Jeep Cherokee 2002-2013 42RE Transmission Transmission Torque Specifications & Bolt Torque Values
Jeep Cherokee 2002-2013

Jeep Cherokee 2002-2013 42RE Transmission Torque Specifications

Detailed torque specifications for the 42RE transmission bolts in 2002-2013 Jeep Cherokee models. Includes bolt sizes, torque values, and installation tips.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

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.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

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.

Prevention:

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.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

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

Secures the transmission to the engine block and transmission crossmember, ensuring proper alignment and preventing movement during operation.

1

Transmission Mounting Bolts

M16 x 1.5
Torque Value
40 ft-lbs (54 N·m)

Oil pan

Secures the oil pan to the transmission case, preventing oil leaks and ensuring proper lubrication of the transmission components.

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Value
105 in-lbs (12 N·m)

Fluid system

Allows for the transmission fluid to be drained and filled, and proper torque ensures a leak-free seal.

1

Transmission Drain and Fill Plugs

M14 x 1.25
Torque Value
25 ft-lbs (34 N·m)
2

Transmission Fluid Drain/Fill Plug

M14 x 1.25
Torque Value
25 ft-lbs (34 N·m)

Transmission case

Secures the transmission case halves together, preventing leaks and ensuring the transmission's structural integrity.

1

42RE Transmission Case Bolts

M12 x 1.5
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Estimated value based on industry standards.

Bellhousing

Secures the bellhousing to the transmission case and engine block, ensuring proper alignment and preventing movement during operation.

1

42RE Transmission Bellhousing Bolts

M16 x 1.5
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on industry standards.

Pan gasket

Secures the pan gasket to the transmission case and oil pan, preventing oil leaks and ensuring proper lubrication of the transmission components.

1

42RE Transmission Pan Gasket Bolts

M10 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on industry standards.

Filter

Secures the transmission filter to the transmission case, ensuring proper filtration of the transmission fluid and preventing contamination.

1

42RE Transmission Filter Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

1

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
2

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
3

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

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 42RE transmission pan bolts?

The torque specification for the 42RE transmission pan bolts is 12-15 ft-lbs (16-20 Nm). Over-tightening can strip the threads or warp the pan, leading to leaks.

Q2

How often should I check the torque on my 42RE transmission bolts?

It is recommended to check the torque on critical bolts (e.g., pan bolts, bellhousing bolts) during routine maintenance, such as fluid changes or every 30,000 miles. Always re-torque after any transmission service.

Q3

Can I reuse the transmission pan bolts on a 42RE?

Yes, the bolts can be reused if they are in good condition. However, inspect them for wear, corrosion, or damage. If any bolts are compromised, replace them with OEM or equivalent parts to ensure proper torque and sealing.

Q4

What happens if I under-torque the 42RE transmission bolts?

Under-torquing can lead to leaks, loose components, and potential damage to the transmission. For example, a loose pan bolt can cause fluid leaks, leading to low fluid levels and transmission failure.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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 precision tool used to apply a specific torque to a fastener such as a bolt or nut.

  • Adjustable torque settings
  • Calibrated for accuracy
Learn more

Socket Set

A set of sockets in various sizes to fit the transmission bolts.

  • Includes both metric and standard sizes
  • Durable construction
Learn more

Thread Locker

A chemical compound used to secure bolts and prevent them from loosening due to vibration.

  • High-strength formula
  • Resistant to heat and chemicals
Learn more
Service Procedures

42RE Transmission Bolt Torque Specifications

Detailed steps to properly torque the bolts on a 42RE transmission for a 2002-2013 Jeep Cherokee.

  • Ensure the transmission is securely mounted and aligned.
  • Clean the bolt threads and apply thread locker if specified.
  • Using a torque wrench, tighten the bolts to the specified torque values in a crisscross pattern.
  • Double-check all bolts to ensure they are torqued correctly.
View full procedure
Technical Service Bulletins

42RE Transmission Bolt Torque Specification Update

2010-05-15

Updated torque specifications for the 42RE transmission bolts to prevent leaks and ensure proper sealing.

2002-2013 Jeep Cherokee

Resolution: Follow the updated torque specifications provided in the service manual and use a calibrated torque wrench for accuracy.

42RE Transmission Bolt Loosening Issue

2012-08-20

Reports of transmission bolts loosening over time due to insufficient torque application.

2002-2013 Jeep Cherokee

Resolution: Apply thread locker to the bolt threads and ensure proper torque is applied during installation.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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