Chrysler Aspen 2007-2009 42RLE Transmission Torque Specifications
Detailed torque specifications for all bolts on the 42RLE automatic transmission used in the 2007-2009 Chrysler Aspen. Includes case, pan, valve body, and other component bolt torques.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
Search Specifications
Search by component name, bolt size, or description
Torque Calculator
Convert between different torque units
Transmission Mounting
Specifications for bolts that secure the transmission to the vehicle's frame or engine block.
1 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Torque Value
Important Notes
Transmission Oil Pan
Specifications for bolts that secure the transmission oil pan to the transmission case.
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
Transmission Drain Fill Plugs
Specifications for the drain and fill plugs used on the transmission case.
1 Transmission Drain and Fill Plugs
M18 x 1.5
Transmission Drain and Fill Plugs
M18 x 1.5Torque Value
Important Notes
Transmission Bellhousing
Specifications for bolts that secure the bellhousing to the engine.
1 Transmission Bellhousing Bolts
M10 x 1.5
Transmission Bellhousing Bolts
M10 x 1.5Torque Value
Important Notes
Torque Converter
Specifications for bolts that secure the torque converter to the flexplate.
1 Torque Converter to Flexplate Bolts
M8 x 1.25
Torque Converter to Flexplate Bolts
M8 x 1.25Torque Value
Important Notes
Output Shaft Yoke
Specifications for the nut/bolt that secures the output shaft yoke or flange to the transmission output shaft.
1 Transmission Output Shaft Yoke/Flange Nut
M22 x 1.5
Transmission Output Shaft Yoke/Flange Nut
M22 x 1.5Torque Value
Important Notes
Solenoid Pack
Specifications for bolts that secure the solenoid pack to the transmission housing.
1 Transmission Solenoid Pack Mounting Bolts
M6 x 1.0
Transmission Solenoid Pack Mounting Bolts
M6 x 1.0Torque Value
Important Notes
Fluid Line Fittings
Specifications for the banjo-style bolts securing transmission cooler lines to the transmission.
1 Transmission Fluid Line Fitting Bolts
M10 x 1.25
Transmission Fluid Line Fitting Bolts
M10 x 1.25Torque Value
Important Notes
Transmission Case
Specifications for bolts holding transmission case halves together (if applicable).
1 Transmission Case/Housing Bolts
M8 x 1.25
Transmission Case/Housing Bolts
M8 x 1.25Torque Value
Important Notes
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What happens if I overtighten the transmission pan bolts?
What happens if I overtighten the transmission pan bolts?
Overtightening the transmission pan bolts can crush the pan gasket, leading to leaks. It can also damage the transmission pan itself, potentially requiring replacement. Always use a calibrated torque wrench and the specified torque values. For example, overtightening the 13 ft-lb pan bolts to 20 ft-lbs can cause this damage.
Q2 Can I reuse the transmission pan gasket?
Can I reuse the transmission pan gasket?
It is generally not recommended to reuse the transmission pan gasket. The gasket compresses when torqued and may not seal correctly if reused, leading to fluid leaks. It's best to replace the pan gasket every time the transmission pan is removed for service, even if it looks undamaged. For example, re-using a used gasket after replacing a filter is a good way to have a leak later.
Q3 Why are the bellhousing bolts tightened to a higher torque than the pan bolts?
Why are the bellhousing bolts tightened to a higher torque than the pan bolts?
Bellhousing bolts connect the transmission to the engine and must withstand the engine's vibrations and torque. Therefore, they require a higher torque spec to ensure a strong and secure connection. Pan bolts, on the other hand, only seal the fluid and aren't under nearly the same stress.
Q4 How often should I change the fluid and filter on my 42RLE transmission?
How often should I change the fluid and filter on my 42RLE transmission?
Chrysler typically recommends a fluid and filter change every 60,000 miles under normal driving conditions. If you frequently tow or drive in heavy traffic, you may need to service it more often, perhaps every 30,000 miles. Not servicing the fluid can cause wear, slipping, and eventual transmission failure. Check your owner's manual for specific recommendations for your usage case.
Q5 What type of fluid is recommended for the 42RLE transmission?
What type of fluid is recommended for the 42RLE transmission?
Use only Mopar ATF+4 automatic transmission fluid. Using other types of fluid can damage the transmission and void any warranty. Always check your vehicle's owner's manual to confirm the correct fluid type, and do not mix different types of fluid.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Torque Wrench
A calibrated torque wrench is essential for tightening bolts to the manufacturer's specified torque.
- Accurate torque settings
- Variety of measurement units (ft-lb, Nm)
Socket Set
A socket set with various sizes, including metric sockets, is necessary for accessing and tightening bolts on the transmission.
- Variety of socket sizes
- Deep and shallow sockets
Extension Bars
Extension bars may be needed to reach difficult-to-access bolts on the transmission housing.
- Various lengths
- Strong and durable
Service Procedures
42RLE Transmission Bolt Torque Specifications
This procedure outlines the torque specifications for various bolts on the 42RLE transmission used in the 2007-2009 Chrysler Aspen.
- Always consult the specific service manual for your vehicle before beginning any work.
- Clean all threads of bolts and bolt holes before assembly.
- Apply thread locker where specified.
- Tighten bolts in stages and in the recommended sequence.
- Verify all bolts are torqued to the correct specifications.
Transmission Pan Bolt Torque Specification
This procedure outlines the torque specifications for the transmission pan bolts.
- Tighten the transmission pan bolts to 12 Nm or 105 in lbs.
- Tighten in a cross pattern.
- verify all bolts are torqued to the correct specifications.
Transmission Housing Bolt Torque Specification
This procedure outlines the torque specifications for the transmission housing bolts.
- Tighten the bell housing bolts to 61 Nm or 45 ft lbs.
- Tighten in a cross pattern.
- verify all bolts are torqued to the correct specifications.
Technical Service Bulletins
Potential 42RLE Transmission Bolt Issues
2010-05-15This bulletin addresses potential issues with improperly torqued bolts on the 42RLE transmission, which can lead to fluid leaks or internal damage.
Resolution: Ensure all bolts are torqued to the manufacturer's specifications using a calibrated torque wrench. If leaks or issues persist, inspect the transmission pan gasket and housing mating surfaces for damage.
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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.