Infiniti I30 1996-1999 4R01 Transmission Transmission Specifications
Infiniti I30 1996-1999

Infiniti I30 1996-1999 4R01 Transmission Specifications

This document provides detailed technical specifications for the 4R01 transmission used in the 1996-1999 Infiniti I30. It includes information on gear ratios, torque converter specifications, fluid capacity, 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 factory service manuals and technical guides, ensuring accuracy and reliability. Whether you're performing routine maintenance, troubleshooting, or planning upgrades, this resource offers valuable insights into the transmission's design and operation.

Updated

Overview Specifications

This document provides detailed technical specifications and operational information for the 4R01 transmission used in the 1996-1999 Infiniti I30. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's design, maintenance, and troubleshooting. Use this guide to navigate through sections, search for specific details, and access key specifications for quick reference.

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 quickly find relevant information.

Navigate through the document using the section titles and subsections. Each major section is organized by topic, such as 'Technical Specifications' or 'Maintenance Procedures,' with detailed subsections for easy access to specific details.

Key Specifications

Transmission Type

4-Speed Automatic

Gear Ratios

2.785:1 (1st)

Fluid Capacity

9.5 quarts

Torque Capacity

205 lb-ft

Fluid Type

Nissan Matic-D

Available Specifications

Technical Specifications

This section outlines the core technical details of the 4R01 transmission, including gear ratios, torque capacity, and fluid requirements. It is essential for understanding the transmission's performance capabilities and compatibility with the Infiniti I30.

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
Torque Capacity
  • Maximum Torque: 205 lb-ft
  • Torque Converter Lockup: Yes
  • Torque Converter Stall Speed: 2200 RPM
Fluid Requirements
  • Transmission Fluid Type: Nissan Matic-D
  • Fluid Capacity: 9.5 quarts (including torque converter)
  • Fluid Change Interval: 30,000 miles

Maintenance Procedures

This section provides step-by-step instructions for maintaining the 4R01 transmission, including fluid changes, filter replacement, and inspection guidelines. Proper maintenance ensures longevity and optimal performance.

Fluid Change Procedure
  • Warm up the transmission to operating temperature.
  • Remove the transmission drain plug and drain the fluid.
  • Replace the drain plug and refill with Nissan Matic-D fluid.
  • Check fluid level using the dipstick and adjust as needed.
Filter Replacement
  • Remove the transmission pan to access the filter.
  • Replace the old filter with a new OEM filter.
  • Clean the transmission pan and reinstall with a new gasket.
  • Refill with the specified transmission fluid.

Troubleshooting

This section covers common issues with the 4R01 transmission and provides diagnostic steps to identify and resolve problems. It includes symptoms, potential causes, and recommended solutions.

Common Symptoms
  • Delayed or harsh shifting
  • Slipping gears
  • Transmission overheating
  • Unusual noises during operation
Diagnostic Steps
  • Check transmission fluid level and condition.
  • Inspect for leaks or damaged components.
  • Use a scan tool to retrieve diagnostic trouble codes.
  • Test solenoid operation and electrical connections.

Transmission Specifications

Overview

Type
Automatic
Configuration
4-speed
Platform
Front-wheel drive
Material
Aluminum casing
Location
Mounted longitudinally

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
1.25 inches (31.75 mm)
Output Shaft Diameter
1.5 inches (38.1 mm)
Fluid Capacity
7.4 quarts (7 liters)

Materials

Casing
Aluminum alloy
Gears
Hardened steel
Clutch Packs
Composite friction materials
Seals
Viton rubber
Cooling Lines
Steel with rubber hoses

Features

Shifting
  • Electronic shift control
  • Adaptive shift logic
  • Manual shift mode
  • Smooth shift transitions
Cooling
  • Integrated transmission cooler
  • Fluid temperature sensor
  • External cooling lines
Durability
  • Reinforced gear sets
  • High-capacity clutch packs
  • Robust torque converter
Performance
  • Optimized gear ratios
  • Quick response to throttle input
  • Efficient power transfer
Safety
  • Fail-safe mode
  • Overheat protection
  • Electronic diagnostics

Safety Features

Fail Safe
  • Limps home mode
  • Reduced power output
Overheat Protection
  • Temperature monitoring
  • Automatic cooling activation
Electronic Diagnostics
  • OBD-II compatibility
  • Error code storage

