Dodge Caliber 2007-2012 2.4L Engine Bolt Torque Specifications & Fastener Values
Dodge Caliber 2007-2012

Dodge Caliber 2007-2012 2.4L Engine Bolt Torque Specifications

Comprehensive torque specifications for various bolts on the 2.4L engine of the 2007-2012 Dodge Caliber, including cylinder head bolts, main bearing cap bolts, connecting rod bolts, and other critical fasteners.

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

Specifications for the cylinder head, including bolts and related components.

1

Cylinder Head Bolts

M11 x 1.5
Important Notes
Tighten bolts in the correct sequence. Torque to 18 ft-lbs (24 Nm), then tighten an additional 90 degrees, then an additional 90 degrees.
2

Cylinder Head Oil Gallery Plug

M10 x 1.25
Torque Value
11 ft-lbs (15 N·m)
Important Notes
Estimated value. Ensure plug sealing surface is clean.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Value
21 ft-lbs (28 N·m)
Important Notes
Tighten bolts evenly to ensure proper rocker arm function.
4

Camshaft Bearing Cap Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Tighten evenly in sequence to avoid camshaft distortion.

Engine Block

Specifications for components attached to the engine block.

1

Main Bearing Bolts

M12 x 1.75
Torque Value
85 ft-lbs (115 N·m)
Important Notes
Ensure proper main bearing alignment. Tighten in sequence.
2

Oil Pan Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Tighten in a criss-cross pattern to avoid leaks.
3

Oil Drain Plug

M14 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Use a new sealing washer each time.
4

Water Pump Bolts

M8 x 1.25
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Tighten evenly to ensure proper seal.
5

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Ensure sensor is properly positioned.
6

Knock Sensor

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Ensure proper sensor contact and avoid overtightening.

Crankshaft And Connecting Rods

Specifications for components related to the crankshaft and connecting rods.

1

Connecting Rod Nuts

M9 x 1.0
Important Notes
Tighten in the correct sequence. Torque to 20 ft-lbs (27 Nm), then tighten an additional 60 degrees.
2

Flywheel Bolts

M10 x 1.5
Torque Value
65 ft-lbs (88 N·m)
Important Notes
Tighten in a star pattern.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Value
105 ft-lbs (142 N·m)
Important Notes
Ensure pulley is seated correctly.

Timing System

Specifications for components related to the timing of the engine.

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Ensure correct tensioner operation.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Ensure proper sprocket alignment.

Intake And Exhaust

Specifications for components related to the intake and exhaust systems.

1

Intake Manifold Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Tighten in a criss-cross pattern.
2

Throttle Body Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Tighten evenly to prevent air leaks.
3

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Value
26 ft-lbs (35 N·m)
Important Notes
Tighten in a sequence starting from the center out.
4

EGR Valve Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure proper sealing between the valve and manifold.

Fuel System

Specifications for components related to the fuel system.

1

Fuel Rail Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure fuel rail is properly positioned.
2

Fuel Injector Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure injector is properly seated.

Ignition System

Specifications for components related to the ignition system.

1

Spark Plugs

M14 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Use a torque wrench for correct compression sealing.
2

Ignition Coil Bolt

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure coil is properly seated and secured.

Cooling System

Specifications for components related to the cooling system.

1

Water Pump Pulley Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure pulley is properly aligned.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure proper sealing to prevent coolant leaks.
3

Coolant Temperature Sensor

M10 x 1.0
Torque Value
13 ft-lbs (18 N·m)
Important Notes
Estimated value. Avoid overtightening, ensure sensor seals properly.

Accessories

Specifications for accessory drive system components.

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M8 x 1.25
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Ensure tensioner is correctly aligned and secured.

Valve Cover

Specifications for the valve cover.

1

Valve Cover Bolts

M6 x 1.0
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Tighten bolts evenly to avoid warping and leaks
2

Camshaft Position Sensor Bolt

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Ensure sensor is properly positioned.

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 is crucial to ensure proper clamping force. Under-torquing can lead to leaks, component loosening, and potential engine damage. Over-torquing can cause bolts to stretch or break, damaging the threads in the engine block, cylinder head, or other components. For example, improperly torqued head bolts could lead to a blown head gasket. Always use a calibrated torque wrench.

Q2

What should I do if a bolt feels like it is going to strip?

If a bolt feels like it is stripping, stop tightening it immediately. Stripped threads require repair, which may involve using a thread repair kit or having the component professionally repaired. Forcing a stripped bolt can cause further damage. Before installing a new bolt, check if the old bolt had any deformation from overtightening or damage. Also, inspect the threads of the component and clean them with a thread cleaner.

Q3

Can I reuse old engine bolts?

Some bolts are designed to be reused while others, particularly torque-to-yield (TTY) bolts, should be replaced. TTY bolts stretch when torqued and shouldn't be reused as they may have lost their clamping force capabilities. Many bolts used on the 2.4L engine, like head bolts, are TTY and require replacement. Always refer to the factory service manual for the specific bolt in question.

Q4

How often should I check the torque on critical engine bolts?

