Jeep Cherokee 2002-2013 45RFE Transmission Specifications
This document provides a detailed overview of the 45RFE transmission specifications for the 2002-2013 Jeep Cherokee. The 45RFE is a four-speed automatic transmission known for its durability and performance in SUVs. This guide includes key technical details such as gear ratios, torque capacity, fluid requirements, and service intervals. It also covers common maintenance tips, troubleshooting advice, and compatibility information for replacement parts. Whether you're a mechanic, enthusiast, or Jeep owner, this resource offers valuable insights to help you understand, maintain, or repair the 45RFE transmission. The specifications are essential for ensuring optimal performance and longevity of your vehicle's transmission system.
Overview Specifications
This document provides detailed specifications and technical information about the 45RFE transmission used in the 2002-2013 Jeep Cherokee. It includes sections on design, performance, maintenance, and troubleshooting. Use this guide to understand the transmission's features, how to maintain it, and address common issues. The 'howTo' section explains how to search and navigate the document efficiently.
How to Use
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Key Specifications
Transmission Type
5-speed automatic
Torque Capacity
300 lb-ft
Gear Ratios
2.84:1 (1st) - 0.69:1 (4th)
Fluid Capacity
8.5 quarts
Weight
175 lbs
Available Specifications
Design and Components
This section covers the design and key components of the 45RFE transmission, including its architecture, materials, and internal mechanisms. Understanding these elements is essential for maintenance and repair.
Design and Components
This section covers the design and key components of the 45RFE transmission, including its architecture, materials, and internal mechanisms. Understanding these elements is essential for maintenance and repair.
Transmission Architecture
- Five-speed automatic transmission
- Includes overdrive and lock-up torque converter
- Electronic control module for shifting
- Durable aluminum casing
- Designed for SUVs and light trucks
- Optimized for Jeep Cherokee's engine
Internal Components
- Three planetary gear sets
- Four friction clutches
- Two multi-disc clutches
- Hydraulic valve body for fluid control
- Sealed bearings for reduced friction
- High-strength steel gears
Performance Specifications
This section details the performance characteristics of the 45RFE transmission, including gear ratios, torque capacity, and efficiency metrics. These specs are crucial for understanding the transmission's capabilities.
Performance Specifications
This section details the performance characteristics of the 45RFE transmission, including gear ratios, torque capacity, and efficiency metrics. These specs are crucial for understanding the transmission's capabilities.
Gear Ratios
- First gear: 2.84:1
- Second gear: 1.57:1
- Third gear: 1.00:1
- Fourth gear: 0.69:1
- Reverse gear: 2.21:1
- Overdrive gear for fuel efficiency
Torque and Power Handling
- Maximum torque capacity: 300 lb-ft
- Designed for 3.7L and 4.7L engines
- Efficient power transfer with minimal loss
- Handles off-road and towing demands
- Smooth shifting under load
- Optimized for Jeep Cherokee's drivetrain
Maintenance and Troubleshooting
This section provides guidance on maintaining the 45RFE transmission and troubleshooting common issues. Regular maintenance ensures longevity and optimal performance.
Maintenance and Troubleshooting
This section provides guidance on maintaining the 45RFE transmission and troubleshooting common issues. Regular maintenance ensures longevity and optimal performance.
Routine Maintenance
- Check fluid levels every 30,000 miles
- Replace transmission fluid every 60,000 miles
- Inspect for leaks and wear
- Ensure proper cooling system function
- Use manufacturer-recommended fluids
- Regularly inspect the torque converter
Common Issues and Solutions
- Delayed shifting: Check fluid level and quality
- Slipping gears: Inspect clutches and bands
- Overheating: Verify cooling system operation
- Unusual noises: Check for worn bearings
- Check engine light: Scan for diagnostic codes
- Consult a professional for complex issues
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
- Longitudinal
- Platform
- Jeep Cherokee (2002-2013)
- Material
- Aluminum and steel
- Location
- Front-wheel drive, rear-wheel drive, and four-wheel drive
Dimensions
- Length
- 30.5 in (774.7 mm)
- Width
- 21.8 in (553.7 mm)
- Height
- 20.2 in (513.1 mm)
- Weight
- 150 lbs (68 kg)
- input Shaft Diameter
- 1.25 in (31.75 mm)
- Output Shaft Diameter
- 1.5 in (38.1 mm)
- Fluid Capacity
- 9.5 quarts (9 liters)
Materials
- Case
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Plates
- Composite friction material
- Seals
- Nitrile rubber
- Valve Body
- Aluminum
Features
- Gearing
-
- 4 forward gears
- 1 reverse gear
- Overdrive
- Lockup torque converter
- Controls
-
- Electronic shift control
- Manual shift mode
- Adaptive shift strategy
- Tow/Haul mode
- Cooling
-
- Integrated transmission cooler
- External cooler option
- Thermostatic control
- Durability
-
- High-strength gears
- Robust clutch packs
- Heavy-duty output shaft
- Compatibility
-
- Compatible with 4.0L I6 engine
- Compatible with 4.7L V8 engine
- Supports transfer case integration
Safety Features
