Jeep Cherokee 2002-2013 42RE Transmission Specifications
This detailed document provides comprehensive transmission specifications for the 2002-2013 Jeep Cherokee, covering essential technical details such as gear ratios, fluid capacities, torque converter specifications, and shift patterns. Designed for automotive enthusiasts, technicians, and DIY repairers, this guide ensures accurate maintenance, repair, and upgrade decisions. It includes vital information for identifying compatible parts, diagnosing transmission issues, and enhancing vehicle performance. The specifications are sourced from official service manuals and technical resources, offering reliable and precise data. Whether you're performing routine maintenance or tackling complex repairs, this guide is an indispensable resource for optimizing the performance and longevity of your Jeep Cherokee's transmission system.
Overview Specifications
This document provides detailed specifications and technical information for the 42RE transmission used in Jeep Cherokee models from 2002 to 2013. It includes sections on design, performance, maintenance, and troubleshooting to help users understand and service the transmission effectively. Use the search and navigation features to quickly locate specific details or refer to the quick reference section for key specifications.
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Key Specifications
Gear Ratios
2.74:1 (1st)
Torque Capacity
300 lb-ft
Fluid Type
ATF+4
Fluid Capacity
12 quarts
Stall Speed
1800-2200 RPM
Available Specifications
Design and Components
This section covers the structural and functional components of the 42RE transmission, including its gear ratios, torque converter, and internal parts. Understanding these elements is essential for diagnosing and repairing the transmission.
Design and Components
This section covers the structural and functional components of the 42RE transmission, including its gear ratios, torque converter, and internal parts. Understanding these elements is essential for diagnosing and repairing the transmission.
Gear Ratios
- First gear ratio: 2.74:1
- Second gear ratio: 1.54:1
- Third gear ratio: 1.00:1
- Reverse gear ratio: 2.21:1
- Overdrive gear ratio: 0.69:1
Torque Converter
- Diameter: 298 mm
- Stall speed: 1800-2200 RPM
- Lock-up clutch for improved efficiency
Performance and Specifications
This section outlines the performance metrics and technical specifications of the 42RE transmission, including its maximum torque capacity, shift points, and compatibility with engines.
Performance and Specifications
This section outlines the performance metrics and technical specifications of the 42RE transmission, including its maximum torque capacity, shift points, and compatibility with engines.
Torque Capacity
- Maximum torque: 300 lb-ft
- Designed for 4.0L inline-6 engine
- Compatible with select V8 engines
Shift Points
- 1st to 2nd shift: 12-15 mph
- 2nd to 3rd shift: 22-25 mph
- 3rd to OD shift: 45-50 mph
Maintenance and Troubleshooting
This section provides guidelines for maintaining the 42RE transmission and troubleshooting common issues such as slipping gears, delayed shifts, and fluid leaks.
Maintenance and Troubleshooting
This section provides guidelines for maintaining the 42RE transmission and troubleshooting common issues such as slipping gears, delayed shifts, and fluid leaks.
Fluid Requirements
- ATF+4 fluid recommended
- Fluid capacity: 12 quarts (including torque converter)
- Check fluid level with engine running
Common Issues
- Slipping gears due to worn clutch packs
- Delayed shifts caused by low fluid levels
- Fluid leaks from seals or gaskets
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 4-speed
- Platform
- Jeep Cherokee
- Material
- Aluminum alloy casing
- Location
- Front engine, rear-wheel drive or four-wheel drive
Dimensions
- Length
- 22.5 inches (571.5 mm)
- Width
- 16.3 inches (414 mm)
- Height
- 13.8 inches (350.5 mm)
- Weight
- 150 lbs (68 kg)
- input Shaft Diameter
- 0.75 inches (19 mm)
- Output Shaft Diameter
- 1.25 inches (31.75 mm)
- Oil Capacity
- 7.5 quarts (7.1 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Plates
- Composite friction material
- Seals
- Nitrile rubber
Features
- Shifting
-
- Electronic shift control
- Adaptive shift programming
- Manual shift capability
- Cooling
-
- Integrated transmission cooler
- External cooler support
- Durability
-
- Hardened steel gears
- High-torque capacity
- Robust internal components
- Compatibility
-
- Jeep Cherokee 2002-2013
- 4.0L inline-6 engine
- Rear-wheel and four-wheel drive
Safety Features
- Overheating Protection
-
- Temperature sensor
- Automatic downshift prevention
- Load Management
-
- Adaptive shift points
- Torque reduction under heavy load
- Emergency
- Park lock mechanism
Comfort Features
- Smoothness
-
- Soft shift programming
- Reduced vibration
- Noise Reduction
-
- Quiet gear engagement
- Sound-dampening casing
- Ease Of Use
-
- Electronic shift control
- Manual override
Accessories
- Cooling
-
- Transmission cooler kit
- External cooler lines
- Performance
-
- Shift improvement kit
- Heavy-duty clutch plates
- Maintenance
-
- Transmission fluid