Unless specified differently in the service manual, you do not need to routinely check the torque of most bolts after initial installation, except for applications that see vibration or thermal cycling. It is a good practice to re-torque cylinder head bolts after the initial engine run-in period, as indicated by your vehicle's service manual, since the components have experienced heat cycles which may result in slight relaxation in the bolts. Always refer to the manufacturer recommendations for any specific bolt inspection schedules.

Q5

What type of torque wrench should I use?

A calibrated torque wrench is essential for proper torqueing. A click-type torque wrench is the most common and easy to use, as it will click when the desired torque is reached. Dial-type torque wrenches can be more precise but require more skill to use correctly. Always ensure your torque wrench is within its calibration range, and never use an extension or cheater bar on the wrench as this will change the torque value.

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 specified values.

  • Adjustable torque settings
  • Click-type mechanism for accurate readings
  • Wide torque range suitable for engine components
Learn more

Torque Wrench (3/8-inch Drive)

A smaller torque wrench is helpful for bolts with lower torque values.

  • Adjustable torque settings
  • Click-type mechanism for accurate readings
  • Smaller size for access to tight spaces
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is required to fit the various bolt heads on the engine.

  • Various sizes for different bolts
  • 6-point sockets for better grip
  • Deep sockets for reaching recessed bolts
Learn more

Wrench Set (Metric)

A set of open-ended and box-end wrenches is helpful to hold nuts/bolts when using the torque wrench.

  • Various sizes for different bolts and nuts
  • Durable construction for high torque applications
  • Combination wrenches for versatile use
Learn more

Extension Bars

Extension bars allow for reaching recessed bolts.

  • Various lengths
  • Durable construction
Learn more

Universal Joint

A universal joint can make reaching bolts at an angle easier.

  • Allows socket access at an angle
  • Durable construction
Learn more
Service Procedures

Cylinder Head Bolt Tightening Procedure

Proper tightening of cylinder head bolts is crucial for engine sealing and performance. This procedure outlines the correct torque sequence and values for the 2.4L engine in the Dodge Caliber.

  • Clean all bolt threads and mating surfaces.
  • Install cylinder head and new bolts, tighten all bolts finger tight.
  • Tighten all bolts, in sequence, to 22 ft-lbs (30 Nm).
  • Tighten all bolts, in sequence, an additional 90 degrees.
  • Tighten all bolts, in sequence, an additional 90 degrees.
View full procedure

Connecting Rod Bolt Tightening Procedure

Connecting rod bolts require a precise tightening procedure to ensure proper bearing clearance and prevent engine damage. The procedure includes initial torque and final angle tightening for the 2.4L engine.

  • Clean all bolt threads and mating surfaces.
  • Install connecting rod cap and bolts, tighten all bolts finger tight.
  • Tighten all bolts to 15 ft-lbs (20 Nm).
  • Tighten all bolts an additional 90 degrees.
View full procedure

Main Bearing Cap Bolt Tightening Procedure

Proper tightening of the main bearing cap bolts is critical to crankshaft function. This procedure provides the initial torque and final angle values for the 2.4L engine.

  • Clean all bolt threads and mating surfaces.
  • Install main bearing caps with bolts, tighten all bolts finger tight.
  • Tighten all bolts, in sequence, to 22 ft-lbs (30 Nm).
  • Tighten all bolts, in sequence, an additional 90 degrees.
View full procedure

Intake Manifold Bolt Tightening Procedure

Proper tightening of the intake manifold bolts is essential to prevent vacuum leaks.

  • Clean all bolt threads and mating surfaces.
  • Install intake manifold and bolts, tighten all bolts finger tight.
  • Tighten all bolts, in sequence, to 9 ft-lbs (12 Nm).
View full procedure

Exhaust Manifold Bolt Tightening Procedure

Proper tightening of the exhaust manifold bolts is critical to prevent exhaust leaks.

  • Clean all bolt threads and mating surfaces.
  • Install exhaust manifold and bolts, tighten all bolts finger tight.
  • Tighten all bolts, in sequence, to 23 ft-lbs (31 Nm).
View full procedure
Technical Service Bulletins

Engine Oil Consumption Issues

2009-07-15

Some 2.4L engines may exhibit excessive oil consumption due to piston ring issues. This bulletin outlines symptoms and a potential repair procedure.

2007-2009

Resolution: Inspect piston rings. Replacement of piston rings may be necessary.

Cylinder Head Bolt Failure

2010-03-01

Reports of cylinder head bolts failing, leading to coolant leaks and engine damage, have been reported in certain 2.4L engines. Check torque specifications prior to re-installing cylinder head bolts.

2007-2010

Resolution: Always replace cylinder head bolts when removed. Follow specific torque procedures.

Intake Manifold Leaks

2011-11-20

Some 2.4L engines may experience intake manifold leaks. Proper tightening to the recommended torque specification should correct this.

2008-2011

Resolution: Replace the intake manifold gasket and torque bolts to 9 ft-lbs (12 Nm) following proper sequence.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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