- Fail-Safes
-
- Limp-home mode
- Overheat protection
- Shift interlock
- Monitoring
-
- Transmission temperature sensor
- Fluid level sensor
- Shift solenoid diagnostics
Comfort Features
- Smoothness
-
- Adaptive shift smoothing
- Torque converter lockup
- Reduced vibration
- Noise Reduction
-
- Quiet gear operation
- Insulated case
- Low-noise fluid pump
- Driver Control
-
- Manual shift capability
- Tow/Haul mode
- Sport mode
Accessories
- Cooling
-
- External transmission cooler
- Cooler lines
- Thermostatic valve
- Controls
-
- Shift kit
- Electronic control module
- Shift linkage
- Maintenance
-
- Transmission filter kit
- Fluid pan gasket
- Drain plug kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Pan gasket inspection
- Shift linkage adjustment
- Cooler line inspection
- Solenoid testing
- Maintenance Notes
- Use only Mopar ATF+4 fluid for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Extended
- Miles: 100,000Years: 7Coverage: Major components
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation from rust
Production Details
- Manufacturer
- Chrysler Group LLC
- Manufacturing Process
-
- Casting of aluminum case
- Machining of gears
- Assembly of valve body
- Quality testing
- Quality Control
- Pressure Testing: YesShift Cycle Testing: YesLeak Testing: Yes
- Sustainability Practices
-
- Recycling of aluminum scrap
- Use of eco-friendly fluids
- Energy-efficient manufacturing
- Production Metrics
- Units Per Year: 150,000Defect Rate: 0.5%Lead Time: 2 weeks
Service Information for 45rfe transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Replace filter
- Inspect pan gasket
- Check cooler lines
- Test shift solenoids
Use only Mopar ATF+4 fluid.
- Fluid and filter replacement
- Inspect valve body
- Check torque converter
- Test transmission control module
Inspect for leaks and abnormal wear.
- Complete fluid flush
- Replace clutch packs
- Inspect and replace seals
- Perform transmission overhaul
Major service requires specialized tools.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 45RFE transmission compatible with other Jeep models?
Is the 45RFE transmission compatible with other Jeep models?
The 45RFE transmission is specifically designed for the 2002-2013 Jeep Cherokee. While it shares some similarities with other transmissions, it is not directly compatible with other Jeep models without significant modifications. Always verify compatibility with your vehicle’s VIN and consult a professional before attempting any installation.
Q2 What are the maintenance requirements for the 45RFE transmission?
What are the maintenance requirements for the 45RFE transmission?
Regular maintenance for the 45RFE transmission includes fluid and filter changes every 30,000 to 60,000 miles, depending on driving conditions. Additionally, inspect for leaks, monitor fluid levels, and ensure the transmission is functioning smoothly. Periodic checks of the torque converter and solenoid pack are also recommended to maintain optimal performance.
Q3 How do I install or replace the 45RFE transmission?
How do I install or replace the 45RFE transmission?
To install or replace the 45RFE transmission, first disconnect the battery and remove the driveshafts, exhaust system, and crossmember. Lower the transmission carefully using a jack, disconnect electrical connectors and fluid lines, and remove the transmission. Install the new unit by reversing the process, ensuring proper alignment and torque specifications for all bolts and connections. Refill with the recommended transmission fluid and test for proper operation.
Q4 What are common troubleshooting steps for the 45RFE transmission?
What are common troubleshooting steps for the 45RFE transmission?
Common issues with the 45RFE transmission include slipping gears, delayed shifts, and fluid leaks. Start by checking the transmission fluid level and condition. Inspect for error codes using a diagnostic scanner. If issues persist, examine the solenoid pack, valve body, and torque converter. Replacing worn components or performing a fluid flush may resolve the problem.
Q5 How can I optimize the performance of the 45RFE transmission?
How can I optimize the performance of the 45RFE transmission?
To optimize performance, use the manufacturer-recommended transmission fluid and ensure it is at the correct level. Regularly inspect and replace the transmission filter. Consider upgrading the transmission cooler for better heat dissipation. Avoid aggressive driving habits and ensure the vehicle’s engine and drivetrain are in good condition to reduce stress on 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.
2002-2013 Jeep Cherokee 45RFE Service Manual
Coming SoonThis comprehensive manual provides detailed instructions for servicing and repairing the 45RFE transmission, including diagrams and technical specifications.
Technical Service Bulletin for 45RFE Transmission
Coming SoonThis bulletin addresses common issues and updates for the 45RFE transmission, including software updates and part replacements.
45RFE Transmission Parts Catalog
Coming SoonThis catalog lists all available parts and accessories for the 45RFE transmission, including part numbers and compatibility information.
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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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