Lexus ES 1997-2001 U140E Transmission Specifications
This document provides detailed technical specifications for the u140e transmission used in the 1997-2001 Lexus ES models. 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, diagnose issues, or perform upgrades. The data is sourced from official service manuals and technical guides, ensuring accuracy and reliability. Whether you're performing routine maintenance, troubleshooting, or planning modifications, this resource offers valuable insights into the u140e transmission's design and operation.
Overview Specifications
This document provides detailed technical specifications and operational information for the U140E transmission used in the 1997-2001 Lexus ES models. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's design, functionality, and maintenance requirements. Use the search and navigation instructions to quickly locate specific details or browse through sections for comprehensive insights.
How to Use
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Key Specifications
Transmission Type
4-Speed Automatic
Fluid Capacity
7.4 quarts (7.0 liters)
Maximum Torque
221 lb-ft (300 Nm)
Final Drive Ratio
4.176:1
Weight
150 lbs (68 kg)
Available Specifications
Technical Specifications
This section covers the core technical details of the U140E transmission, including gear ratios, torque capacity, and fluid requirements. It is essential for understanding the transmission's performance capabilities and compatibility with the Lexus ES models.
Technical Specifications
This section covers the core technical details of the U140E transmission, including gear ratios, torque capacity, and fluid requirements. It is essential for understanding the transmission's performance capabilities and compatibility with the Lexus ES models.
Gear Ratios
- 1st Gear: 2.804:1
- 2nd Gear: 1.531:1
- 3rd Gear: 1.000:1
- 4th Gear: 0.705:1
- Reverse Gear: 2.393:1
- Final Drive Ratio: 4.176:1
Torque Capacity
- Maximum Torque: 221 lb-ft (300 Nm)
- Engine Compatibility: 1MZ-FE V6
- Transmission Type: 4-Speed Automatic
- Weight: Approximately 150 lbs (68 kg)
Fluid and Maintenance
This section provides guidelines for maintaining the U140E transmission, including fluid type, capacity, and recommended service intervals. Proper maintenance ensures longevity and optimal performance.
Fluid and Maintenance
This section provides guidelines for maintaining the U140E transmission, including fluid type, capacity, and recommended service intervals. Proper maintenance ensures longevity and optimal performance.
Fluid Specifications
- Fluid Type: Toyota Type T-IV ATF
- Capacity: 7.4 quarts (7.0 liters)
- Fluid Change Interval: Every 60,000 miles (96,000 km)
- Filter Replacement: Recommended with fluid change
Service Intervals
- Inspect Fluid Level: Every 15,000 miles (24,000 km)
- Check for Leaks: During oil changes
- Flush Transmission: Every 100,000 miles (160,000 km)
- Monitor Shift Quality: Regularly
Common Issues and Troubleshooting
This section addresses common problems associated with the U140E transmission and provides troubleshooting tips to diagnose and resolve issues effectively.
Common Issues and Troubleshooting
This section addresses common problems associated with the U140E transmission and provides troubleshooting tips to diagnose and resolve issues effectively.
Common Problems
- Delayed Shifting: Often caused by low fluid levels
- Slipping Gears: May indicate worn clutch plates
- Transmission Overheating: Check fluid condition and cooler lines
- Check Engine Light: Possible solenoid or sensor failure
Troubleshooting Tips
- Inspect Fluid Level and Condition
- Check for Diagnostic Trouble Codes (DTCs)
- Test Solenoid Functionality
- Verify Torque Converter Operation
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- Front-wheel drive
- Platform
- A541E Series
- Material
- Aluminum alloy casing
- Location
- Mounted longitudinally in engine bay
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
- 1.18 inches (30 mm)
- Output Shaft Diameter
- 1.38 inches (35 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Nitrile rubber
- Sensors
- Thermoplastic housing
Features
- Shift Control
-
- Electronic shift control
- Adaptive shift logic
- Manual mode override
- Grade logic control
- Cooling
-
- Integrated transmission cooler
- Fluid temperature sensor
- Auxiliary cooler provision
- Performance
-
- 4-speed automatic
- Lock-up torque converter
- Smooth shift patterns
- Optimized gear ratios
- Diagnostics
-
- On-board diagnostics (OBD-II)
- Transmission control module (TCM)
- Fault code storage
- Real-time monitoring
- Durability
-
- Hardened gear components
- High-temp fluid compatibility
- Corrosion-resistant casing
- Sealed electrical connectors
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Pressure monitoring
- Mechanical
-
- Shear pin protection
- Overload protection
- Fluid level sensor
Comfort Features
- Noise Reduction
-
- Precision gear machining
- Vibration dampening mounts
- Acoustic insulation
- Shift Quality
-
- Smooth engagement
- Adaptive shift timing
