Jeep Compass 2017-present Fuel System Bolt Torque Specifications & Line Fittings
Jeep Compass 2017-present

Jeep Compass 2017-present Fuel System Bolt Torque Specifications

Detailed torque specifications for the fuel system bolts on the 2017-Present Jeep Compass, including fuel rail, fuel injector, and fuel pump bolts.

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

Fuel rail and injector system

This subsystem includes components that deliver fuel to the engine's fuel injectors.

1

Fuel Rail Bolts

M6 x 1.0
Torque Value
7.4 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Injector Bolts

M8 x 1.25
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Estimated bolt size. Correct torque is necessary to prevent fuel leaks and maintain proper fuel injection.
3

Fuel Injector Rail Bolts

M6 x 1.0
Torque Value
7.4 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Proper torque is essential to prevent fuel leaks and maintain engine performance.

Fuel pump and tank system

This subsystem includes components that supply fuel to the engine.

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Value
8.8 ft-lbs (12 N·m)
Important Notes
Estimated bolt size. Correct torque is necessary to prevent fuel leaks and maintain proper fuel pressure.
2

Fuel Tank Strap Bolts

M12 x 1.75
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated bolt size. Proper torque is essential to prevent fuel tank damage and maintain safety.
3

Fuel Filler Neck Bolts

M12 x 1.75
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated bolt size. Correct torque is necessary to maintain fuel system integrity.

Fuel filter and pressure regulator system

This subsystem includes components that filter and regulate fuel pressure.

1

Fuel Filter Bolt/Nut

M10 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Estimated bolt size. Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Pressure Regulator Mounting Bolts

M8 x 1.25
Important Notes
Estimated bolt size. Correct torque is necessary to prevent fuel leaks and maintain proper fuel system function.

Fuel line and vent valve system

This subsystem includes components that deliver and vent fuel.

1

Fuel Line Fittings

M8 x 1.25
Important Notes
Estimated bolt size. Proper torque is essential to maintain fuel system integrity.
2

Fuel Tank Vent Valve Bolts

M6 x 1.0
Important Notes
Estimated bolt size. Correct torque is necessary to maintain fuel system function and safety.

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

What is the torque specification for the fuel rail bolts on a 2017-Present Jeep Compass?

The torque specification for the fuel rail bolts on a 2017-Present Jeep Compass is typically 89 in-lbs (10 Nm). Always refer to the vehicle's service manual for the exact specifications, as they may vary slightly depending on the engine model.

Q2

How often should I check the torque on fuel system components?

It is recommended to check the torque on fuel system components, such as fuel rail bolts, during routine maintenance or if you notice any fuel leaks. Regular inspections every 30,000 miles or as specified in your owner's manual can help prevent issues.

Q3

Can over-tightening fuel system bolts cause damage?

Yes, over-tightening fuel system bolts, such as those on the fuel rail, can strip threads, damage gaskets, or cause leaks. Always use a calibrated torque wrench and follow the manufacturer's specifications to avoid over-tightening.

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 tool used to apply a specific torque to a fastener, such as fuel system bolts.

  • Adjustable torque settings
  • Calibrated for accuracy
Learn more

Fuel Line Disconnect Tool

A tool designed to safely disconnect fuel lines without damaging the connectors.

  • Compatible with quick-connect fittings
  • Ergonomic design
Learn more
Service Procedures

Fuel Rail Bolt Torque Specification

Procedure to properly torque the fuel rail bolts on a 2017-Present Jeep Compass.

  • Disconnect the negative battery cable to ensure safety.
  • Remove the engine cover to access the fuel rail.
  • Use a torque wrench to tighten the fuel rail bolts to the specified torque of 8.7 Nm (77 lb-in).
  • Reinstall the engine cover and reconnect the battery cable.
View full procedure

Fuel Pump Module Torque Specification

Procedure to torque the fuel pump module bolts on a 2017-Present Jeep Compass.

  • Remove the rear seat cushion to access the fuel pump module.
  • Disconnect the electrical connector and fuel lines from the module.
  • Use a torque wrench to tighten the fuel pump module bolts to the specified torque of 10 Nm (89 lb-in).
  • Reconnect the electrical connector and fuel lines, then reinstall the rear seat cushion.
View full procedure
Technical Service Bulletins

Fuel System Bolt Torque Specification Update

2020-05-15

Updated torque specifications for fuel system components to prevent leaks and ensure proper sealing.

2017-2023 Jeep Compass

Resolution: Refer to the updated service manual for revised torque specifications and ensure all fuel system bolts are torqued to the correct values.

Fuel Rail Bolt Inspection and Replacement

2021-08-10

Inspection and replacement procedure for fuel rail bolts that may loosen over time.

2017-2022 Jeep Compass

Resolution: Inspect fuel rail bolts during routine maintenance and replace if necessary. Torque to the specified value of 8.7 Nm (77 lb-in).

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.

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