Jeep Liberty 2002-2007 42RLE Transmission Specifications
This document provides a detailed overview of the 42RLE transmission specifications for the 2002-2007 Jeep Liberty. It includes essential technical details such as gear ratios, torque capacity, fluid type, and shift patterns. These specifications are crucial for understanding the transmission's performance, maintenance requirements, and compatibility with other components. The information is valuable for automotive technicians, DIY enthusiasts, and Jeep Liberty owners looking to perform repairs, upgrades, or routine maintenance. By referencing this guide, readers can ensure proper servicing, enhance vehicle performance, and extend the lifespan of their transmission. This comprehensive resource serves as a reliable reference for anyone working with or owning a Jeep Liberty from the specified model years.
Overview Specifications
This document provides detailed specifications and technical information about the 42RLE transmission used in the 2002-2007 Jeep Liberty. It is designed to assist owners, mechanics, and enthusiasts in understanding the transmission's features, maintenance requirements, and performance characteristics. Use the search and navigation instructions to quickly find relevant information. The document is organized into sections covering design, performance, maintenance, and troubleshooting.
How to Use
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Key Specifications
Transmission Type
4-speed automatic
Torque Capacity
225 lb-ft
Recommended Fluid
Mopar ATF+4
Fluid Capacity
8.5 quarts
Weight
150 lbs
Available Specifications
Design and Features
This section covers the design principles and key features of the 42RLE transmission. Learn about its construction, components, and how it integrates with the Jeep Liberty's drivetrain.
Design and Features
This section covers the design principles and key features of the 42RLE transmission. Learn about its construction, components, and how it integrates with the Jeep Liberty's drivetrain.
Transmission Construction
- Four-speed automatic transmission
- Aluminum alloy housing for reduced weight
- Electronically controlled hydraulic system
- Integrated torque converter
- Designed for both 2WD and 4WD configurations
- Compact design for improved packaging
Key Components
- Planetary gear sets for smooth shifting
- High-capacity clutch packs
- Electronic solenoid valves for precise control
- Robust input and output shafts
- Sealed cooling system for optimal temperature management
Performance and Capabilities
Explore the performance metrics and capabilities of the 42RLE transmission. Understand its power handling, efficiency, and how it enhances the driving experience in the Jeep Liberty.
Performance and Capabilities
Explore the performance metrics and capabilities of the 42RLE transmission. Understand its power handling, efficiency, and how it enhances the driving experience in the Jeep Liberty.
Power Handling
- Rated for up to 225 lb-ft of torque
- Compatible with 3.7L V6 engine
- Smooth acceleration and shifting
- Designed for off-road and towing applications
- Optimized for Jeep Liberty's weight distribution
Efficiency and Durability
- Fuel-efficient gear ratios
- Reduced internal friction for longevity
- Designed for up to 150,000 miles with proper maintenance
- Enhanced cooling system for heavy loads
- Low maintenance requirements
Maintenance and Troubleshooting
This section provides guidance on maintaining the 42RLE transmission and troubleshooting common issues. Learn about fluid changes, inspection intervals, and how to address potential problems.
Maintenance and Troubleshooting
This section provides guidance on maintaining the 42RLE transmission and troubleshooting common issues. Learn about fluid changes, inspection intervals, and how to address potential problems.
Routine Maintenance
- Check transmission fluid every 30,000 miles
- Use Mopar ATF+4 fluid for optimal performance
- Inspect for leaks during oil changes
- Replace fluid and filter every 60,000 miles
- Monitor for abnormal shifting or noises
Common Issues and Solutions
- Delayed shifting may indicate low fluid or solenoid issues
- Rough shifts could point to worn clutch packs
- Overheating due to blocked cooler lines
- Fluid contamination from worn seals
- Diagnostic codes can identify electronic faults
Search Specifications
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Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- Four-speed
- Platform
- Jeep Liberty KJ
- Material
- Aluminum case
- Location
- Front longitudinal
Dimensions
- Length
- 24.5 inches (622 mm)
- Width
- 18.3 inches (465 mm)
- Height
- 14.7 inches (373 mm)
- Weight
- 135 lbs (61.2 kg)
- input Shaft Diameter
- 1.12 inches (28.4 mm)
- Output Shaft Diameter
- 1.18 inches (30 mm)
- Fluid Capacity
- 7.5 quarts (7.1 liters)
Materials
- Case
- Aluminum alloy
- Gears
- Hardened steel
- Clutches
- Friction material with steel plates
- Seals
- Viton rubber
- Sensors
- Plastic and copper
Features
- Shifting
-
- Electronic control
- Adaptive shift strategy
- Manual shift mode
- Cooling
-
- Integrated cooler
- Thermostatic control
- Fluid temperature sensor
- Sensors
-
- Input speed sensor
- Output speed sensor
- Fluid temperature sensor
- Lubrication
-
- Gear-driven pump
- High-pressure filtration