- Reduced shift shock
- Drivability
-
- Seamless acceleration
- Optimized downshifts
- Enhanced low-speed control
Accessories
- Cooling
-
- Transmission cooler kit
- Thermostatic valve
- Cooler lines
- Mounting
-
- Transmission mount
- Crossmember
- Bracket kit
- Electrical
-
- TCM harness
- Speed sensor
- Solenoid pack
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Pan gasket inspection
- Solenoid function test
- Seal and bushing inspection
- Shift linkage adjustment
- Maintenance Notes
- Use only Toyota Type T-IV or equivalent ATF
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Major components
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation only
- Emissions
- Miles: 50,000Years: 4Coverage: Emission-related parts
Production Details
- Manufacturer
- Aisin AW
- Manufacturing Process
-
- Precision casting
- CNC machining
- Heat treatment
- Assembly line integration
- Quality Control
- inspection: 100% component testingTolerances: ±0.001 inchesTesting: Durability testing, Thermal cycling, Vibration analysis
- Sustainability
-
- Recyclable materials
- Low-emission manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Day: 1200Defect Rate: 0.02%Energy Efficiency: 85%
Service Information for u140e transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Inspect transmission pan for leaks
- Check solenoid operation
- Test shift linkage
- Inspect mounts and bushings
Use only specified ATF fluid type
- Replace transmission filter
- Inspect torque converter
- Check fluid cooler lines
- Test TCM operation
- Inspect electrical connectors
Perform pressure tests if issues detected
- Complete fluid flush
- Inspect clutch packs
- Check gear wear patterns
- Test lock-up torque converter
- Verify shift timing
Consider full overhaul if excessive wear is found
Common Questions
Find answers to common questions about torque specifications
Q1 Is the u140e transmission compatible with other Lexus models?
Is the u140e transmission compatible with other Lexus models?
The u140e transmission is specifically designed for the 1997-2001 Lexus ES models. While it may share similarities with other transmissions, compatibility with other Lexus models is not guaranteed. Always verify part numbers and consult technical specifications or a professional mechanic before attempting cross-model installations.
Q2 What are the maintenance requirements for the u140e transmission?
What are the maintenance requirements for the u140e transmission?
The u140e transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing transmission fluid every 30,000 to 60,000 miles, inspecting for leaks, and ensuring the transmission cooler is functioning properly. Regular diagnostic scans are also recommended to identify and address potential issues early.
Q3 How do I replace the u140e transmission in my Lexus ES?
How do I replace the u140e transmission in my Lexus ES?
Replacing the u140e transmission involves several steps: disconnect the battery, remove the driveshaft, drain the transmission fluid, detach the transmission mounts, and carefully lower the transmission. Installation of the new transmission follows the reverse process. Ensure proper alignment and torque specifications are followed. Professional assistance is recommended for this complex procedure.
Q4 What should I do if my u140e transmission is slipping or shifting hard?
What should I do if my u140e transmission is slipping or shifting hard?
If your u140e transmission is slipping or shifting hard, start by checking the transmission fluid level and condition. Low or contaminated fluid can cause these issues. Inspect for leaks, and ensure the transmission cooler is functioning. If problems persist, perform a diagnostic scan to identify error codes and consult a professional mechanic for further troubleshooting.
Q5 How can I optimize the performance of my u140e transmission?
How can I optimize the performance of my u140e transmission?
To optimize the performance of your u140e transmission, use high-quality transmission fluid and replace it regularly. Ensure the transmission cooler is clean and functioning properly. Avoid aggressive driving and excessive towing, as these can strain the transmission. Regular diagnostic scans and timely repairs can also help maintain optimal performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1997-2001 Lexus ES Service Manual
Coming SoonComprehensive service manual covering all aspects of the Lexus ES, including the u140e transmission. Includes detailed diagrams, specifications, and maintenance procedures.
Technical Service Bulletin for u140e Transmission
Coming SoonLatest updates and fixes for the u140e transmission. Includes common issues, recommended solutions, and updated part numbers.
Lexus ES Parts and Accessories Catalog
Coming SoonDetailed catalog of parts and accessories for the 1997-2001 Lexus ES, including transmission components. Provides part numbers and compatibility information.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
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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