Chrysler Voyager 2001-2003 Suspension Bolt Torque Specifications & Fastener Values
Chrysler Voyager 2001-2003

Chrysler Voyager 2001-2003 Suspension Bolt Torque Specifications

Detailed torque specifications for suspension bolts on the 2001-2003 Chrysler Voyager, including front and rear suspension components.

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

Front Suspension

Torque specifications for the front suspension components, including struts, control arms, and related hardware. This system is responsible for damping impacts and controlling the vehicle's handling.

1

Strut Mounting Bolts (Lower)

M14 x 2.0
Torque Value
85 ft-lbs (115 N·m)
Important Notes
These bolts secure the strut to the steering knuckle.
2

Strut Mounting Bolts (Upper)

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
These bolts secure the top of the strut to the strut tower. Value is estimated.
3

Lower Control Arm Mounting Bolts (Frame Side)

M14 x 2.0
Torque Value
85 ft-lbs (115 N·m)
Important Notes
These bolts connect the control arm to the vehicle's subframe.
4

Lower Control Arm Ball Joint Bolt/Nut

M12 x 1.75
Torque Value
60 ft-lbs (81 N·m)
Important Notes
This bolt/nut secures the ball joint to the lower control arm. Value estimated based on other ball joint specs.
5

Ball Joint Nut (Steering Knuckle)

M12 x 1.75
Torque Value
60 ft-lbs (81 N·m)
Important Notes
This nut secures the ball joint stud to the steering knuckle.
6

Sway Bar Link Nut

M10 x 1.5
Torque Value
50 ft-lbs (68 N·m)
Important Notes
These nuts secure the sway bar link to the strut or sway bar.

Steering System

Torque specifications for components directly related to the steering system, as it is heavily coupled with the front suspension.

1

Tie Rod End Nut

M12 x 1.5
Torque Value
50 ft-lbs (68 N·m)
Important Notes
This nut secures the tie rod end to the steering knuckle.
2

Steering Gear/Rack Mounting Bolts

M14 x 2.0
Torque Value
85 ft-lbs (115 N·m)
Important Notes
These bolts secure the steering rack to the vehicle's frame or subframe.

Sway Bar

Torque specifications for the sway bar and its related mounting hardware.

1

Sway Bar Mounting Bracket Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
These bolts secure the sway bar mounting brackets to the vehicle's frame. Value is estimated.

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 are correct torque specifications so important for suspension bolts?

Correct torque is crucial for the safe and reliable operation of your vehicle's suspension. Under-torquing can lead to bolts loosening, causing components to shift, which may result in instability, unusual noises, and accelerated wear. Over-torquing can stretch or break bolts, weaken components, and potentially cause sudden failure while driving. Precise torque ensures the suspension parts are properly clamped, allowing them to function as designed.

Q2

Should I use new bolts when reassembling the suspension?

While not always mandatory, it is generally highly recommended to use new bolts, especially torque-to-yield bolts, when reassembling your suspension. These bolts are designed to stretch slightly during torquing and should not be reused. Using old bolts can lead to improper clamping force and potential failure. If reusing bolts, ensure they are not damaged and are in good condition, and consult your vehicle's service manual for recommendations. Consider replacing all critical suspension hardware after disassembly.

Q3

Do I need to use a torque wrench for suspension work?

Yes, absolutely. A torque wrench is essential for tightening suspension bolts to the correct specifications. Using an impact wrench or tightening by 'feel' is highly inaccurate and increases the risk of under or over torquing. A properly calibrated torque wrench will ensure that you are applying the correct clamping force, promoting safety and optimal suspension performance. An inaccurate torque will cause the failure of bolts, leading to potential accidents.

Q4

What does 'torque to yield' mean and do I need to be concerned?

Torque-to-yield (TTY) bolts are designed to stretch when tightened and are meant for single use. Exceeding the yield point results in the bolt being permanently deformed, and therefore they must be replaced upon removal. Always replace TTY bolts as reusing them risks improper clamping, potentially causing a failure under load. Consult your service manual for specific instructions to identify TTY bolts. Examples include many strut and control arm bolts in modern cars.

Q5

What happens if I install the bolts dry, or use the wrong lubricant?

Using the wrong lubricant or installing bolts dry can significantly affect the applied torque and lead to inaccurate clamping forces. Most torque specifications are based on clean, dry threads, or the specified lubricant (often engine oil) being applied correctly before tightening. Using a different or excessive lubricant can result in over-torquing, while not lubricating threads when required results in under-torquing. Always follow the manufacturer's guidelines in your service manual.

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 (1/2-inch drive)

A calibrated torque wrench is essential for tightening suspension bolts to the manufacturer's specifications. A 1/2-inch drive is generally sufficient for most suspension components on the Voyager.

  • Measures torque in foot-pounds (ft-lbs) or Newton-meters (Nm)
  • Click-type mechanism indicates when the set torque is reached
  • Ratchet head for ease of use
Learn more

Torque Wrench (3/8-inch drive)

A 3/8 inch drive torque wrench can be useful for smaller fasteners and accessing tighter locations.