- Splash lubrication
- Safety
-
- Torque converter lockup
- Fail-safe mode
- Overheat protection
Safety Features
- Fail-Safe
-
- Limp-home mode
- Neutral idle
- Overheat
-
- Temperature monitoring
- Fluid cooling system
- Shift interlock
- Prevents accidental shifting
Comfort Features
- Smoothness
-
- Adaptive shift control
- Torque converter lockup
- Noise Reduction
-
- Helical gears
- Insulated case
- Ease Of Use
-
- Electronic shift control
- Manual mode override
- Performance
-
- Quick shifts
- Optimized gear ratios
Accessories
- Cooling
-
- Transmission cooler
- Thermostatic valve
- Cooler lines
- Mounting
-
- Transmission mount
- Crossmember
- Mounting bolts
- Electrical
-
- Shift solenoid pack
- Wiring harness
- Sensors
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter change
- Seal inspection
- Sensor testing
- Shift quality check
- Cooler line inspection
- Notes
- Use only Mopar ATF+4 fluid
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: 100,000Years: 7Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Emissions components
- Terms
- Non-transferable, requires regular maintenance
Production Details
- Manufacturer
- Chrysler Group LLC
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% component testingTesting: Dyno and road simulationCertification: ISO 9001
- Sustainability
-
- Recycled aluminum
- Energy-efficient production
- Waste reduction program
- Production Metrics
- Units Per Day: 500Defect Rate: 0.1%Lead Time: 3 weeks
Service Information for 42rle transmission Service
Maintenance and service requirements specific to this component
- Inspect fluid level and condition
- Replace transmission filter
- Check for leaks
- Inspect cooler lines
- Test shift quality
Use only Mopar ATF+4 fluid
- Perform full fluid flush
- Replace seals and gaskets
- Inspect torque converter
- Test sensors and solenoids
- Check shift linkage
Special tools required for seal replacement
- Inspect and replace clutch packs if needed
- Check valve body for wear
- Replace shift solenoids
- Perform transmission overhaul if necessary
- Test transmission controls
Major service requires professional equipment
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 42RLE transmission compatible with other Jeep models?
Is the 42RLE transmission compatible with other Jeep models?
The 42RLE transmission is specifically designed for the 2002-2007 Jeep Liberty and is not directly compatible with other Jeep models without significant modifications. It features a 4-speed automatic configuration with electronic controls, tailored for the Liberty’s 3.7L V6 engine. Always verify compatibility with your vehicle’s specifications before attempting any modifications.
Q2 What are the maintenance requirements for the 42RLE transmission?
What are the maintenance requirements for the 42RLE transmission?
Regular maintenance for the 42RLE transmission includes checking and replacing the transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. Inspect the transmission pan for leaks and replace the filter during fluid changes. Ensure the cooling system is functioning properly to prevent overheating, which can damage the transmission.
Q3 How do I replace the 42RLE transmission in a Jeep Liberty?
How do I replace the 42RLE transmission in a Jeep Liberty?
To replace the 42RLE transmission, first disconnect the battery and drain the transmission fluid. Remove the driveshaft, exhaust components, and crossmember. Disconnect the wiring harness and shift linkage. Support the transmission with a jack, unbolt it from the engine, and carefully lower it. Install the new transmission by reversing these steps, ensuring proper alignment and torque specifications.
Q4 What are common troubleshooting steps for the 42RLE transmission?
What are common troubleshooting steps for the 42RLE transmission?
Common issues with the 42RLE transmission include slipping, harsh shifting, and failure to engage. Begin by checking the transmission fluid level and condition. Inspect for leaks or damaged wiring. Use a diagnostic tool to read error codes from the transmission control module. If problems persist, consult a professional for a thorough inspection and potential repair.
Q5 How can I optimize the performance of the 42RLE transmission?
How can I optimize the performance of the 42RLE transmission?
To optimize the 42RLE transmission’s performance, regularly maintain the fluid and filter. Consider upgrading to a high-performance transmission cooler to reduce heat buildup. Use the correct fluid type specified by Jeep. Avoid aggressive driving and ensure the vehicle’s engine and transmission are properly tuned 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.
Jeep Liberty 42RLE Transmission Service Manual
Coming SoonDetailed service manual for the 42RLE transmission, covering maintenance, repair, and troubleshooting procedures.
Technical Service Bulletin for 42RLE Transmission
Coming SoonLatest updates and fixes for common issues related to the 42RLE transmission in Jeep Liberty models.
Jeep Liberty Parts and Accessories Catalog
Coming SoonComprehensive catalog of OEM and aftermarket parts for the 2002-2007 Jeep Liberty, including transmission components.
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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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