- Filter kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Inspect for leaks
- Check shift quality
- Inspect cooler lines
- Test electronic controls
- Maintenance Notes
- Use only recommended transmission fluid
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Major components
- Corrosion
- Miles: 100,000Years: 7Coverage: Perforation only
- Warranty Terms
- Non-transferable, requires regular maintenance
Production Details
- Manufacturer
- Chrysler Group LLC
- Manufacturing Process
-
- Casting of aluminum casing
- CNC machining of gears
- Assembly with precision alignment
- Quality testing under load
- Quality Control
- Testing: Dynamic load testinginspection: 100% component inspectionCertification: ISO 9001 compliant
- Sustainability Practices
-
- Recycled aluminum usage
- Waste reduction in production
- Energy-efficient manufacturing
- Production Metrics
- Units Per Year: 50,000Defect Rate: Less than 0.1%
Service Information for 42re transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Replace filter
- Inspect for leaks
- Check shift quality
- Test electronic controls
Use only recommended transmission fluid
- Inspect clutch plates
- Check cooler lines
- Test transmission temperature sensor
- Inspect seals and gaskets
May require special tools for inspection
- Complete transmission overhaul
- Replace worn components
- Test under load
- Re-calibrate electronic controls
Critical to ensure all components are within specifications
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 42re transmission compatible with all 2002-2013 Jeep Cherokee models?
Is the 42re transmission compatible with all 2002-2013 Jeep Cherokee models?
The 42RE transmission is compatible with select 2002-2013 Jeep Cherokee models, particularly those equipped with the 4.0L inline-6 engine. It is essential to verify your vehicle's specific configuration, including engine type and drivetrain, before purchase. Cross-referencing your VIN with manufacturer specifications or consulting a dealership can ensure compatibility. Additionally, some models may require minor modifications for proper installation.
Q2 What are the maintenance requirements for the 42RE transmission?
What are the maintenance requirements for the 42RE transmission?
The 42RE transmission requires regular maintenance to ensure optimal performance. This includes fluid changes every 30,000 to 60,000 miles, depending on driving conditions. Use only manufacturer-recommended ATF+4 fluid. Inspect the transmission pan and filter during fluid changes, replacing the filter if necessary. Regularly check for leaks and ensure the cooling system is functioning properly to prevent overheating, which can damage the transmission.
Q3 How do I install or replace the 42RE transmission in a Jeep Cherokee?
How do I install or replace the 42RE transmission in a Jeep Cherokee?
To install or replace the 42RE transmission, first disconnect the battery and remove the driveshaft, exhaust components, and crossmember. Support the engine with a jack, then detach the transmission cooler lines, electrical connectors, and shift linkage. Unbolt the transmission from the engine and carefully lower it. Installation is the reverse process, ensuring proper alignment and torque specifications. Refill with ATF+4 fluid and check for leaks before testing.
Q4 What are common troubleshooting steps for the 42RE transmission?
What are common troubleshooting steps for the 42RE transmission?
Common issues with the 42RE transmission include slipping gears, delayed engagement, and fluid leaks. Begin by checking the fluid level and condition, ensuring it is clean and at the correct level. Inspect for leaks around the pan, seals, and cooler lines. Use a diagnostic scanner to check for error codes. If issues persist, consult a professional for further inspection, as internal components like solenoids or the torque converter may require attention.
Q5 How can I optimize the performance of the 42RE transmission?
How can I optimize the performance of the 42RE transmission?
To optimize the 42RE transmission, ensure regular maintenance with ATF+4 fluid changes and filter replacements. Upgrade to a high-performance cooler to prevent overheating, especially if towing or driving in hot climates. Consider using synthetic transmission fluid for improved performance and longevity. Avoid aggressive driving and ensure the engine is properly tuned, as poor engine performance can strain the transmission.
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 Cherokee 42RE Transmission Service Manual
Coming SoonDetailed instructions for servicing the 42RE transmission, including disassembly, repair, and reassembly procedures.
Technical Service Bulletin for 42RE Transmission Updates
Coming SoonInformation on updates and fixes for common issues with the 42RE transmission in Jeep Cherokee models.
Jeep Cherokee Parts and Accessories Catalog
Coming SoonComprehensive catalog of parts and accessories compatible with 2002-2013 Jeep Cherokee models.
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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
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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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