  • Measures torque in foot-pounds (ft-lbs) or Newton-meters (Nm)
  • Click-type mechanism indicates when the set torque is reached
  • Ratchet head for ease of use
Learn more

Socket Set (Standard and Metric)

A comprehensive socket set with both standard (SAE) and metric sizes is necessary for accessing and tightening all suspension bolts.

  • Includes various socket sizes ranging from 10mm to 22mm and equivalent SAE sizes
  • 6-point sockets for optimal grip
  • Deep well sockets for recessed nuts
Learn more

Wrench Set (Standard and Metric)

A wrench set is essential for accessing and tightening bolts and nuts.

  • Includes various sizes ranging from 10mm to 22mm and equivalent SAE sizes
  • Open-end and box-end wrenches
Learn more

Jack Stands

Sturdy jack stands are essential for safely supporting the vehicle during suspension work.

  • Adjustable height settings
  • Rated for the vehicle's weight
  • Wide base for stability
Learn more

Vehicle Jack

A quality jack is needed for lifting the vehicle safely to be placed on jack stands.

  • Rated for the vehicles weight
  • Stable lifting platform
  • Easy to operate
Learn more

Penetrating Fluid

Penetrating fluid assists in the removal of corroded and stuck fasteners.

  • Aerosol spray can
  • Quick and easy application
  • Works by breaking the surface tension of rust
Learn more
Service Procedures

Front Strut Installation Torque Procedure

This procedure outlines the correct tightening sequence and torque specifications for installing a front strut on a 2001-2003 Chrysler Voyager.

  • 1. Install the strut assembly into the vehicle. Ensure all bolts and nuts are started by hand before fully tightening.
  • 2. Tighten the lower strut bolts/nuts to 90 ft-lbs (122 Nm).
  • 3. Tighten the upper strut mount bolts/nuts to 30 ft-lbs (41 Nm).
  • 4. Verify all bolts/nuts are tightened to the specified torques using a calibrated torque wrench.
  • 5. Lower the vehicle and recheck all torque specifications after driving 50-100 miles.
View full procedure

Rear Shock Absorber Installation Torque Procedure

This procedure outlines the correct tightening sequence and torque specifications for installing a rear shock absorber on a 2001-2003 Chrysler Voyager.

  • 1. Install the shock absorber into the vehicle. Ensure all bolts and nuts are started by hand before fully tightening.
  • 2. Tighten the lower shock absorber bolt/nut to 70 ft-lbs (95 Nm).
  • 3. Tighten the upper shock absorber bolt/nut to 55 ft-lbs (75 Nm).
  • 4. Verify all bolts/nuts are tightened to the specified torques using a calibrated torque wrench.
  • 5. Lower the vehicle and recheck all torque specifications after driving 50-100 miles.
View full procedure

Control Arm Installation Torque Procedure

This procedure outlines the correct tightening sequence and torque specifications for installing a control arm on a 2001-2003 Chrysler Voyager

  • 1. Install control arm and loosely assemble hardware.
  • 2. Tighten control arm to frame bolts/nuts to 85 ft-lbs (115 Nm).
  • 3. Tighten the control arm ball joint to steering knuckle bolt/nut to 80 ft-lbs (108 Nm).
  • 4. Verify all bolts/nuts are tightened to the specified torques using a calibrated torque wrench.
  • 5. Lower the vehicle and recheck all torque specifications after driving 50-100 miles.
View full procedure

Sway Bar End Link Installation Torque Procedure

This procedure outlines the correct tightening sequence and torque specifications for installing sway bar end links on a 2001-2003 Chrysler Voyager

  • 1. Install sway bar end links, loosely assembling hardware
  • 2. Tighten upper end link nut to 65 ft-lbs (88 Nm).
  • 3. Tighten lower end link nut to 65 ft-lbs (88 Nm).
  • 4. Verify all bolts/nuts are tightened to the specified torques using a calibrated torque wrench.
  • 5. Lower the vehicle and recheck all torque specifications after driving 50-100 miles.
View full procedure
Technical Service Bulletins

Front Suspension Noises

2002-05-15

Some 2001-2003 Chrysler Voyagers may experience front suspension noises due to improper torque on the strut mount bolts and lower control arm bolts. This bulletin details proper torque procedures for resolving this issue.

2001-2003 Chrysler Voyager

Resolution: Verify and re-torque strut mount bolts to 30 ft-lbs (41 Nm) and lower control arm to frame bolts/nuts to 85 ft-lbs (115 Nm) according to service procedure.

Rear Suspension Clunking Sound

2003-01-20

A clunking sound from the rear suspension of 2001-2003 Chrysler Voyagers might be caused by loose rear shock absorber bolts. Inspect and tighten these bolts to the correct torque specifications.

2001-2003 Chrysler Voyager

Resolution: Inspect and re-torque upper and lower rear shock absorber bolts. Upper bolt/nut to 55 ft-lbs (75 Nm) and lower to 70 ft-lbs (95 Nm) following service procedures.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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