Ford 3.5 Ecoboost firing order [Explained]

The firing order of an engine is a sequence in which the cylinders fire. The purpose of the firing order is to confirm that the spark plugs fire in the accurate order so that the engine runs smoothly. 

Ford 3.5 Ecoboost firing order is 1-4-2-5-3-6. This firing order is different from other engines, so it is important to make sure that you know the order before you begin work on your vehicle. 

This blog post will thoroughly discuss the firing order of the Ford 3.5 EcoBoost engine. We’ll go over what it is, how it works, and why it’s important to know. So without further ado, let’s get started!

What Is The Ford 3.5 Ecoboost Firing Order?

1-4-2-5-3-6 is the firing order for the Ford 3.5 EcoBoost engine. It may seem counterintuitive initially, but makes sense when you think about it.

The firing order is 1,2,3 on the front right side of the car and 4,5,6 on the front left side of the car. This firing order allows for a more balanced engine, which results in better fuel economy and performance.

In addition, it helps to reduce emissions and improve reliability. So if you’re looking for a powerful and efficient engine, the Ford 3.5 EcoBoost is worth considering.

How Do You Check Ford 3.5 Ecoboost Firing Order?

Checking the firing order of an engine is a relatively simple task that can be accomplished in just a few minutes. For a Ford 3.5 EcoBoost engine, the firing order is 1-4-2-5-3-6.

The spark plugs will fire in that order, starting with the #1 cylinder and ending with the #6 cylinder. To check the firing order, remove all of the spark plugs and look into each cylinder with a flashlight.

The piston at Top Dead Center (TDC) will be visible in each cylinder. Once you have located the #1 cylinder, follow the firing order to ensure that each spark plug is firing.


How Are The Cylinders Numbered On A 3.5 Ecoboost?

When it comes to car engines, many numbers and terms can be confusing for those who aren’t mechanically inclined.

One such term is “cylinders.” But what are cylinders, and how are they numbered on a 3.5 EcoBoost engine?

Essentially, cylinders are the cylindrical chambers in an engine where combustion occurs. The number of cylinders in an engine can vary, but they often come in either 4, 6, or 8-cylinder configurations.

The cylinder numbering on a 3.5 EcoBoost engine is slightly different from other engines, but it’s still fairly straightforward.

The 3.5L EcoBoost engine fires in a 1-2-3 sequence on both sides of the engine! So it sounds more like two straight 3-cylinder engines put together, which gives it a pretty unique sound compared to other V6s.

How Do You Change The Plugs On A 3.5 Ecoboost?

Changing the spark plugs on your 3.5 Eco boost is a simple task that can be done at home with just a few tools.

Tools You Need To Change The Plugs On A 3.5 Ecoboost

  • A 3/8″ drive ratchet
  • A 3/8″ drive 6″ or 8″ extension
  • A 5/8″ spark plug socket
  • A handful of anti-seize compound

Step 1: Extract the negative battery cable

Remove the negative battery cable from the battery terminal to prevent accidental shock while working on the vehicle.

Step 2: Find the spark plugs

Locate the spark plugs on the engine. They will most likely be located under a coil pack or ignition wire. Follow the wires or coil pack bolts back to the spark plug.

Step 3: Loosen the spark plugs

Use the ratchet and extension to loosen each spark plug in one turn. Be sure not to remove them all of the ways at this point, as you may drop them into the cylinder and cause engine damage. 

Step 4: Release each spark plug

Connect the spark plug socket to the ratchet and remove each spark plug from its cylinder. If they are difficult to remove, you can try spraying some WD-40 or penetrating oil onto the threads to help loosen them up.

Step 5: Inspect and replace

Inspect each spark plug for fouling or damage. If they look damaged, replace them with new ones.

Step 6: Gap the new spark plugs

Next, you’ll need to gap the new spark plugs. It simply means setting the distance between the electrode and the plug’s tip. The recommended gap for your 3.5 Eco boost is .06 inches. 

Once the plugs are gapped, screw them back into place and reattach the coil packs. That’s it! You’ve now successfully changed the spark plugs on your 3.5 Ecoboost.

Some other Firing orders of ford 3.5 engine

In this section, we are going to discuss the firing orders of the most popular model of Ford vehicles with the release year. Let’s have a look to learn more:

2011 Ford F150 3.5 Ecoboost Firing Order

The firing order of the 2011 Ford F150 3.5 Ecoboost is 1-4-2-5-3-6. This firing order is different from other EcoBoost engine models because it has banks one and two.

The coils for each bank fire in order so that there is an equal amount of time between firings. It helps the engine run more smoothly and efficiently. 

2015 Ford 3.5 Firing Order

The 2015 Ford 3.5 firing order is 1-4-2-5-3-6. The engine must be at the top dead center before determining the firing order.

The cylinders are numbered from front to back, with cylinder #1 being the front-most cylinder on the driver’s side of the engine. 

2017 Ford F150 3.5 Firing Order

The 2017 Ford F150 3.5 liter engine firing order is 1-4-2-5-3-6. That may seem like a random order, but it’s been carefully designed to minimize vibration. So if you’re ever having trouble with your Ford F150 3.5 liter engine, check the firing order first.

Conclusion

Ford 3.5 EcoBoost engine firing order is 1-4-2-5-3-6. This firing order is important because it ensures the correct sequence of events in the engine.

It also determines the amount of time each spark plug spends firing, affecting engine performance.  The firing order for the 3.5 EcoBoost engine is different from other engines because it has three valves per cylinder instead of two.

It means that there are more possible combinations for the firing order. It ensures that the engine runs smoothly and efficiently. 

Thanks for reading! We hope this article helped you understand the firing order for the Ford 3.5 EcoBoost engine.

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