Chrysler Voyager 2020-present Exhaust System Bolt Torque Specifications
This page provides the specific torque specifications for exhaust bolts on 2020-Present Chrysler Voyager models. Accurate torque values are critical for proper exhaust system sealing and performance.
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
Exhaust Manifold
Specifications for bolts related to the exhaust manifold and its connection to the cylinder head.
1 Exhaust Manifold to Cylinder Head Bolts
M8 x 1.25
Exhaust Manifold to Cylinder Head Bolts
M8 x 1.25Torque Value
Important Notes
2 Exhaust Manifold to Exhaust Pipe Bolts
M10 x 1.5
Exhaust Manifold to Exhaust Pipe Bolts
M10 x 1.5Torque Value
Important Notes
Exhaust Piping
Specifications for bolts connecting the various sections of exhaust piping including the catalytic converter and muffler.
1 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5Torque Value
Important Notes
2 Muffler to Exhaust Pipe Bolts
M10 x 1.5
Muffler to Exhaust Pipe Bolts
M10 x 1.5Torque Value
Important Notes
3 Exhaust Flange Bolts (Mid-Pipe)
M10 x 1.5
Exhaust Flange Bolts (Mid-Pipe)
M10 x 1.5Torque Value
Important Notes
Exhaust Hangers
Specifications for bolts securing the exhaust hangers to the chassis.
1 Exhaust Hanger Bolts/Nuts
M8 x 1.25
Exhaust Hanger Bolts/Nuts
M8 x 1.25Torque Value
Important Notes
Oxygen Sensors
Specifications for torquing the oxygen sensors into the exhaust system.
1 Oxygen Sensor
M18 x 1.5
Oxygen Sensor
M18 x 1.5Torque 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 are the torque specifications for the exhaust manifold bolts on a 2020-Present Chrysler Voyager?
What are the torque specifications for the exhaust manifold bolts on a 2020-Present Chrysler Voyager?
The exhaust manifold bolts on a 2020-Present Chrysler Voyager should be torqued to 22 lb-ft (30 Nm). It is crucial to tighten these bolts in a sequence pattern, starting from the center and working your way outwards in a circular or criss-cross manner. This ensures even pressure on the gasket.
Q2 What are the torque specifications for the exhaust pipe flange bolts connecting the exhaust pipe to the catalytic converter or muffler on a 2020-Present Chrysler Voyager?
What are the torque specifications for the exhaust pipe flange bolts connecting the exhaust pipe to the catalytic converter or muffler on a 2020-Present Chrysler Voyager?
The exhaust pipe flange bolts, connecting the exhaust pipe to the catalytic converter or muffler, typically require a torque of 20 lb-ft (27 Nm). These flange bolts often use a spring to hold tension against the gasket and correct torque is necessary for seal reliability.
Q3 What happens if I overtighten the exhaust bolts?
What happens if I overtighten the exhaust bolts?
Overtightening exhaust bolts can lead to several problems. You risk stripping the threads in the manifold or flange, which may require costly repairs. You could also crush the exhaust gasket, leading to exhaust leaks and potential engine damage. A common scenario is overtightening manifold bolts, causing a crack on the manifold or damaging the aluminum cylinder head threads.
Q4 Can I reuse the exhaust gaskets after removing the exhaust system?
Can I reuse the exhaust gaskets after removing the exhaust system?
It is generally not recommended to reuse exhaust gaskets. These gaskets are designed to crush slightly when compressed, which creates a good seal. Reusing a used gasket often leads to exhaust leaks due to the gasket no longer being able to provide a proper seal, even with proper torque applied. You may have to remove the whole system again to correct a leaky exhaust gasket so it is better to replace it the first time around.
Q5 Do I need to use anti-seize on the exhaust bolts?
Do I need to use anti-seize on the exhaust bolts?
Applying a small amount of anti-seize compound to exhaust bolts is advisable. This helps prevent corrosion and makes future removals easier, especially in areas exposed to moisture and heat. However, be mindful not to get anti-seize on the gasket itself because that can cause a poor seal.
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 accurately tightening exhaust bolts to the specified torque.
- 1/2 inch drive
- Foot-pound (ft-lb) measurement capability
- Accurate within +/- 3%
13mm Socket
A standard 13mm socket is needed for most exhaust bolts on the Chrysler Voyager.
- 6 point socket
- 1/2 inch drive
- Chrome vanadium steel
15mm Socket
A standard 15mm socket may be needed for some exhaust bolts or flanges on the Chrysler Voyager.
- 6 point socket
- 1/2 inch drive
- Chrome vanadium steel
Extension Bar
An extension bar helps to reach exhaust bolts that are in difficult-to-access locations.
- 1/2 inch drive
- Various lengths available
- Chrome vanadium steel
Penetrating Oil
Used to help loosen corroded or stuck exhaust bolts.
- Quick acting
- Corrosion resistant
- Easy to apply
Service Procedures
Exhaust Manifold Bolt Tightening Procedure
This procedure outlines how to properly tighten the bolts on the exhaust manifold for a 2020-Present Chrysler Voyager.
- Consult the service manual for the specific torque specification of the exhaust manifold bolts. Typically this is between 15-20 ft-lbs.
- Ensure the engine is cool before beginning the process.
- Using the 13mm (or 15mm as needed) socket and torque wrench, tighten each bolt evenly in a cross-pattern sequence to the specified torque.
- Double-check each bolt to confirm proper torque application.
- Start the vehicle and listen for any exhaust leaks.
Exhaust Pipe Flange Bolt Tightening Procedure
This procedure outlines how to properly tighten the bolts connecting exhaust pipes at the flanges for a 2020-Present Chrysler Voyager.
- Consult the service manual for the specific torque specification of the exhaust pipe flange bolts. Typically this is between 25-35 ft-lbs.
- Ensure the exhaust system is properly aligned before tightening.
- Using the 13mm (or 15mm as needed) socket and torque wrench, tighten each bolt evenly in a cross-pattern sequence to the specified torque.
- Double-check each bolt to confirm proper torque application.
- Start the vehicle and listen for any exhaust leaks.
Technical Service Bulletins
Exhaust Manifold Bolt Corrosion
2021-03-15Some 2020-2021 Chrysler Voyager models have experienced premature corrosion of the exhaust manifold bolts, leading to potential exhaust leaks.
Resolution: Inspect exhaust manifold bolts for corrosion. Replace corroded bolts and use anti-seize compound during reinstallation. Use recommended torque specification of 15-20 ft-lbs during install. If needed, also replace the exhaust manifold gasket.
Exhaust Pipe Flange Bolt Loosening
2022-07-28Certain 2020-2022 Chrysler Voyager models have reported issues with exhaust pipe flange bolts loosening over time, causing exhaust leaks.
Resolution: Inspect exhaust pipe flange bolts and replace if necessary. Ensure correct torque specification of 25-35 ft-lbs. Consider using a thread locking compound to prevent future loosening, if service manual permits.
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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.