Chrysler Pacifica 2017-present 3.6L Engine Bolt Torque Specifications & Fastener Values
Chrysler Pacifica 2017-present

Chrysler Pacifica 2017-present 3.6L Engine Bolt Torque Specifications

Comprehensive guide to bolt torque specifications for the 3.6L V6 engine in the 2017-Present Chrysler Pacifica. Includes torque values for various engine 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

Cylinder Head

Fasteners related to securing the cylinder heads to the engine block. These are critical for combustion sealing.

1

Cylinder Head Bolts

M12 x 1.75
Important Notes
Apply torque in a specific sequence. Follow the factory service manual procedure precisely, including the final angle tightening procedure. Improper procedure can cause head gasket failure or warping.

Engine Block

Fasteners related to the main engine block components.

1

Main Bearing Cap Bolts

M12 x 1.5
Torque Value
100 ft-lbs (136 N·m)
Important Notes
Tighten in a specific sequence to ensure proper bearing crush. Refer to the service manual. Improper torque can lead to crankshaft bearing failure.
2

Oil Pan Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Use a criss-cross pattern when tightening. Proper torque prevents oil leaks. Overtightening can distort the pan flange.
3

Oil Drain Plug

M14 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Always use a new sealing washer. Do not overtighten to avoid stripping the threads on the pan or cracking the plug.

Connecting Rods

Fasteners associated with the connecting rods and their attachment to the crankshaft.

1

Connecting Rod Nuts

M9 x 1.0
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Proper torque is essential to prevent rod bearing failure. Confirm the proper procedure in the service manual.

Rotating Assembly

Fasteners related to the engine's rotating components.

1

Flywheel Bolts

M10 x 1.5
Torque Value
60 ft-lbs (81 N·m)
Important Notes
Use a star pattern to ensure even tightening. Improper torque can cause vibration and damage the flywheel/flexplate and/or crankshaft.
2

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Value
130 ft-lbs (176 N·m)
Important Notes
Ensure proper alignment of the pulley/balancer. Improper torque can cause vibrations and damage to the crankshaft.

Valve Train

Fasteners related to the valve train components.

1

Valve Cover Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even sealing. Overtightening can crack the valve cover or cause leaks.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Value
90 ft-lbs (122 N·m)
Important Notes
Ensure proper camshaft timing. Improper torque can cause timing issues.
3

Rocker Arms/Shaft Bolts

M8 x 1.25
Torque Value
21 ft-lbs (28 N·m)
Important Notes
Tighten to the proper spec to ensure correct valve actuation and prevent damage.
4

Variable Valve Timing (VVT) Solenoid Bolt

M6 x 1.0
Torque Value
6.6 ft-lbs (9 N·m)
Important Notes
Ensure proper sealing of the solenoid. Overtightening can damage the solenoid.

Timing System

Fasteners related to the engine's timing components.

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Proper torque is essential for maintaining correct belt/chain tension. Refer to service manual for specific instructions.
2

Timing Chain Guide Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Essential for keeping the timing chain properly aligned. Overtightening may damage the guide or mounting.

Intake System

Fasteners related to the intake system components.

1

Intake Manifold Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Tighten in a specific sequence to ensure even sealing. Overtightening may cause vacuum leaks.
2

Throttle Body Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure proper sealing to prevent vacuum leaks. Do not overtighten.
3

EGR Valve Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sealing. Over-tightening can damage the threads.

Exhaust System

Fasteners related to the exhaust system components.

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Use proper tightening sequence to prevent leaks and gasket damage. Check for warpage on mating surfaces.

Fuel System

Fasteners related to the fuel delivery system.

1

Fuel Rail Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure proper sealing to prevent fuel leaks. Do not overtighten.
2

Fuel Injector Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure proper injector sealing and seating. Over-tightening can crack the injector.

Ignition System

Fasteners related to the engine's ignition components.

1

Spark Plugs

M14 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Proper torque is crucial for heat transfer and sealing. Over-tightening can damage threads and spark plug.
2

Ignition Coil Bolt

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure a secure electrical connection. Over-tightening may damage the coil mounting or housing.

Cooling System

Fasteners related to the engine's cooling system.

1

Water Pump Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure proper sealing of the water pump. Over-tightening can damage the pump or block.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Ensure the pulley is properly aligned. Overtightening can damage the pulley.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Value
8.75 ft-lbs (12 N·m)
Important Notes
Proper sealing is crucial to prevent coolant leaks. Over-tightening may crack the housing.
4

Coolant Temperature Sensor

M12 x 1.5
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sealing. Improper torque may cause coolant leaks.

Accessory Drive

Fasteners related to the accessory drive system.

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Proper torque ensures correct belt tension and prevents damage. Always use proper tensioning procedure.
2

Drive Belt Idler Pulley Bolt

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Ensure the pulley spins freely. Overtightening may damage pulley or mounting.

Sensors

Fasteners related to critical engine sensors.

