Infiniti I30 2000-2004 4R01 Transmission Specifications
This document provides detailed technical specifications for the 4R01 transmission used in the 2000-2004 Infiniti I30. It includes information on gear ratios, torque capacity, fluid requirements, and maintenance intervals. These specifications are essential for mechanics, enthusiasts, and owners looking to understand the transmission's performance, ensure proper maintenance, or diagnose issues. The data is sourced from official service manuals and technical guides, offering reliable and accurate insights. Whether you're performing routine maintenance, planning upgrades, or troubleshooting, this resource serves as a comprehensive reference to optimize the transmission's longevity and performance.
Overview Specifications
This document provides detailed specifications and technical information about the 4R01 transmission used in the 2000-2004 Infiniti I30. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance characteristics. Use this guide to navigate through sections, search for specific details, and reference key specifications quickly.
How to Use
Use the search functionality to locate specific terms or phrases within the document. Enter keywords related to the 4R01 transmission, such as 'gear ratios' or 'fluid capacity,' to find relevant information quickly.
Navigate through the document using the section titles and subsections. Each major section is organized into detailed subsections, making it easy to find specific technical details about the 4R01 transmission.
Key Specifications
Transmission Type
4-speed automatic
Gear Ratios
2.785:1 to 0.694:1
Fluid Capacity
7.4 quarts
Torque Capacity
250 lb-ft
Final Drive Ratio
4.083:1
Available Specifications
Transmission Design
This section covers the design and engineering aspects of the 4R01 transmission, including its construction, materials, and layout. Learn about the transmission's architecture and how it integrates with the Infiniti I30's drivetrain.
Transmission Design
This section covers the design and engineering aspects of the 4R01 transmission, including its construction, materials, and layout. Learn about the transmission's architecture and how it integrates with the Infiniti I30's drivetrain.
Construction and Materials
- Aluminum alloy casing for reduced weight
- Four-speed automatic transmission design
- High-strength steel gears for durability
- Sealed unit to prevent fluid leaks
- Compact design for efficient space utilization
- Integrated torque converter for smooth power delivery
Layout and Integration
- Front-wheel drive configuration
- Direct connection to the VQ30DE engine
- Electronically controlled shift system
- Mounting points designed for stability
- Compatibility with Infiniti I30 chassis
- Optimized for balanced weight distribution
Performance Specifications
Explore the performance characteristics of the 4R01 transmission, including gear ratios, shift points, and torque handling capabilities. This section provides insights into how the transmission enhances the driving experience.
Performance Specifications
Explore the performance characteristics of the 4R01 transmission, including gear ratios, shift points, and torque handling capabilities. This section provides insights into how the transmission enhances the driving experience.
Gear Ratios
- 1st gear: 2.785:1
- 2nd gear: 1.545:1
- 3rd gear: 1.000:1
- 4th gear: 0.694:1
- Reverse gear: 2.272:1
- Final drive ratio: 4.083:1
Shift Points and Torque
- Smooth shift points for optimal acceleration
- Maximum torque capacity: 250 lb-ft
- Adaptive shift logic for varying driving conditions
- Quick downshifts for improved responsiveness
- Designed for high-revving VQ30DE engine
- Efficient power transfer with minimal loss
Maintenance and Service
This section provides guidelines for maintaining and servicing the 4R01 transmission. Learn about fluid requirements, inspection intervals, and common troubleshooting tips to ensure longevity and reliability.
Maintenance and Service
This section provides guidelines for maintaining and servicing the 4R01 transmission. Learn about fluid requirements, inspection intervals, and common troubleshooting tips to ensure longevity and reliability.
Fluid Requirements
- Recommended fluid: Nissan Matic-D ATF
- Fluid capacity: 7.4 quarts (with torque converter)
- Regular fluid changes every 30,000 miles
- Use of synthetic fluid for extended life
- Fluid level check procedure outlined in manual
- Avoid mixing incompatible transmission fluids
Inspection and Troubleshooting
- Inspect for leaks during routine maintenance
- Check for abnormal noises during operation
- Monitor shift quality for signs of wear
- Diagnose error codes using OBD-II scanner
- Replace worn components promptly
- Consult service manual for detailed procedures
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 4-speed
- Platform
- FF-L (Front-engine, Front-wheel-drive, Longitudinal)
- Material
- Aluminum alloy casing
- Location
- Front of vehicle, integrated with engine
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 22.8 inches (579 mm)
- Height
- 18.3 inches (465 mm)
- Weight
- 165 lbs (75 kg)
- input Shaft Diameter
- 1.2 inches (30.5 mm)
- Output Shaft Diameter
- 1.1 inches (28 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
- Sensors
- Thermoplastic housing
Features
- Shifting
-
- Electronic shift control
- Adaptive shift logic
- Manual shift mode
- Smooth shift transitions
- Cooling
-
- Integrated transmission cooler
- Fluid temperature sensor
- High-capacity fluid pump
- Durability
-
- Reinforced gear sets
- High-strength input shaft
- Robust clutch materials
- integration
-
- ECU-controlled shifting
- Compatible with traction control
- Seamless engine integration
- Performance
-
- Optimized gear ratios
- Low friction bearings
- Efficient torque converter
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Sensors
-
- Transmission fluid temperature sensor
- Input/output speed sensors
- Mechanical
-
- Reinforced casing
- Shear-resistant gears
Comfort Features
- Noise Reduction
-
- Precision gear machining
- Vibration dampening mounts
- Smoothness
-
- Adaptive shift logic
- Torque converter lockup
- Convenience
-
- Automatic shifting
- Manual override
- Climate
-
- Integrated cooling system
- Temperature monitoring
Accessories
- Fluids
-
- ATF Matic-D
- Synthetic transmission fluid
- Fluid conditioner
- Tools
-
- Transmission jack adapter
- Fluid pump
- Diagnostic scanner
- Upgrades
-
- Performance shift kit
- Enhanced cooler
- Heavy-duty clutch packs
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Sensor calibration
- Shift linkage adjustment
- Cooler line inspection
- Maintenance Notes
- Use only recommended fluids to ensure longevity and performance.
