Buick Regal 2011-2017 Brake System Bolt Torque Specifications & Fastener Values
Buick Regal 2011-2017

Buick Regal 2011-2017 Brake System Bolt Torque Specifications

This page provides detailed torque specifications for various brake components on the 2011-2017 Buick Regal, including caliper bolts, bracket bolts, and rotor screws. Ensure proper installation and safe operation by adhering to these guidelines.

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 Brakes

Torque specifications for components of the front brake system, including calipers, rotors, and sensors.

1

Caliper Guide Pin Bolts

M10 x 1.25
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Secures the caliper to the caliper bracket. Critical for even pad wear and consistent braking. Estimated value based on similar applications.
2

Caliper Mounting Bracket Bolts (To Steering Knuckle)

M14 x 1.5
Torque Value
125 ft-lbs (170 N·m)
Important Notes
Attaches the caliper bracket to the steering knuckle. Critical safety fastener. Estimated value based on similar applications.
3

Brake Hose Banjo Bolt (Caliper)

M10 x 1.0
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Secures the brake hose to the caliper. Proper torque is crucial for a leak-free seal. Do not overtighten, can damage sealing washers.
4

Brake Rotor Retaining Screw

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Holds the rotor to the hub during assembly. Not structural during operation. Estimated value based on similar applications.
5

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Secures the wheel speed sensor. Do not overtighten, as it is a delicate component. Estimated value based on similar applications.

Rear Brakes

Torque specifications for components of the rear brake system, including calipers, rotors, and sensors.

1

Caliper Guide Pin Bolts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the rear caliper to the caliper bracket. Proper torque is essential for proper braking. Estimated value based on similar applications.
2

Caliper Mounting Bracket Bolts (To Trailing Arm/Axle)

M12 x 1.75
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Attaches the rear caliper bracket to the vehicle's rear suspension. Critical safety fastener. Estimated value based on similar applications.
3

Brake Hose Banjo Bolt (Caliper)

M10 x 1.0
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Secures the brake hose to the rear caliper. Requires proper torque to achieve a leak-free seal without damaging the sealing washers. Estimated value based on similar applications.
4

Parking Brake Cable Bracket Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Secures the parking brake cable bracket to the caliper bracket or backing plate. Proper torque prevents the bracket from shifting. Estimated value based on similar applications.
5

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Secures the rear wheel speed sensor. Do not overtighten. Estimated value based on similar applications.
6

Brake Rotor Retaining Screw

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Holds the rotor to the hub during assembly. Not structural during operation. Estimated value based on similar applications.

General Brake System

Torque specifications for general brake system components including lines, master cylinder, and ABS module.

1

Brake Line Fittings (at Master Cylinder and ABS Module)

M10 x 1.0
Torque Value
13.5 ft-lbs (18 N·m)
Important Notes
Critical for maintaining a leak-proof hydraulic system. Use a flare nut wrench to prevent damage. Estimated value based on industry standards.
2

ABS Module Mounting Bolts

M6 x 1.0
Torque Value
14 ft-lbs (19 N·m)
Important Notes
Holds the ABS module securely in place. Proper torque is important for correct ABS function. Estimated value based on similar ABS modules.
3

Master Cylinder Mounting Nuts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the master cylinder to the brake booster. It's a critical component that needs to be properly mounted. Estimated value based on similar applications.
4

Brake Booster Mounting Nuts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Secures the brake booster to the firewall. Proper torque is crucial for correct brake pedal feel and operation. Estimated value based on similar applications.

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 for brake bolts important?

Using the correct torque specification is crucial for brake system safety and performance. Over-tightening bolts can stretch or break them, leading to component failure and potential loss of braking ability. Under-tightening can cause bolts to loosen over time, creating noise, vibration, and also potentially leading to component failure. Precise torque ensures proper clamping force and optimal braking.

Q2

What happens if I over-torque brake caliper bolts?

Over-torquing brake caliper bolts can damage the threads in the caliper or the mounting bracket, leading to a stripped thread and requiring replacement of these costly components. It can also cause bolt fatigue and potential fracture under stress. Additionally, an over-torqued bolt might not provide the correct clamping force.

Q3

What happens if I under-torque brake caliper bolts?

Under-torquing brake caliper bolts can cause the caliper to shift or vibrate during braking, potentially leading to uneven pad wear, premature brake failure, or a loss of braking power. You might also experience noises, like clunking or rattling. Bolts might loosen completely, which can be extremely dangerous.