1

Crankshaft Position Sensor (CKP) Bolt

M6 x 1.0
Torque Value
6.6 ft-lbs (9 N·m)
Important Notes
Proper torque is crucial for accurate sensor readings and preventing misalignment.
2

Camshaft Position Sensor (CMP) Bolt

M6 x 1.0
Torque Value
6.6 ft-lbs (9 N·m)
Important Notes
Proper torque is critical for sensor accuracy and prevents misalignment.
3

Knock Sensor Bolt

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Ensure proper torque for accurate sensor readings and to avoid damaging sensor.

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?

Using the correct torque specification ensures proper clamping force, preventing leaks, component failure, and damage to threads. Overtightening can strip threads or distort components, while undertightening can lead to loosening and failure. For example, overtightening a cylinder head bolt could warp the head, while undertightening could cause a head gasket leak.

Q2

What tools are required to accurately torque bolts?

You will need a calibrated torque wrench, sockets of the correct size (both standard and deep well sockets may be required), and possibly extensions. For critical fasteners, an angle meter may also be necessary. Always verify the torque wrench is calibrated according to the manufacturer's recommendations and periodically inspect for signs of wear.

Q3

What does 'torque to yield' mean and how does it affect the tightening process?

Torque-to-yield (TTY) bolts are designed to stretch when tightened to their specified torque and angle. These bolts are designed for one-time use and must be replaced after being loosened. Ignoring this can lead to improper clamping force and potential failures. Example: cylinder head bolts are usually TTY.

Q4

Do I need to apply any lubricants before tightening bolts?

The torque specifications are usually given with dry threads. If lubricant is required, it will be clearly stated in the service manual. Applying lubrication when not required can drastically increase clamping force and possibly cause thread stripping. Always refer to the service manual instructions.

Q5

What should I do if I suspect a bolt has been over-torqued?

If you suspect a bolt has been over-torqued, it’s best to replace it. Inspect the threads for damage on both the bolt and the tapped hole. Also, re-torque all the surrounding bolts to the correct specification. If a tapped hole or the surface is damaged, further repair will be required.

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 accurately tightening bolts to their specified torque values.

  • Wide torque range (typically 20-150 ft-lbs)
  • Click-type mechanism for accurate torque application
  • Easy to read markings
Learn more

Torque Wrench (3/8 inch drive)

A smaller torque wrench for bolts that do not require very high torque settings.

  • Lower torque range (typically 5-75 ft-lbs)
  • Click-type mechanism for accurate torque application
  • Smaller form factor for tighter spaces
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets in various sizes is needed to access all bolts on the 3.6L engine.

  • Variety of socket sizes including 8mm, 10mm, 13mm, 15mm, 16mm, 18mm
  • 6-point sockets for secure grip
  • Durable construction
Learn more

Wrench Set (Metric)

A wrench set of various metric sizes is important for securing bolts without the use of a torque wrench

  • Variety of wrench sizes including 8mm, 10mm, 13mm, 15mm, 16mm, 18mm
  • Standard open-ended and box-ended wrenches
  • Durable construction
Learn more
Service Procedures

Cylinder Head Bolt Torque Procedure

Detailed steps on tightening the cylinder head bolts to the correct specification and sequence.

  • 1. Clean bolt threads thoroughly.
  • 2. Install cylinder head bolts.
  • 3. Torque all bolts to 22 ft-lbs using the proper sequence.
  • 4. Torque all bolts to 45 ft-lbs using the proper sequence.
  • 5. Rotate all bolts an additional 90 degrees using the proper sequence.
  • 6. Rotate all bolts an additional 90 degrees using the proper sequence.
View full procedure

Intake Manifold Bolt Torque Procedure

Detailed steps on tightening the intake manifold bolts to the correct specification and sequence.

  • 1. Clean bolt threads thoroughly.
  • 2. Install intake manifold bolts loosely.
  • 3. Torque all bolts to 80 in-lbs using the proper sequence.
  • 4. Torque all bolts to 106 in-lbs using the proper sequence.
View full procedure

Exhaust Manifold Bolt Torque Procedure

Detailed steps on tightening the exhaust manifold bolts to the correct specification and sequence.

  • 1. Clean bolt threads thoroughly.
  • 2. Install exhaust manifold bolts loosely.
  • 3. Torque all bolts to 20 ft-lbs using the proper sequence.
View full procedure

Oil Pan Bolt Torque Procedure

Detailed steps on tightening the oil pan bolts to the correct specification and sequence.

  • 1. Clean bolt threads thoroughly.
  • 2. Install oil pan bolts loosely.
  • 3. Torque all bolts to 105 in-lbs using the proper sequence.
View full procedure
Technical Service Bulletins

Engine ticking noise

2022-05-15

Some 2017-2021 models may have an engine ticking noise related to the lifters.

2017-2021

Resolution: Inspect and replace lifters, check rocker arms and adjust

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.

Facebook Contact
15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Chrysler Specs. All rights reserved.

Privacy Policy Terms of Service