Chrysler Concorde 1998-2004 42LE Transmission Transmission Torque Specifications & Bolt Torque Values
Chrysler Concorde 1998-2004

Chrysler Concorde 1998-2004 42LE Transmission Torque Specifications

This page provides detailed torque specifications for all bolts related to the 42LE automatic transmission in 1998-2004 Chrysler Concorde vehicles. Includes pan bolts, case bolts, and valve body bolt torques.

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

These bolts secure the transmission assembly to the engine block and/or the vehicle's frame/chassis.

1

Transmission Mounting Bolts

M12 x 1.75
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Ensure proper alignment before tightening. Use a staggered pattern when tightening multiple bolts.

Transmission Case

These bolts hold together the main transmission case halves.

1

Transmission Case Bolts (General)

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Estimated torque. Consult factory service manual for exact specifications, as they may vary depending on location within the case. Tighten in a criss-cross pattern.
2

Torque Converter Housing Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated torque value. Bolt sizes and torque values may vary slightly depending on the exact location of the bolt. Consult factory service manual for exact specifications. Use a staggered sequence when tightening.

Transmission Pan

These bolts secure the transmission oil pan to the transmission case.

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Tighten in a criss-cross pattern. Do not over-tighten to avoid damaging the pan or case. Use inch-pound setting on your torque wrench, if possible.

Transmission Plugs

These are the drain and fill plugs for the transmission fluid.

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Ensure the sealing washer is in good condition. Over-tightening can damage the threads.

Valve Body

These bolts secure the valve body to the transmission case.

1

Valve Body Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Use a staggered, criss-cross pattern when tightening the bolts. Do not over-tighten.

Solenoids

These bolts secure the solenoids, speed sensors, and neutral safety switch to the transmission case.

1

Solenoid Retaining Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure solenoid is properly positioned before tightening. Do not over-tighten.
2

Input Speed Sensor Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure sensor is properly positioned before tightening. Do not over-tighten.
3

Output Speed Sensor Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure sensor is properly positioned before tightening. Do not over-tighten.
4

Neutral Safety Switch Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure switch is properly positioned before tightening. Do not over-tighten.
5

Transmission Solenoid Pack Mounting Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure solenoid pack is properly positioned before tightening. Do not over-tighten.

Park Rod

These bolts secure the park rod retaining bracket to the transmission case.

1

Park Rod Retaining Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the park rod functions after tightening. Do not over-tighten.

Cooler Lines

These fittings connect the transmission cooler lines to the transmission case.

1

Transmission Cooler Line Fittings

Varies
Torque Value
17.5 ft-lbs (24 N·m)
Important Notes
Estimated torque. Always verify the fitting specifications, as it may vary depending on the type of fitting. Over-tightening can damage the fittings. Use a backup wrench on the cooler line to prevent twisting or distortion of the line.

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

Why is using the correct torque specification so important for the 42LE transmission?

Using the correct torque specification is critical for the 42LE transmission to ensure proper clamping force, prevent leaks, and maintain the structural integrity of the unit. Over-torquing can lead to stripped threads, cracked housings, or damaged gaskets. Under-torquing can cause bolts to loosen, resulting in fluid leaks, component misalignment, and ultimately, transmission failure. For example, an improperly torqued valve body bolt could cause internal pressure leaks, leading to erratic shifting.

Q2

Can I use a generic torque specification if I don't have the exact 42LE specs?

No, it is highly discouraged to use generic torque specifications. The 42LE transmission has specific tolerances and requirements. Using generic values can easily lead to over or under-torquing, which can damage the transmission. Always refer to the specific service manual or torque specifications chart for the 42LE transmission in your 1998-2004 Chrysler Concorde. For instance, the pan bolts have a different torque spec than the bellhousing bolts.

Q3

What tools are necessary for torquing 42LE transmission bolts?

You will need a calibrated torque wrench that covers the required torque ranges, various sockets suitable for the bolt heads, and possibly extensions for reaching recessed areas. Consider using a torque wrench adapter for some applications to properly reach bolts at tight angles. Ensure your torque wrench is accurate and within calibration.

Q4

Should I use threadlocker when reassembling the 42LE transmission?

Threadlocker is sometimes recommended for specific bolts on the 42LE transmission, particularly in areas subject to vibration. Consult the service manual for details. For example, some valve body bolts might require a medium-strength threadlocker to prevent them from loosening over time. However, many areas DO NOT require it and should be installed clean and dry.

Q5

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

Generally, it's not required to routinely re-check bolt torque unless a specific service event has occurred or there are signs of a leak. However, it is good practice to check the bolt torque during a routine transmission service like fluid and filter change, especially after initial installation or repair. If your vehicle experiences severe vibrations, periodic checks are recommended.

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 torque wrench for accurate bolt tightening

  • Range: 10-100 ft-lbs
  • Accuracy: ± 2%
Learn more

Socket Set

A set of sockets for various bolt sizes

  • Sizes: 10mm, 12mm, 14mm
  • Material: Chrome Vanadium
Learn more

Breaker Bar

A long-handled breaker bar for added leverage

  • Length: 24 inches
  • Material: Steel
Learn more
Service Procedures

42LE Transmission Pan Bolt Torque Specification

Procedure for tightening transmission pan bolts to specification

  • Remove transmission pan and filter
  • Clean pan and filter mounting surfaces
  • Apply threadlocker to pan bolts
  • Tighten pan bolts in sequence to 20 ft-lbs
  • Reinstall transmission pan and filter
View full procedure

42LE Transmission Filter Replacement

Procedure for replacing transmission filter

  • Remove transmission pan and filter
  • Dispose of old filter
  • Install new filter
  • Reinstall transmission pan
View full procedure
Technical Service Bulletins

42LE Transmission Pan Bolt Torque Specification Update

2002-03-15

Update to transmission pan bolt torque specification

1998-2002 Chrysler Concorde

Resolution: Tighten transmission pan bolts to 20 ft-lbs in sequence

42LE Transmission Filter Clogging Issue

2001-09-01

Issue with transmission filter clogging due to debris

1999-2001 Chrysler Concorde

Resolution: Replace transmission filter with updated design

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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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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