2016 Ford Explorer Cylinder Numbers – The Essential Guide For DIY
Locating the correct cylinder on your 2016 Ford Explorer is the critical first step for diagnosing misfires and performing routine maintenance. This guide provides clear diagrams and explanations for both the 2.3L I4 and the 3.5L V6 engines to ensure your repairs are accurate and efficient.
Getting a P0302 or P0305 check engine light code can feel like a setback when you are ready to hit the road. You know there is a misfire, but without knowing the 2016 ford explorer cylinder numbers, you are just guessing which part to replace.
I understand the frustration of staring at a complex engine bay trying to figure out where to start. This guide promises to clear up the confusion by providing the exact locations for every cylinder in the 2016 Explorer lineup.
We will walk through the transverse layout of these engines, identify the specific banks for the V6 models, and provide a step-by-step approach to troubleshooting ignition issues safely.
Understanding the Transverse Engine Layout
Before diving into the specifics, it is important to understand how the engines are positioned. The 2016 Ford Explorer uses a transverse layout, meaning the engine is mounted sideways between the wheel wells.
In this orientation, the “front” of the engine—where the accessory belts and pulleys are located—faces the passenger side of the vehicle. The “rear” of the engine connects to the transmission on the driver side.
This layout is common in front-wheel-drive and intelligent 4WD vehicles. It saves space but can make reaching the rear cylinders on a V6 engine a bit of a mechanical challenge for DIYers.
2016 ford explorer cylinder numbers for the 2.3L EcoBoost Engine
The 2.3L EcoBoost is an inline four-cylinder engine. Because all the cylinders are in a single row, identifying them is straightforward compared to the V6 counterparts.
The 2016 ford explorer cylinder numbers for this engine start at the passenger side and move toward the driver side. Cylinder 1 is closest to the drive belts, while Cylinder 4 is closest to the battery.
- Cylinder 1: Far right (Passenger side, near the belts).
- Cylinder 2: Center-right.
- Cylinder 3: Center-left.
- Cylinder 4: Far left (Driver side, near the transmission).
This linear arrangement makes it very easy to diagnose a faulty ignition coil. If your scanner says Cylinder 3 is misfiring, you simply count three over from the passenger side.
The Firing Order for the 2.3L EcoBoost
While the cylinders are numbered 1-2-3-4, they do not fire in that order. The firing order for this engine is 1-3-4-2.
Knowing this is helpful if you are checking for harmonic vibrations or timing issues. However, for basic spark plug swaps, focus primarily on the physical location of the cylinders.
Identifying Cylinders on the 3.5L V6 and 3.5L EcoBoost
The 3.5L V6 engines—both the naturally aspirated Ti-VCT and the twin-turbo EcoBoost—are the most common powerplants in the 2016 Explorer. These engines are divided into two “banks.”
Bank 1 is the row of cylinders closest to the firewall (the back of the engine bay). Bank 2 is the row closest to the radiator (the front of the engine bay).
Ford numbers these cylinders in a specific sequence that differs from other manufacturers. Understanding the 2016 ford explorer cylinder numbers on a V6 requires looking at both banks individually.
Bank 1 (Firewall Side) Locations
Bank 1 contains cylinders 1, 2, and 3. Cylinder 1 is on the passenger side, followed by 2 in the middle, and 3 on the driver side.
Accessing these cylinders usually requires removing the upper intake manifold. This is a common hurdle for DIY mechanics, but it is manageable with the right tools and patience.
Bank 2 (Radiator Side) Locations
Bank 2 contains cylinders 4, 5, and 6. Cylinder 4 is on the passenger side, 5 is in the middle, and 6 is on the driver side.
These are the “easy” cylinders to reach. If your misfire code points to any of these, you can usually replace the spark plugs or coils without removing major engine components.
Using Cylinder Numbers to Troubleshoot Misfires
When your Check Engine light flashes, it is often due to a misfire. An OBD-II scanner will give you a code like P030X, where “X” represents the cylinder number.
Memorizing the 2016 ford explorer cylinder numbers can save you significant time when swapping out a faulty coil pack. If you see P0305, you know immediately to look at the middle cylinder on the radiator side.
