How To Change Spark Plugs Ford F150 4.6l Engine? (5 Steps)

Changing spark plugs can be a difficult task for someone who has no prior experience. We promise you it’s a piece of cake to change spark plugs on your Ford F150 4.6L engine.

Sometimes, spark plugs can be broken or blown out of the cylinder. The Ford F150 4.6L engine won’t start with faulty spark plugs.

So, here we are with a step by step guide made easy for you. Make sure to read this article in full and find out how to change spark plugs Ford F150 4.6L Engine.

Supplies to Change Spark Plugs Ford F150 4.6L Engine

As we promised, you can change spark plugs quite easily at your garage. All you need are some essential supplies. Let’s make a list of supplies right away.

  • To begin, you need good-quality spark plugs. If your spark plugs are broken, you may want to change them, and this is exactly why you are here.
  • It is a good idea to keep things clean while you work. Yes, you need a compressed air cleaner to drive the dust away around the coils. It is important to clean the specks of dirt because they can go into the plug well and damage the spark plugs to misfire.
  • Screw-Driver should be required to remove screws.
  • Spark Plug Socket is the most important supply you will need. The spark plug lays deep into the well where human hands cannot reach. You need to hold and remove it with the socket.
  • You need Silicon Dielectric Grease to put on the tip of the coil’s leg. It will work as an insulator.
  • You should use Torque Wrench to measure and apply the torque on the new spark plug.

It may seem that some of the supplies are hard to manage. You may not have them in your possession. Well, in that case, you can avoid the compressed air cleaner and the torque wrench. Instead of a torque wrench, you can apply torque on the spark plugs by feeling with your hand.

How to Change Spark Plugs Ford F150 4.6L Engine – Step by Step Guide

Enough with the talking. Now, wear hand gloves and get to work. There are several spark plugs plugged in your Ford F150 4.6L Engine. They are located in different places. If you learn to change one spark plug, you can change them all by following the same process.

Step 1 – Locate a Spark Plug

To begin, locate the spark plug you want to change. Open the engine compartment. Every spark plug is plugged into a cylinder deep into a spark plug well.

Then, the spark plug is connected and covered entirely on the other end with a coil. So, if you remove the coil, you can see a spark plug well, and you can see a spark plug inside the well.

Step 2 – Remove the Covering Coil

Inside the engine compartment, you can locate a coil. Before disconnecting it from the electrical connector, clean the whole area with a compressed air cleaner. Then, disconnect the coil by removing the electrical connector.

Now, the coil is free from the electric connection. But it is placed firmly with a screw. So, remove the screw with a screwdriver. Once you have removed the screw, the coil is free to remove from the top of the spark plug. Remove it gently. Here you go; now the spark plug well is exposed. Now, clean the coil by removing all the oily specks of dirt.

Step 3 – Remove the Spark Plug

In this step, you need to remove the spark plug from inside the spark plug well. But your hands cannot reach inside the hole. Here the spark plug socket comes into play. You can put the spark plug socket inside the hole and hold it with it.

Now, hold the spark plug with a spark plug socket, spin it reverse gently. Spin it until the spark plug becomes disconnected from the cylinder. Well, now remove it. And here you are, now the spark plug is in your hands.

Step 4 – Plug a New Spark Plug

Now you can plug a new spark plug. The gap at the tip of a new spark plug should be around 0.052-0.056. But before you put the spark plug inside the hole, you should clean it one last time. Clean the hole with the compressed air cleaner.

Now, you can plug in the new spark plug. Hold the spark plug with the socket and put it inside the hole. Spin the socket gently so that the spark plug becomes connected with the cylinder.

For connecting the spark plug, you need to apply 13 ft/pound torque on it. It can be easily done with your hand. Nonetheless, you can use a torque wrench to apply sufficient torque.

Step 5 – Put Back the Coil

You are almost done. The new spark plug is now connected with the cylinder. Now you have to put back the coil the way it was. Before putting the coil’s leg into the spark plug well, apply some silicone dielectric grease on the leg’s tip. It will work as an insulator.

Put the coil’s leg inside the hole. It will be connected firmly with the spark plug’s other end. Now, screw the coil firmly the way it was before. Finally, connect the electrical connector with the coil. Job’s well done. You have successfully changed a spark plug Ford F150 4.6L engine.

Final Words

There are several spark plugs on the Ford F150 4.6L engine. They are located in different places. Some are easily accessible and some are not. But you can change all the spark plugs by following the same steps.

As we promised, changing a spark plug Ford F150 4.6L engine is not a difficult task. You can do this job easily at your garage. But always maintain safety measures before you work with anything. It is always a good idea to get a helping hand while you repair your vehicle.

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