Firing Order For The 2015 Jeep Cherokee 3.2

Our editors pick the products & services we write about. When you buy through our links, we may get a commission. Learn more.

The 2015 Jeep Cherokee 3.2 is a remarkable vehicle known for its off-road capabilities, versatile features, and impressive performance. One of the critical aspects that make it a robust machine is its engine, which is powered by a V6 Pentastar engine with a displacement of 3.2 liters.

To ensure smooth and efficient operation, understanding the firing order of this engine is vital. In this article, we will have a better unerstanding of the 2015 Jeep Grand Cherokee 3.2 firing order, explaining its significance and how it contributes to the overall performance of the vehicle.


Firing Order: The Basics

Jeep Cherokee car on a road with snow

The firing order of an engine is the sequence in which the engine’s cylinders receive spark and combustion, ensuring that the engine operates smoothly and efficiently.

This sequence is critical as it directly affects the engine’s balance, performance, and overall functioning. In the case of Jeeps in general and the 2015 Jeep Cherokee 3.2 in specific, understanding its firing order is essential for detecting any issues and for routine inspection. 

The firing order is the sequence at which the cylinders are fired. In the 3.2-liter Pentastar V6 engine, the firing order is 1-2-3-4-5-6. In other words, the cylinders are fired in that particular order to ensure consistent engine performance. 

In addition to the information above, here are some extra things to keep in mind about the firing order of the 2015 Jeep Cherokee 3.2L V6 engine:

  • The firing order is the same for all 2015 Jeep Cherokee 3.2L V6 engines, regardless of transmission type or trim level.
  • The firing order is important for proper engine operation and should not be changed.
  • If you are troubleshooting firing order problems, be sure to check all of the components in the ignition system, including the spark plugs, spark plug wires and ignition coils.

Significance of the Firing Order

Maintaining the proper order for the 2015 Cherokee (and any other car really) is important for the following reasons:

  1. Engine Balance: The firing order ensures that each cylinder fires in a specific sequence, contributing to balanced engine performance. This balanced firing sequence reduces vibrations, improving the overall driving experience and comfort for both passengers and the driver.
  2. Fuel Efficiency: The firing order optimizes fuel combustion by coordinating the ignition process in a way that minimizes wasted fuel and maximizes power output. This is crucial for fuel efficiency and reducing emissions.
  3. Emission Control: By following a specific firing order, the engine can more effectively manage emissions, helping the vehicle meet environmental standards and regulations. A well-maintained firing order contributes to cleaner air and reduced pollution.
  4. Diagnosing Issues: When troubleshooting engine problems, knowing the firing order is invaluable. It assists in identifying issues related to misfires, which can be caused by problems with the ignition system, fuel delivery, or mechanical issues within the engine.
  5. Maintenance and Repairs: During maintenance or repairs, such as changing spark plugs, ignition coils, or performing a tune-up, understanding the firing order is essential. It ensures that these components are replaced or adjusted correctly, preventing misfires and maintaining engine efficiency.

The Pentastar Advantage

Motion pause of Jeep Cherokee car

The Pentastar V6 engine, including the 3.2-liter variant found in the 2015 Jeep Cherokee, is known for its smooth operation and power delivery. This is largely due to the well-engineered firing order, which optimizes performance and minimizes engine vibrations.


The Pentastar’s firing order of 1-2-3-4-5-6 is designed to provide a balance between performance and efficiency, making it an ideal choice for a versatile vehicle like the Jeep Cherokee.

Performance Enhancements

The 2015 Jeep Cherokee 3.2’s firing order contributes significantly to its performance. The well-balanced firing sequence, combined with the V6 engine’s ample power, results in a vehicle that offers impressive acceleration and torque.

Off-Road Prowess

Jeep vehicles, including the Cherokee, are renowned for their off-road capabilities. The 2015 Jeep Cherokee 3.2, with its balanced firing order, provides the necessary power and control needed to tackle various terrains.

The firing order ensures that the engine operates smoothly, even when you encounter challenging obstacles or uneven ground, allowing you to maintain control and traction.

Fuel Efficiency

Close up of a fuel gauge showing a full fuel tank in a car

In addition to its exceptional performance, the 2015 Jeep Cherokee 3.2 is relatively fuel-efficient for a vehicle in its class.

The firing order plays a significant role in optimizing fuel combustion, reducing waste, and improving efficiency. This translates to fewer stops at the gas pump and more time enjoying your adventures.


The 2015 Jeep Cherokee 3.2 is a remarkable vehicle with a powerful and efficient Pentastar V6 engine at its core. Understanding the firing order of this engine, which is 1-2-3-4-5-6, is essential for maintaining its performance, diagnosing issues, and ensuring a smooth and comfortable driving experience.

The firing order plays a crucial role in engine balance, fuel efficiency, emission control, and overall vehicle performance.

Additionally, it simplifies maintenance and repairs, helping you keep your Jeep Cherokee running smoothly for years to come.

Read moreFord 302 & 302 HO Engine Firing Order


Leave a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.