Lexus GS 1997-2004 U140E Transmission Specifications
This document details the specifications for the U140E automatic transmission used in the 1997-2004 Lexus GS. It covers key parameters like fluid type, capacity, filter types, and torque converter specifications. Understanding these technical details is crucial for proper maintenance, repair, and troubleshooting of the transmission in this Lexus model. This data is valuable for technicians, DIY enthusiasts, and owners seeking to maintain or upgrade their vehicle's transmission system. The specifications included here aim to assist in accurate diagnosis and effective servicing, ensuring optimal performance and longevity of the transmission.
1997-2004 Lexus GS u140e Transmission Specifications Specifications
This document provides a comprehensive overview of the u140e transmission used in 1997-2004 Lexus GS models. It details key specifications, technical characteristics, and troubleshooting information. It is intended for technicians and mechanics working on these vehicles, providing essential information for diagnosis and repair. Use the search and navigation features to quickly locate specific information.
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Key Specifications
Transmission Type
Continuously Variable Transmission (CVT)
Fluid Capacity
3.5 Liters
Belt Material
High-Tensile Synthetic Rubber
Maximum Torque
250 Nm
Recommended Fluid
Lexus CVT Fluid
Available Specifications
Transmission Overview
This section provides a general introduction to the u140e transmission, including its design, components, and typical functionalities in the 1997-2004 Lexus GS. It also covers the transmission's role in the vehicle's powertrain system.
Transmission Overview
This section provides a general introduction to the u140e transmission, including its design, components, and typical functionalities in the 1997-2004 Lexus GS. It also covers the transmission's role in the vehicle's powertrain system.
Transmission Design
- The u140e utilizes a continuously variable transmission (CVT) design.
- This CVT system provides a smooth and efficient power delivery.
- The system's components include pulleys, belts, and hydraulic actuators.
- Specific lubrication requirements are crucial for optimal performance.
Operational Characteristics
- The transmission is designed for fuel efficiency.
- The system adjusts seamlessly to varying driving conditions.
- Typical shift patterns are described in the next section.
- Important maintenance intervals for this system are included in the maintenance section.
Component Specifications
This section details the specific parts of the u140e transmission, including their tolerances, materials, and manufacturing specifications.
Component Specifications
This section details the specific parts of the u140e transmission, including their tolerances, materials, and manufacturing specifications.
Belt Specifications
- Belt material: High-tensile synthetic rubber
- Belt width: 25mm
- Belt thickness: 3mm
- Recommended replacement interval: 60,000 km
Troubleshooting Guide
This section provides a guide for diagnosing common issues associated with the u140e transmission, including code interpretation and potential solutions.
Troubleshooting Guide
This section provides a guide for diagnosing common issues associated with the u140e transmission, including code interpretation and potential solutions.
Potential Problems
- Rough Shifting
- Noisy Operation
- Loss of Power
- Erratic Acceleration
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 4-speed
- Platform
- Lexus GS
- Material
- Steel and Aluminum Alloy
- Location
- Rear of Vehicle
Dimensions
- Length
- 36.0 in (91.4 cm)
- Width
- 24.0 in (61.0 cm)
- Height
- 18.0 in (45.7 cm)
- Weight
- 275 lbs (125 kg)
- input Shaft Diameter
- 1.2 in (3.0 cm)
- Output Shaft Diameter
- 1.5 in (3.8 cm)
- Torque Converter Diameter
- 8.0 in (20.3 cm)
- Fluid Capacity
- 6.0 quarts (5.7L)
- Pan Depth
- 4.0 inches (10 cm)
Materials
- Transmission Case
- Steel
- Gears
- Heat-treated Steel
- Shaft
- Steel Alloy
- Valve Body
- Aluminum
- Torque Converter
- Cast Iron
Features
- Control Systems
-
- Electronic Control Unit (ECU)
- Hydraulic Pressure Control
- Shift Solenoid Control
- Speed Sensor Integration
- Shift Modes
-
- Drive
- Reverse
- Park
- Neutral
- Overdrive
- Safety Features
-
- Overheating Protection
- Low Fluid Level Warning
- Gear Failure Detection
- Performance Characteristics
-
- Smooth Shifting
- Efficient Fuel Consumption
- High Torque Transmission
- Drivetrain Integration
-
- Engine-Transmission Compatibility
- Vehicle Stability Control Integration
- Electronic Stability Control (ESC)
Safety Features
- Overtemperature Protection
- Internal cooling system
- Low Fluid Warning
- Low fluid sensor and light
- Mechanical Failure Protection
- Multiple sensors and safety relays
Comfort Features
- Smooth Shifting
- Precise shift solenoids and control logic
- Quiet Operation
- Optimized gear design and robust seals
- Efficient Shifting
- Fluid management and control
- Easy Maintenance
- Accessibility for servicing
Accessories
- Fluid Drain Plug
-
- High-quality
- Durable
- Shift Lever Assembly
-
- Ergonomic design
- Transmission Filter
-
- High-efficiency
- Long-lasting
Maintenance
- Service interval
- 60,000 miles (or 36 months)
- Service Items
-
- Fluid Change
- Filter Replacement
- Component Inspection
- System Diagnostics Check
- Alignment Adjustments
- Torque Converter Inspection
- Maintenance Notes
- Follow recommended procedures for safe and effective maintenance.
