2013 Ram 1500 3.6L Firing Order: A Complete Guide

The firing order for the 3.6L engine is 1 – 2 – 3 – 4 – 5 – 6. The cylinder firing order for a 6-cylinder engine is typically 1, 5, 3, 6, 2, 4 with cylinder 1 nearest you at the front. 

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Why is the 2013 Ram 1500 3.6L firing order different from other engines?

The 2013 Ram 1500 3.6L engine uses a unique firing order that is different from most other V6 engines. This firing order is designed to improve performance and fuel efficiency.

One of the key design features of the Pentastar V6 engine is its offset crankshaft. This means that the pistons in each cylinder bank are not aligned with each other. This offset design helps to reduce vibration and improve smoothness.

The firing order for the 2013 Ram 1500 3.6L engine is also designed to take advantage of the offset crankshaft. The firing order helps to balance the forces within the engine, which further reduces vibration and improves smoothness.

In addition to improving smoothness, the firing order for the 2013 Ram 1500 3.6L engine also helps to improve fuel efficiency. The firing order helps to reduce the amount of wasted energy during the combustion process. This results in better fuel economy and lower emissions.

Overall, the firing order for the 2013 Ram 1500 3.6L engine is a unique design feature that helps to improve performance, fuel efficiency, and smoothness.

How the firing order helps to improve performance and fuel efficiency

The firing order for the 2013 Ram 1500 3.6L engine helps to improve performance and fuel efficiency in a number of ways.

First, the firing order helps to balance the forces within the engine. This is because the cylinders are fired in a sequence that helps to cancel out opposing forces. This results in a smoother-running engine with less vibration.

Second, the firing order helps to improve the efficiency of the combustion process. The firing order helps to ensure that each cylinder is fired at the optimal time, which results in more complete combustion. This means that more of the fuel’s energy is converted into power, which leads to improved fuel economy and lower emissions.

Third, the firing order helps to reduce heat. The firing order helps to ensure that the heat generated by the combustion process is evenly distributed throughout the engine. This helps to prevent hot spots, which can lead to engine damage and reduced performance.

How to Find the 2013 Ram 1500 3.6L Firing Order

Under the hood:

  1. Locate the cylinder head cover. It is usually located at the top of the engine.
  2. Identify the cylinder number markings. They are usually stamped or cast into the cylinder head cover.
  3. Follow the spark plug wires from each cylinder to the distributor cap. The order of the spark plug wires in the distributor cap is the firing order.

In your owner’s manual:

  1. Consult the index to find the page on firing order.
  2. The firing order will be listed somewhere in this section.

Here is a diagram of the 2013 Ram 1500 3.6L engine firing order:

Firing Order

How to Fix a Misfiring Engine: A Comprehensive Guide

Experiencing a misfiring engine can be both frustrating and concerning. This guide aims to help you identify and fix the root causes of engine misfires, ensuring your vehicle runs smoothly and efficiently.

Replace Faulty Spark Plugs or Ignition Coils

Spark plugs and ignition coils play a crucial role in your engine’s performance. A faulty spark plug or ignition coil can lead to misfires. Here’s how to replace them.

Replacing Spark Plugs

Identify Damaged Spark Plugs

First, remove the spark plug wire and use a spark plug wrench to take out the spark plug. Look for signs of damage like cracks or wear.


If the spark plug is damaged, replace it with a new one. Use a spark plug wrench to secure it in the cylinder head.

Replacing Ignition Coils

Disconnect Electrical Connector

Start by removing the electrical connector attached to the ignition coil.


Use a wrench to loosen the mounting bolts and remove the old ignition coil. Replace it with a new one and tighten the bolts.

Repair Vacuum Leaks

Vacuum leaks can lead to engine misfires by letting in unmetered air. Here’s how to identify and fix them.

Common Sources of Vacuum Leaks

  • Cracked or Broken Vacuum Hoses
  • Damaged Intake Manifold Gaskets
  • Failed PCV Valves
  • Faulty Vacuum Check Valves

Repair Steps

Locate the source of the leak and repair or replace the damaged component.

Clean Fuel Injectors

Dirty or clogged fuel injectors can also cause your engine to misfire. Here’s how to clean them.

Cleaning Methods

  • Fuel Injector Cleaner Additive: Add this to your fuel tank.
  • Professional Cleaning: Take your vehicle to a mechanic for a thorough cleaning.

Update Engine Control Unit (ECU) Software

Outdated or corrupted ECU software can lead to engine misfires. Here’s how to update it.

Here are the steps on how to update the engine control unit (ECU) software:

  1. Connect your vehicle to a diagnostic scanner.
  2. Open the diagnostic scanner software and select the ECU programming option.
  3. Follow the on-screen instructions to download and install the latest ECU software.
  4. Disconnect your vehicle from the diagnostic scanner.
  5. Start your vehicle and allow the engine to idle for a few minutes.

The ECU software update process may take a few minutes to complete. Do not interrupt the update process, as this could damage the ECU.

After the ECU software update is complete, your vehicle may need to be reprogrammed. This process can be performed by a dealership or a qualified mechanic.

Important safety notes:

  • Always wear safety glasses when working on your vehicle.
  • Do not disconnect the battery while the ECU software update is in progress.
  • Do not allow the vehicle to run out of fuel during the ECU software update.
  • Do not start the vehicle if the ECU software update is interrupted.

4 Benefits of updating the ECU software:

  1. Improved performance and fuel efficiency
  2. Reduced emissions
  3. Fixes known software bugs
  4. Adds new features

Additional Troubleshooting Tips

  • Diagnostic Trouble Code (DTC) Scanner: Use a DTC scanner to identify which part of the engine is causing the misfire.
  • Engine Compression Test: If the misfire persists after replacing parts, consider an engine compression test.
  • Check Engine Timing: Incorrect engine timing can also cause misfires. Have it checked if compression is within specifications.

A misfiring engine can lead to various problems, including reduced fuel efficiency and potential engine damage. By following this guide, you can diagnose and fix the issues causing your engine to misfire.


  • Zayn

    Zohn Zayn Smith is a seasoned automotive enthusiast with over 15 years of experience in the industry. As the Founder and Chief Editor of Truckguider, he specializes in Dodge Ram models, including the Ram 1500 and Ram 2500. His deep understanding of these trucks makes him a trusted authority on everything from performance and maintenance to towing capabilities.

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