Chrysler 200 2015-2017 HVAC System Bolt Torque Specifications
Chrysler 200 2015-2017

Chrysler 200 2015-2017 HVAC System Bolt Torque Specifications

This page provides detailed torque specifications for bolts used in the HVAC system of the 2015-2017 Chrysler 200. Includes values for various components like the compressor, condenser, and evaporator.

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

Ac Compressor

Components related to the A/C compressor, including mounting hardware and line connections.

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent compressor housing stress.
2

A/C Line Fittings

Various, typically M8 x 1.25 or M10 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Ensure O-rings are properly lubricated and seated before tightening. Torque all line fittings to the specified value. Over-tightening can damage sealing surfaces.

Ac Condenser

Components related to the A/C condenser, including mounting hardware.

1

A/C Condenser Mounting Bolts (Small)

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Estimated value for smaller bolts. Use lower end of range for smaller bolts. Ensure bolts are tightened evenly to prevent condenser bracket stress.
2

A/C Condenser Mounting Bolts (Large)

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Estimated value for larger bolts. Use upper end of range for larger bolts. Ensure bolts are tightened evenly to prevent condenser bracket stress.

Ac Evaporator

Components related to the A/C evaporator, including housing and core fasteners.

1

A/C Evaporator Housing/Core Bolts

M5 x 0.8
Torque Value
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Use caution when tightening bolts near plastic components. Torque evenly.

Heater Core

Components related to the heater core, including housing and mounting fasteners.

1

Heater Core Mounting/Housing Bolts

M5 x 0.8
Torque Value
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Use caution when tightening bolts near plastic components. Torque evenly.

Blower Motor

Components related to the blower motor, including mounting fasteners.

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Do not over-tighten. Torque evenly.

Hvac Control

Components related to the HVAC control module and mounting fasteners.

1

HVAC Control Module/Unit Mounting Bolts

M4 x 0.7
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Use caution when tightening bolts. Do not over-tighten.

Refrigerant Circuit

Components related to the refrigerant circuit, including expansion valves, orifice tubes, receiver/dryer, and pressure sensors.

1

A/C Expansion Valve/Orifice Tube Bolts/Fittings

Various, M6 x 1.0
Torque Value
12 ft-lbs (16 N·m)
Important Notes
Ensure proper alignment and sealing of fittings and valves. Overtightening can cause damage.
2

Receiver/Dryer Mounting Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure the receiver/dryer is securely mounted to prevent vibration.
3

A/C Pressure Sensor Mounting/Fitting

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure the sensor is correctly aligned to avoid damage or leaks. Do not over-tighten.

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 important for HVAC components?

Using the correct torque specifications is crucial for ensuring proper sealing and preventing damage. Over-tightening can strip threads or crack components, leading to leaks or premature failure. Under-tightening can result in loose connections, also causing leaks or vibration issues. For example, overtightening the compressor mounting bolts could damage the compressor housing or cause excessive stress on the mounting points.

Q2

What should I do if I don't have a torque wrench?

While a torque wrench is highly recommended for accuracy, you can estimate torque by using the 'feel' of the fastener. However, this requires experience and is not ideal. For critical components like the AC compressor, evaporator or condenser, renting or borrowing a torque wrench is strongly advised. Consider it a worthwhile investment for proper HVAC repair. If you absolutely must proceed without one, ensure bolts are snug but avoid excessive force.

Q3

How often should I check the torque of HVAC components?

Generally, torque checks are not part of routine maintenance unless a component has been recently replaced or you suspect a problem. However, after replacing parts or accessing hvac components, it's a good practice to double-check torque specifications after a short period of operation, like after the first drive. This ensures everything is secure due to the settling in of fasteners or gasket material.

Q4

What if I've stripped or damaged a bolt while working on my HVAC system?

If you've stripped a bolt, do not force it further. Attempt to remove it carefully using specialized tools such as a bolt extractor. Depending on the extent of the damage, you may need to use a thread repair kit. Once removed, replace it with a new bolt of the correct size and torque it to specifications. For example, if you strip a screw on the blower motor assembly, replacing the screw is needed and care must be taken when installing the new one. Never reuse a stripped or damaged bolt.

Q5

Can I use a torque specification from another car for my Chrysler 200 HVAC system?

No, absolutely not. Torque specifications vary greatly between vehicles and even between components within the same vehicle. Always refer to the specific service manual or a reliable source for the exact specifications for your 2015-2017 Chrysler 200 HVAC system. Using incorrect torque specifications can cause serious damage and compromise system functionality. For example, using the torque specs for a Ford on a Chrysler can cause significant damage due to different materials and thread engagement rates.

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 calibrated torque wrench is essential for tightening bolts to the precise specifications required for HVAC components.

  • Adjustable torque settings
  • Accurate torque measurement
  • Various drive sizes (e.g., 1/4", 3/8")
Learn more

Socket Set

A comprehensive socket set in both standard (SAE) and metric sizes is needed to fit various bolt and fastener sizes found in the HVAC system.

  • Multiple sizes
  • Durable construction
  • Standard and metric options
Learn more

Extension Bars

Extension bars are used to reach recessed bolts or fasteners that are not accessible directly with the socket wrench.

  • Multiple lengths for varying reach
  • Secure connection to sockets
  • Durable construction
Learn more
Service Procedures

Compressor Mounting Bolt Torque

Procedure for tightening the compressor mounting bolts to the correct torque specifications.

  • Locate the compressor mounting bolts.
  • Consult torque specification chart.
  • Using the appropriate socket, tighten bolts to the specified torque setting in a cross-tightening pattern.
  • Recheck torque value after tightening all bolts.
View full procedure

Condenser Mounting Bolt Torque

Procedure for tightening the condenser mounting bolts to the correct torque specifications.

  • Locate the condenser mounting bolts.
  • Consult torque specification chart.
  • Using the appropriate socket, tighten bolts to the specified torque setting.
  • Recheck torque value after tightening all bolts.
View full procedure

Evaporator Core Mounting Bolt Torque

Procedure for tightening the evaporator core mounting bolts to the correct torque specifications.

  • Locate the evaporator core mounting bolts.
  • Consult torque specification chart.
  • Using the appropriate socket, tighten bolts to the specified torque setting.
  • Recheck torque value after tightening all bolts.
View full procedure
Technical Service Bulletins

HVAC Bolt Torque Specifications

2015-01-15

This technical bulletin outlines the proper torque specifications for various HVAC components on the 2015-2017 Chrysler 200.

2015-2017 Chrysler 200

Resolution: Consult the provided torque chart for the correct bolt specifications. Ensure all bolts are torqued to these values to prevent damage and leaks.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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