Dodge Sprinter 2018-present Electrical System Bolt Torque Specifications & Ground Points
Dodge Sprinter 2018-present

Dodge Sprinter 2018-present Electrical System Bolt Torque Specifications

Detailed torque specifications for electrical bolts on the 2018-Present Dodge Sprinter, including battery terminals, grounding points, and other critical electrical connections.

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

Ignition System

The ignition system is responsible for generating the high voltage needed to create a spark in the spark plugs, ensuring proper engine combustion. This subsystem includes components like the ignition coil and related fasteners.

1

Ignition Coil Bolt

M6 x 1.0
Torque Value
5.83 ft-lbs (8 N·m)
Important Notes
Ensures a secure electrical connection and prevents arcing or misfires.

Battery System

The battery system provides the primary power source for the vehicle's electrical components. Proper torque on battery terminal nuts ensures reliable electrical connections.

1

Battery Terminal Nuts

M6 x 1.0
Torque Value
5.83 ft-lbs (8 N·m)
Important Notes
Prevents voltage drops, corrosion, or loose connections that could lead to electrical failures.

Starter System

The starter system is responsible for initiating engine cranking. Proper torque on starter motor mounting bolts ensures secure installation and prevents misalignment.

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Prevents misalignment or vibration that could damage electrical connections or the starter itself.

Charging System

The charging system, including the alternator, generates electrical power to charge the battery and power the vehicle's electrical systems. Proper torque on alternator mounting bolts ensures secure installation.

1

Alternator Mounting Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Prevents belt misalignment, vibration, or electrical connection issues.

Ac System

The A/C system includes electrically driven components like the compressor and sensors. Proper torque on mounting bolts and fittings ensures secure connections and prevents leaks.

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Ensures secure mounting and prevents electrical connection issues.
2

A/C Line Fittings

M6 x 1.0
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Prevents refrigerant leaks and electrical malfunctions.

Grounding System

The grounding system ensures proper electrical grounding throughout the vehicle. Proper torque on ground strap bolts ensures secure connections and prevents electrical issues.

1

Ground Strap Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Prevents voltage drops, interference, or component failures.

Fuse And Relay System

The fuse and relay system protects and controls the vehicle's electrical circuits. Proper torque on fuse box mounting bolts ensures secure installation and prevents vibration damage.

1

Fuse Box Mounting Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Prevents vibration or movement that could damage connections.

Ecu System

The Engine Control Unit (ECU) is the brain of the vehicle's electrical system, controlling engine and transmission functions. Proper torque on ECU mounting bolts ensures secure installation and prevents vibration damage.

1

ECU Mounting Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Prevents vibration or movement that could damage internal components or connections.

Wiring Harness System

The wiring harness system secures electrical wiring to the vehicle's frame or body. Proper torque on wiring harness clamp bolts prevents chafing, vibration damage, or electrical shorts.

1

Wiring Harness Clamp Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Prevents chafing, vibration damage, or electrical shorts.

Sensor System

The sensor system provides critical input to the ECU for engine and transmission control. Proper torque on sensor mounting bolts ensures secure connections and accurate readings.

1

Sensor Mounting Bolts (e.g., Crankshaft Position Sensor, Camshaft Position Sensor)

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Ensures accurate readings and prevents electrical or performance issues.

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 recommended torque for electrical ground bolts on a 2018-Present Dodge Sprinter?

The recommended torque for electrical ground bolts on a 2018-Present Dodge Sprinter is typically between 8-12 Nm (6-9 ft-lbs). Always refer to the vehicle's service manual for specific torque values, as they may vary depending on the bolt size and location.

Q2

How often should I check the torque on electrical connections?

It is recommended to check the torque on critical electrical connections, such as battery terminals and ground points, during routine maintenance or after any repair work. Loose connections can lead to electrical faults, so inspect them every 12 months or 15,000 miles, whichever comes first.

Q3

Can over-tightening electrical bolts cause damage?

Yes, over-tightening electrical bolts can strip threads, damage components, or crack housings. 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

Digital Torque Wrench

A precision tool for applying the correct torque to electrical bolts.

  • Adjustable torque settings
  • Digital display for accurate readings
Learn more

Insulated Socket Set

A set of sockets designed for electrical work to prevent short circuits.

  • Insulated handles
  • Multiple socket sizes
Learn more

Torque Angle Gauge

A tool used to measure the angle of rotation when tightening bolts.

  • Angle measurement up to 360 degrees
  • Magnetic base for easy attachment
Learn more
Service Procedures

Torque Application for Battery Terminal Bolts

Procedure to ensure proper torque is applied to the battery terminal bolts.

  • Disconnect the negative battery terminal.
  • Clean the battery terminals and bolts.
  • Apply the specified torque using a digital torque wrench.
  • Reconnect the negative battery terminal.
View full procedure

Torque Application for Alternator Mounting Bolts

Procedure to ensure proper torque is applied to the alternator mounting bolts.

  • Locate the alternator mounting bolts.
  • Use an insulated socket set to loosen the bolts.
  • Apply the specified torque using a digital torque wrench.
  • Verify the alternator is securely mounted.
View full procedure

Torque Application for Grounding Bolts

Procedure to ensure proper torque is applied to the grounding bolts.

  • Locate the grounding bolts on the chassis.
  • Clean the grounding points and bolts.
  • Apply the specified torque using a digital torque wrench.
  • Verify the grounding connection is secure.
View full procedure
Technical Service Bulletins

Incorrect Torque on Battery Terminal Bolts

2020-05-15

Reports of battery terminal bolts being over-torqued, leading to terminal damage.

2018-2021 Dodge Sprinter

Resolution: Ensure the correct torque specification is applied using a calibrated torque wrench.

Alternator Mounting Bolt Loosening

2019-08-22

Reports of alternator mounting bolts loosening over time due to insufficient torque.

2018-2020 Dodge Sprinter

Resolution: Re-torque the alternator mounting bolts to the specified value and apply thread locker if necessary.

Grounding Bolt Corrosion

2021-03-10

Reports of grounding bolts corroding due to improper torque and lack of anti-corrosion treatment.

2018-2022 Dodge Sprinter

Resolution: Clean the grounding points, apply anti-corrosion paste, and re-torque the bolts to the specified value.

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
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