Jeep Cherokee 1997-2001 30RH Transmission Specifications
This document provides detailed specifications for the 30RH transmission used in the 1997-2001 Jeep Cherokee. It includes critical data such as gear ratios, fluid capacity, torque converter specifications, and shift patterns. These specifications are essential for understanding the transmission's performance, maintenance needs, and compatibility with other components. Whether you're a mechanic performing repairs, an enthusiast upgrading your vehicle, or a DIYer conducting routine maintenance, this information will help you ensure optimal operation and longevity of your Jeep Cherokee's transmission. The 30RH is a robust 3-speed automatic transmission known for its reliability and durability, making these specifications valuable for anyone working with this model.
Overview Specifications
This document provides detailed specifications and technical information for the 30RH transmission used in the 1997-2001 Jeep Cherokee. It includes sections on design, performance, maintenance, and troubleshooting. Use this guide to understand the transmission's features, locate specific details, and ensure proper care and operation. Whether you're a mechanic, enthusiast, or owner, this resource will help you navigate the complexities of the 30RH transmission effectively.
How to Use
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Key Specifications
Gear Ratios
2.74:1, 1.54:1, 1.00:1
Torque Capacity
230 lb-ft
Fluid Capacity
12 quarts
Fluid Type
ATF+4
Weight
150 lbs
Available Specifications
Design and Construction
This section covers the design and construction of the 30RH transmission, including its components and layout. Learn about the materials used, assembly process, and how it integrates into the Jeep Cherokee's drivetrain.
Design and Construction
This section covers the design and construction of the 30RH transmission, including its components and layout. Learn about the materials used, assembly process, and how it integrates into the Jeep Cherokee's drivetrain.
Transmission Layout
- Three-speed automatic transmission
- Rear-wheel drive configuration
- Torque converter with lock-up clutch
- Aluminum alloy housing for weight reduction
- Compact design for easy installation
Key Components
- Planetary gear set for smooth shifting
- Hydraulic control system for precise operation
- Valve body for fluid management
- Input and output shafts for power transfer
- Seals and gaskets for durability
Performance Specifications
Explore the performance capabilities of the 30RH transmission, including gear ratios, torque capacity, and efficiency. This section provides the data needed to understand its operation under various conditions.
Performance Specifications
Explore the performance capabilities of the 30RH transmission, including gear ratios, torque capacity, and efficiency. This section provides the data needed to understand its operation under various conditions.
Gear Ratios
- First gear: 2.74:1
- Second gear: 1.54:1
- Third gear: 1.00:1
- Reverse gear: 2.21:1
- Overall ratio spread: 2.74
Torque and Power Handling
- Maximum torque capacity: 230 lb-ft
- Designed for engines up to 4.0L
- Efficient power transfer with minimal loss
- Suitable for light to moderate off-road use
- Durable construction for high-stress conditions
Maintenance and Care
Proper maintenance is essential for the longevity of the 30RH transmission. This section provides guidelines for fluid changes, inspections, and common maintenance tasks to keep it running smoothly.
Maintenance and Care
Proper maintenance is essential for the longevity of the 30RH transmission. This section provides guidelines for fluid changes, inspections, and common maintenance tasks to keep it running smoothly.
Fluid Requirements
- Recommended fluid: ATF+4
- Fluid capacity: 12 quarts (including torque converter)
- Check fluid level regularly
- Change fluid every 30,000 miles
- Use a quality filter during fluid changes
Inspection and Troubleshooting
- Inspect for leaks around seals and gaskets
- Check for unusual noises during operation
- Monitor shift quality and responsiveness
- Address any slipping or delayed shifts promptly
- Regularly inspect the transmission mount
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 3-speed
- Platform
- Jeep Cherokee (XJ)
- Material
- Aluminum housing
- Location
- Front-wheel drive
Dimensions
- Length
- 21.5 in (546.1 mm)
- Width
- 15.75 in (400.1 mm)
- Height
- 12.25 in (311.2 mm)
- Weight
- 120 lbs (54.4 kg)
- input Shaft Diameter
- 0.75 in (19.05 mm)
- Output Shaft Diameter
- 1.125 in (28.58 mm)
- Fluid Capacity
- 7.5 quarts (7.1 liters)
Materials
- Housing
- Aluminum alloy
- Gears
- Hardened steel
- Clutches
- Friction material with steel plates
- Seals
- Synthetic rubber
Features
- Transmission Control
-
- Hydraulic control system
- Vacuum modulator
- Throttle valve linkage
- Gear Ratios
-
- 1st: 2.74:1
- 2nd: 1.54:1
- 3rd: 1.00:1
- Reverse: 2.21:1
- Cooling
-
- Integrated fluid cooler
- Transmission cooler lines
- Shifting
-
- Smooth shift transitions
- Automatic lock-up torque converter
Safety Features
- Fail-Safe
-
- Fail-safe mode in case of overheating
- Backup hydraulic pressure
- Protection
-
