 drivetrain?
What maintenance is required for the Infiniti G20 drivetrain?
Regular maintenance for the Infiniti G20 drivetrain includes checking and replacing transmission fluid every 30,000-60,000 miles, inspecting CV joints and axles for wear, and ensuring proper lubrication of drivetrain components. The timing belt should be replaced every 60,000-100,000 miles. Regularly inspect the clutch (manual transmission) or torque converter (automatic) for optimal performance and longevity.
Q3 How do I replace the drivetrain components on a 1999-2002 Infiniti G20?
How do I replace the drivetrain components on a 1999-2002 Infiniti G20?
To replace drivetrain components, first, secure the vehicle on a lift or jack stands. Remove the wheels and disconnect the CV axles from the hubs and transmission. Drain the transmission fluid and remove the transmission mount bolts. Carefully lower the transmission and replace the clutch, flywheel, or torque converter as needed. Reassemble in reverse order, ensuring proper torque specifications for all bolts.
Q4 What are common drivetrain issues and how can I troubleshoot them?
What are common drivetrain issues and how can I troubleshoot them?
Common issues include transmission slipping, CV joint noise, and axle vibration. For transmission slipping, check fluid levels and condition. CV joint noise often indicates worn joints, requiring replacement. Axle vibration may result from imbalanced or damaged axles. Use a diagnostic scan tool to check for error codes and inspect drivetrain components for visible damage or wear.
Q5 How can I optimize the performance of my Infiniti G20 drivetrain?
How can I optimize the performance of my Infiniti G20 drivetrain?
To optimize performance, upgrade to high-performance transmission fluid and synthetic lubricants. Install lightweight flywheels and performance clutches for manual transmissions. Ensure proper alignment and balance of drivetrain components. Consider aftermarket performance axles and CV joints for improved durability. Regularly inspect and maintain the drivetrain to prevent performance degradation.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1999-2002 Infiniti G20 Service Manual
Coming SoonComprehensive guide covering drivetrain maintenance, repair, and specifications for the 1999-2002 Infiniti G20.
Infiniti G20 Technical Service Bulletin
Coming SoonOfficial technical updates and fixes for common drivetrain issues in the 1999-2002 Infiniti G20.
Infiniti G20 Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket drivetrain parts for the 1999-2002 Infiniti G20.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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