Q4

Should I use threadlocker on brake bolts?

It is generally recommended to use a medium-strength threadlocker (like Loctite 242) on brake caliper mounting bolts and caliper bracket bolts unless otherwise specified by the manufacturer. This prevents the bolts from loosening due to vibration and heat cycling. Always follow the manufacturer's recommendations for threadlocker usage.

Q5

How often should I check the torque on my brake bolts?

It's good practice to check the torque on brake bolts after any brake service, and then again after the first 50-100 miles of driving. Additionally, a periodic check during routine maintenance, such as with an oil change or tire rotation, is recommended. This will ensure safe operation and will identify any issues that may have started after installation.

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 (3/8" Drive)

A calibrated torque wrench for accurately tightening bolts to specified torque values.

  • Ratchet mechanism for easy use
  • Wide torque range suitable for brake components
Learn more

Torque Wrench (1/2" Drive)

A calibrated torque wrench, typically for larger bolts.

  • Higher torque range for larger bolts.
  • Durable construction.
Learn more

Socket Set (Metric)

A set of metric sockets to fit the various bolt heads on the brake system.

  • Includes common sizes for brake hardware
  • Durable construction for repetitive use
Learn more

Brake Caliper Hanger

A hook or hanger designed to hold the brake caliper to prevent damage to the brake hose and other brake components while performing brake work.

  • Prevents strain on brake lines
  • Provides a secure hold for the caliper
Learn more
Service Procedures

Front Brake Caliper Bracket Bolt Torque

Procedure for tightening the front brake caliper bracket bolts to the correct torque specification. These brackets secure the caliper to the steering knuckle.

  • Locate the front brake caliper bracket bolts.
  • Use a metric socket that fits the bolt head.
  • Using the appropriate torque wrench, tighten the bolts to 125 Nm (92 lb-ft)
  • Double check torque with the torque wrench.
View full procedure

Front Brake Caliper Guide Pin Bolt Torque

Procedure for tightening the front brake caliper guide pin bolts to the correct torque specification. These pins hold the caliper and brake pads in place.

  • Locate the front brake caliper guide pin bolts.
  • Use a metric socket that fits the bolt head.
  • Using the appropriate torque wrench, tighten the guide pin bolts to 30 Nm (22 lb-ft).
  • Double check torque with the torque wrench.
View full procedure

Rear Brake Caliper Bracket Bolt Torque

Procedure for tightening the rear brake caliper bracket bolts to the correct torque specification. These brackets secure the caliper to the rear axle.

  • Locate the rear brake caliper bracket bolts.
  • Use a metric socket that fits the bolt head.
  • Using the appropriate torque wrench, tighten the bracket bolts to 95 Nm (70 lb-ft).
  • Double check torque with the torque wrench.
View full procedure

Rear Brake Caliper Guide Pin Bolt Torque

Procedure for tightening the rear brake caliper guide pin bolts to the correct torque specification. These pins hold the caliper and brake pads in place.

  • Locate the rear brake caliper guide pin bolts.
  • Use a metric socket that fits the bolt head.
  • Using the appropriate torque wrench, tighten the guide pin bolts to 30 Nm (22 lb-ft).
  • Double check torque with the torque wrench.
View full procedure
Technical Service Bulletins

Brake Vibration on Light Application

2013-03-15

Some 2011-2013 Regal models may experience vibration during light braking. This may be related to disc runout.

2011-2013 Buick Regal

Resolution: Inspect brake rotors for runout and replace if out of specification. Ensure proper torque of all brake components and the proper break in procedure.

Rear Brake Squeal During Low Speed Stops

2015-07-22

Certain 2014-2015 Regal vehicles may exhibit a squealing noise from the rear brakes during low-speed stops, often caused by glazing.

2014-2015 Buick Regal

Resolution: Inspect brake pads for glazing. If necessary, install updated brake pads and ensure proper lubrication of all moving brake components. Verify the proper torque specifications on all bolts.

ABS Sensor Connector Corrosion

2016-11-10

Corrosion may be found in the ABS sensor connectors on 2015-2017 Buick Regal, resulting in intermittent ABS malfunctions.

2015-2017 Buick Regal

Resolution: Inspect ABS sensor connectors for corrosion. Clean the connectors and apply dielectric grease. Ensure all brake components are properly torqued after sensor replacement.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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