- Overheat protection
- Fluid level sensor
Comfort Features
- Driving Experience
-
- Smooth acceleration
- Quiet operation
- Reduced vibration
- User interface
-
- Simple gear selector
- Clear shift indicator
Accessories
- installation
-
- Transmission mount kit
- Shift linkage kit
- Transmission cooler kit
- Maintenance
-
- Fluid pump
- Filter kit
- Seal kit
- Performance
-
- Shift improvement kit
- Heavy-duty torque converter
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Modulator check
- Linkage adjustment
- Cooler line inspection
- Maintenance Notes
-
- Use only specified transmission fluid
- Check for leaks regularly
- Ensure proper fluid level
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Major components
- Corrosion
- Miles: 100,000Years: 7Coverage: Rust perforation
- Emissions
- Miles: 50,000Years: 4Coverage: Emission-related parts
Production Details
- Manufacturer
- Chrysler Corporation
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Quality testing
- Quality Control
- Testing: Pressure testing, Leak testing, Performance testinginspection: Visual inspection, Dimensional checks, Material verification
- Sustainability Practices
-
- Recycling of aluminum scrap
- Use of eco-friendly fluids
- Energy-efficient manufacturing
- Production Metrics
- Units Per Year: 50,000Defect Rate: 0.5%Lead Time: 2 weeks
Service Information for 30rh transmission Service
Maintenance and service requirements specific to this component
- Fluid and filter replacement
- Seal inspection
- Linkage adjustment
- Cooler line inspection
- Modulator check
Use only specified transmission fluid
- Full fluid flush
- Torque converter inspection
- Valve body check
- Shift quality test
- Cooler line replacement if necessary
Special tools required for valve body inspection
- Complete transmission overhaul
- Clutch pack replacement
- Seal and gasket replacement
- Torque converter replacement
- Performance testing
Critical to inspect for wear and tear at this interval
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 30RH transmission compatible with other Jeep models?
Is the 30RH transmission compatible with other Jeep models?
The 30RH transmission is specifically designed for the 1997-2001 Jeep Cherokee (XJ). It is not directly compatible with other Jeep models or generations due to variations in mounting points, electronics, and drivetrain configurations. Always verify compatibility using the vehicle’s VIN and consult technical specifications before considering cross-model installations.
Q2 What are the maintenance requirements for the 30RH transmission?
What are the maintenance requirements for the 30RH transmission?
Regular maintenance for the 30RH transmission includes checking and replacing the transmission fluid every 30,000 miles, inspecting for leaks, and ensuring the filter is clean. Use only manufacturer-recommended ATF+4 fluid. Periodic inspection of the torque converter and shift linkage is also advised to ensure smooth operation and longevity.
Q3 How do I replace the 30RH transmission in my Jeep Cherokee?
How do I replace the 30RH transmission in my Jeep Cherokee?
To replace the 30RH transmission, first disconnect the battery and drain the transmission fluid. Remove the driveshaft, transfer case (if applicable), and crossmember. Disconnect the shift linkage, cooler lines, and electrical connectors. Support the engine, unbolt the transmission, and carefully lower it. Install the new transmission by reversing the steps, ensuring proper alignment and torque specifications.
Q4 What should I do if my 30RH transmission is slipping or not shifting?
What should I do if my 30RH transmission is slipping or not shifting?
If the 30RH transmission is slipping or not shifting, first check the fluid level and condition. Low or contaminated fluid can cause these issues. Inspect the shift linkage and throttle valve cable for proper adjustment. If problems persist, diagnose the valve body, torque converter, or internal clutches. Professional diagnosis may be required for complex issues.
Q5 How can I optimize the performance of my 30RH transmission?
How can I optimize the performance of my 30RH transmission?
To optimize the 30RH transmission’s performance, ensure regular fluid changes with ATF+4, maintain proper fluid levels, and inspect the cooling system to prevent overheating. Consider upgrading to a high-performance torque converter for improved acceleration. Properly adjusting the shift linkage and throttle valve cable also ensures smoother and more responsive shifting.
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 30RH Transmission Service Manual
Coming SoonDetailed service manual covering the 30RH transmission for 1997-2001 Jeep Cherokee, including disassembly, repair, and reassembly instructions.
Technical Service Bulletin for 30RH Transmission
Coming SoonOfficial bulletin addressing common issues and updates for the 30RH transmission in Jeep Cherokee models.
Jeep Cherokee 30RH Parts Catalog
Coming SoonComprehensive catalog listing OEM and aftermarket parts for the 30RH transmission, including gaskets, seals, and internal 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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