Comfort Features

Noise Reduction
  • Precision gear meshing
  • Vibration dampening mounts
Smooth Operation
  • Adaptive shift logic
  • Torque converter lockup
User interface
  • Gear position indicator
  • Shift lock override

Accessories

Cooling
  • Transmission cooler kit
  • External cooling fan
  • High-flow cooling lines
Performance
  • Shift improvement kit
  • High-capacity torque converter
  • Reinforced clutch packs
Maintenance
  • Fluid exchange kit
  • Filter replacement kit
  • Seal replacement set

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Fluid and filter replacement
  • Seal inspection
  • Clutch pack wear check
  • Cooling system inspection
  • Electronic diagnostics
Maintenance Notes
Use only recommended transmission fluid for optimal performance.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Transmission and drivetrain
Corrosion
Miles: Unlimited
Years: 7
Coverage: Perforation only
Emissions
Miles: 80,000
Years: 8
Coverage: Federal emissions components

Production Details

Manufacturer
JATCO
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Quality control testing
Quality Control
Testing: Durability testing, Performance testing, Leak testing
Standards: ISO 9001 certified, JIS D 0201 compliant
Sustainability Practices
  • Recycled aluminum usage
  • Eco-friendly fluid options
  • Energy-efficient manufacturing
Production Metrics
Units Per Year: 150,000
Defect Rate: 0.05%
Lead Time: 4 weeks

Service Information for 4r01 transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Transmission fluid and filter replacement
  • Seal inspection and replacement if necessary
  • Cooling system inspection
  • Electronic diagnostics check
  • Shift quality assessment

Use only manufacturer-recommended transmission fluid.

60,000
48
  • Complete fluid flush
  • Clutch pack wear inspection
  • Torque converter performance check
  • Cooling system flush
  • Shift solenoid testing

Special tools required for clutch pack inspection.

100,000
84
  • Transmission overhaul if necessary
  • Replace all seals and gaskets
  • Inspect and replace worn gears
  • Performance testing post-service
  • Cooling system upgrade if needed

Major service may require transmission removal.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 4R01 transmission compatible with other Infiniti models?

The 4R01 transmission, used in the 1996-1999 Infiniti I30, is specifically designed for this model and its Nissan counterpart, the Maxima. It is not compatible with other Infiniti models due to differences in mounting points, electronics, and drivetrain configurations. Always verify compatibility using the vehicle's VIN or consult a professional before attempting any cross-model installations.

Q2

What are the maintenance requirements for the 4R01 transmission?

The 4R01 transmission requires regular maintenance to ensure longevity. This includes checking and replacing the transmission fluid every 30,000-60,000 miles, inspecting the filter, and ensuring the cooling system is functioning properly. Periodic checks for leaks, unusual noises, or shifting issues are also recommended. Adhering to the manufacturer's maintenance schedule is crucial for optimal performance.

Q3

How do I replace the 4R01 transmission in my Infiniti I30?

Replacing the 4R01 transmission involves several steps: 1) Disconnect the battery and drain the transmission fluid. 2) Remove the driveshaft, exhaust components, and crossmember. 3) Disconnect the wiring harness and shift linkage. 4) Support the engine and remove the transmission bolts. 5) Carefully lower and remove the transmission. Installation is the reverse process. Use a torque wrench for all bolts and refill with the correct fluid type.

Q4

What should I do if my 4R01 transmission is slipping or not shifting properly?

If your 4R01 transmission is slipping or not shifting properly, start by checking the transmission 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 replacing the fluid, repairing leaks, or addressing electrical issues. Consult a professional for complex repairs.

Q5

How can I optimize the performance of my 4R01 transmission?

To optimize the performance of your 4R01 transmission, use high-quality transmission fluid and ensure it is changed regularly. Avoid aggressive driving and excessive towing to reduce wear. Install an auxiliary transmission cooler if you frequently drive in hot climates or tow heavy loads. Regularly inspect and maintain the transmission's cooling system and ensure the engine is tuned properly for smooth operation.

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

Coming Soon

Comprehensive guide covering maintenance, repair, and troubleshooting for the 1996-1999 Infiniti I30, including the 4R01 transmission.

Technical Service Bulletin for 4R01 Transmission

Coming Soon

Official bulletin addressing common issues, updates, and fixes for the 4R01 transmission in the Infiniti I30.

Infiniti I30 Parts and Accessories Catalog

Coming Soon

Detailed catalog listing OEM and aftermarket parts, including transmission components, for the 1996-1999 Infiniti I30.

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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.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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