Warranty
- Basic
- Miles: 60,000Years: 5Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 7Coverage: Transmission components
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Casing and seals
- Extended
- Miles: 120,000Years: 10Coverage: Optional extended coverage
- Warranty Terms
- Warranty void if improper fluids or unauthorized modifications are used.
Production Details
- Manufacturer
- Jatco Ltd.
- Manufacturing Process
-
- Precision CNC machining
- Heat treatment of gears
- Automated assembly
- Quality Control
- Testing: Durability testing, Shift performance testing, Leak testingStandards: ISO 9001 certified, JATCO internal standards
- Sustainability
-
- Recyclable materials
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.02%Lead Time: 4 weeks
Service Information for 4r01 transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Inspect seals and gaskets
- Check fluid levels
- Test shift performance
- Inspect cooler lines
Use only manufacturer-recommended fluids.
- Replace transmission filter
- Inspect clutch packs
- Calibrate sensors
- Check torque converter
- Test electronic controls
Special tools required for sensor calibration.
- Overhaul transmission
- Replace worn components
- Test all electronic systems
- Inspect and clean cooler
- Perform full diagnostic scan
Major service requires specialized equipment and expertise.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 4r01 transmission compatible with other Infiniti models?
Is the 4r01 transmission compatible with other Infiniti models?
The 4r01 transmission is specifically designed for the 2000-2004 Infiniti I30. While it shares similarities with other Nissan/Infiniti transmissions, it is not directly compatible with other models without significant modifications. Always verify compatibility using the vehicle's VIN and consult a professional before attempting any cross-model installations.
Q2 What are the maintenance requirements for the 4r01 transmission?
What are the maintenance requirements for the 4r01 transmission?
The 4r01 transmission requires regular maintenance to ensure longevity. This includes fluid changes every 30,000-60,000 miles, depending on driving conditions. Inspect for leaks, replace the filter during fluid changes, and ensure the transmission is properly cooled. Avoid overheating and excessive towing to prevent premature wear.
Q3 How do I replace the 4r01 transmission in my Infiniti I30?
How do I replace the 4r01 transmission in my Infiniti I30?
Replacing the 4r01 transmission involves several steps: disconnect the battery, remove the driveshaft, drain the transmission fluid, detach the transmission mounts, and disconnect wiring and linkages. Lower the transmission using a jack and install the new unit in reverse order. Ensure proper alignment and torque specifications. Professional assistance is recommended for this complex task.
Q4 What should I do if my 4r01 transmission is slipping or shifting poorly?
What should I do if my 4r01 transmission is slipping or shifting poorly?
If your 4r01 transmission is slipping or shifting poorly, first check the fluid level and condition. Low or dirty fluid can cause these issues. Inspect for leaks, damaged wiring, or faulty sensors. If the problem persists, perform a diagnostic scan to identify error codes. Common solutions include fluid replacement, sensor repairs, or solenoid replacement.
Q5 How can I optimize the performance of my 4r01 transmission?
How can I optimize the performance of my 4r01 transmission?
To optimize the 4r01 transmission, use high-quality transmission fluid and ensure proper fluid levels. Regularly inspect and replace the filter. Avoid aggressive driving and excessive towing. Consider installing an auxiliary cooler for heavy-duty use. Periodic diagnostic scans can help identify and address minor issues before they escalate.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Infiniti I30 Service Manual (2000-2004)
Coming SoonComprehensive service manual covering the 4r01 transmission, including maintenance, repair, and troubleshooting procedures.
Technical Service Bulletin for 4r01 Transmission
Coming SoonLatest updates and fixes for common issues related to the 4r01 transmission in the Infiniti I30.
Infiniti I30 Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the 4r01 transmission and other components of the Infiniti I30.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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