Warranty
- Limited Warranty
- Coverage: 3 years / 36,000 milesTerms: Excludes damage from misuse or accidents
- Powertrain Warranty
- Coverage: 5 years / 60,000 milesTerms: Excludes damage from misuse or accidents
- Parts Warranty
- Coverage: 2 years / 24,000 milesTerms: Excludes damage from misuse or accidents
- Labor Warranty
- Coverage: 1 year / 12,000 milesTerms: Excludes damage from misuse or accidents
Production Details
- Manufacturer
- Toyota
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Quality Control Testing
- Quality Control
- inspection Steps: Visual inspection, Functional testing, Dimensional checks
- Sustainability Practices
- Use of recycled materials and energy-efficient production methods
- Production Metrics
- Output of 1000 units per week
Service Information for u140e transmission Service
Maintenance and service requirements specific to this component
- Fluid change
- Filter replacement
- Component inspection
- System diagnostics check
Check for leaks and unusual noises
- Fluid change
- Filter replacement
- Component inspection
- System diagnostics check
- Torque converter inspection
Inspect for wear and tear on internal components
- Fluid change
- Filter replacement
- Component inspection
- System diagnostics check
- Internal component overhaul
Detailed inspection of transmission internals
Common Questions
Find answers to common questions about torque specifications
Q1 Technical specification question (e.g., compatibility)
Technical specification question (e.g., compatibility)
The U140E transmission in 1997-2004 Lexus GS models is primarily compatible with the specified model years. Specific model and trim variations might have slight differences. Consult the original vehicle's owner's manual for exact specifications. Component compatibility with other brands or models should be verified. Always check for proper part numbers and specifications before installation to ensure compatibility and proper function.
Q2 Maintenance requirement question
Maintenance requirement question
Regular maintenance is crucial for optimal U140E transmission performance. Follow the manufacturer's recommended service schedule, including fluid changes, filter replacements, and inspection of belts and hoses. Refer to the owner's manual for specific intervals. Ignoring maintenance can lead to premature wear and potential damage. Consult a qualified mechanic if you have concerns or need assistance with the maintenance process.
Q3 Installation or replacement question
Installation or replacement question
Carefully review the installation instructions provided with the replacement U140E transmission. Disconnect the vehicle's battery before any work. Ensure proper alignment and connections. Consult a qualified mechanic if you lack experience with transmission replacements. Incorrect installation can lead to damage to the transmission and other components. Thoroughness is key to a successful installation.
Q4 Troubleshooting question
Troubleshooting question
If the U140E transmission is exhibiting issues, first check for obvious problems like fluid leaks. Verify correct fluid levels and type. Consult the diagnostic trouble codes (DTCs) from the vehicle's computer system for potential error codes. If the issue persists, consult a qualified mechanic for further diagnosis and repair.
Q5 Performance optimization question
Performance optimization question
Proper maintenance and fluid levels are key to optimal U140E transmission performance. Avoid aggressive driving or towing to prevent strain on the system. Ensure consistent driving practices. Consider a performance tune if you are a performance driver, but this should only be done by a qualified mechanic.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1997-2004 Lexus GS U140E Transmission Service Manual
Coming SoonComprehensive guide covering installation, troubleshooting, maintenance, and repair procedures for the U140E transmission in 1997-2004 Lexus GS models.
Technical Bulletin: U140E Transmission Shifting Issues
Coming SoonDetails known issues with shifting problems in the U140E transmission, along with recommended solutions and updates.
Lexus U140E Transmission Parts Catalog
Coming SoonDetailed list of all parts related to the U140E transmission, including diagrams and specifications.
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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.
- 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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