A pro tip for DIYers is the “swap test.” If you suspect a bad coil on Cylinder 5, swap it with the coil on Cylinder 4 and clear the codes.
If the code changes to P0304, you have confirmed the coil is bad. If the code stays at P0305, the issue might be the spark plug, fuel injector, or a mechanical compression problem.
Essential Tools for Spark Plug and Coil Maintenance
Working on your Explorer requires a few specific tools to ensure you don’t damage sensitive components. Always use a torque wrench when installing spark plugs to avoid stripping the threads in the aluminum head.
You will also need a 5/8-inch spark plug socket with a rubber insert. This insert holds the plug securely so it doesn’t fall and close the electrode gap during installation.
- OBD-II Scanner: To read the specific misfire codes.
- Socket Extensions: Various lengths to reach Bank 1 on V6 engines.
- Dielectric Grease: To apply to the inside of the coil boots for a better seal.
- Gap Gauge: To verify your new plugs are set to the factory spec (usually 0.050 to 0.054 inches).
Taking the time to gather these tools beforehand makes the job smoother. It also ensures you are following best practices for modern automotive repair.
Safety Protocols for Under-Hood Repairs
Safety should always be your top priority when working on any vehicle. Ensure the engine is completely cool before you begin, especially if you are working on the 3.5L EcoBoost.
The turbochargers and exhaust manifolds stay hot for a long time. You don’t want to risk burns while reaching for the rear cylinder bank.
Always disconnect the negative battery terminal before working on the ignition system. This prevents accidental electrical shorts or the fuel pump from priming while you have components disassembled.
If you are removing the intake manifold on a V6, use clean shop towels to plug the intake ports. This prevents nuts, bolts, or debris from falling into the engine, which could cause catastrophic damage.
Common Issues Related to Specific Cylinders
On the 2016 Ford Explorer, certain cylinders are more prone to issues than others. For example, the rear bank (Bank 1) often runs slightly hotter due to restricted airflow near the firewall.
This heat can cause the ignition coil boots to become brittle over time. If you are replacing one coil on the rear bank, it is often wise to replace all three since the manifold is already removed.
On the 2.3L EcoBoost, keep an eye on Cylinder 4. Being closest to the transmission, it can sometimes experience different vibration patterns that affect the wiring harness connectors.
Always inspect the electrical connectors for “green crusties” or corrosion. A clean connection is just as important as a fresh spark plug for maintaining engine performance.
Frequently Asked Questions About 2016 Ford Explorer Cylinder Numbers
Where can I find a diagram for 2016 ford explorer cylinder numbers?
You can find diagrams in your owner’s manual or on the underside of the hood on the Vehicle Emission Control Information label. Most repair manuals like Haynes or Chilton also provide detailed illustrations for both the I4 and V6 layouts.
Which cylinder is Cylinder 1 on the 3.5L V6?
Cylinder 1 is located on the passenger side of the engine, in the bank closest to the firewall. If you are standing at the passenger side fender looking at the engine, it is the cylinder furthest to your left in the rear row.
Do I need to remove the intake to change all the spark plugs?
On the 2.3L I4, no. On the 3.5L V6 (both EcoBoost and Ti-VCT), you must remove the upper intake plenum to reach cylinders 1, 2, and 3. This is a standard procedure and usually takes an extra 30 to 45 minutes.
What is the firing order for the 3.5L V6 engine?
The firing order for the 3.5L V6 is 1-4-2-5-3-6. This sequence is designed to balance the engine’s internal forces and provide smooth power delivery during acceleration.
Summary of Key Takeaways
Understanding your 2016 Ford Explorer’s cylinder layout is the key to mastering your own maintenance. Whether you have the efficient 2.3L or the powerful 3.5L, knowing where to look saves you time and money.
Remember that Bank 1 is always the firewall side and Bank 2 is the radiator side for V6 models. For the inline-four, just count from the passenger side to the driver side.
Always use the correct tools, prioritize safety, and don’t be afraid to take photos of your wiring connections before you take things apart. This ensures everything goes back exactly where it belongs.
By following these steps, you can tackle misfires and maintenance with the confidence of a seasoned pro. Keep your Explorer running strong, and enjoy the peace of mind that comes with a job well done. Stay safe and keep wrenching!
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