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p0354 Ford F150 | Meaning, Causes And Solution

Ford F150 has been the best selling truck in the US for multiple years. Well known for its heavy build and towing capacity, F150 is surely a vehicle to watch out for. However, it can still be hit by DTC codes.

The code p0354 Ford F150 means that there must be a problem with the “D” circuit of the ignition coil. When the PCM or the ECM detects that there is an issue with the primary or secondary circuit in the ignition coil “D”, P0354 is triggered on your Ford F150.

You must be asking yourself how I can fix this code. Do not worry at all, as well will guide you through this article.

What Does Code P0354 Mean on Ford F150?

The Engine Control Module (ECM) and the Powertrain Control Module (PCM) monitors and controls all the activities of the Ford F150 through the help of sensors implanted.

The Ford’s engine runs on a coil on plug ignition system. This means that each cylinder has a separate ignition coil above its spark plug. When the PCM or ECM detects that there is an issue with the ignition coil placed on cylinder 4, the code P0354 is triggered.

Here is a quick breakdown of the code P0354.

  • P=Power train
  • 0=Generic OBD code
  • 3= Issue with the ignition system or misfiring issue
  • 54= Indicates the exact fault. In this case, the fault with the ignition coil “D” circuit

Common Symptoms of A P0354 Ford F150 Issue

Whenever there is a problem, the PCM is built in a way that it sends a signal to the driver that there is a fault. Such is also the case for P0354. Here is a list of common symptoms that you will be facing when your F150 is hit by a P0354 code.

Illuminating Check Engine Light

One of the most common symptoms for any DTC code is this one. This “Check Engine Light” acts as a primary notifier. Even though it is a very ambiguous signal, you should not ignore it and get your Ford checked as soon as possible.

Issues with starting the Ford

This is a rare symptom which is also seen in the Ford users who have been hit by P0354. Due to the ignition coil not being able to function properly and not giving enough power to the spark plug.

Therefore, the spark plug cannot initiate the combustion reactions and provide energy for the engine to rev up. If you have been facing this issue lately, this could be one of the reasons.

Disturbation during driving

Something that is faced by many Ford users is an uncomfortable experience during driving. They could feel unnecessary jerking of the car, disturbing noises coming out of the F150.

This can be due to the low power supply to the spark plug by the “D” circuit ignition coil. Therefore, a lack of power remains and the car cannot function normally.

Bad Idling of the F150 

Imagine being stuck in a traffic jam and you are already frustrated from it. At that time, your Ford decides to give you an extra tough time. It starts to idle badly, shake unnecessarily and bombard you with absurd noises.

This is also a major symptom of this code P0354. If you come across this issue, it is high time that you start looking into the fault.

What are some potential causes of A P0354 Ford F150 Code

Every problem/fault has an origin point. The case for P0354 is no different. It does not appear in your Ford F150 out of nowhere. We will be discussing the causes behind this P0354 code.

  • A faulty ignition coil/ faulty ignition coil circuit
  • Fault spark plugs
  • Defective Power Control Module (PCM)
  • Defective Engine Control Module (ECM)
  • Loose connection towards the ignition coil end/ towards the PCM or ECM end

How to diagnose and fix P0354 Ford F150 Code

After reading all of the above paragraphs, we believe that you now have a firm knowledge about the code P0354. The ins and outs of this code is quite necessary for the diagnosis and solution part.

Right now, we will be jumping into the section of fixing this code. We will access the fix the way a professional mechanic would have done so. The first thing we would do is diagnose the code. Once we have isolated the code, we will move on to the fixes.

Step 1: Diagnosing the fault code P0354

Before you even start the diagnosis process, you would need a DTC scanner. What is a DTC scanner? It is a device that is used to access the memory of your car system and show the fault through the medium of codes such as P0354.

They do not cost much as you can get a good scanner for 50 dollars. Once you have obtained the scanner from an automotive store, you can move on to the diagnosis part.

  1. Boot up the DTC scanner with your Ford’s port.
  2. Scan the system and allow the scanner to obtain freeze frame information. It should have some codes. Write it down on a piece of paper or take a snapshot.
  3. After that, reset the system and take the car out for a test drive. 
  4. Then, continue to boot up the scanner again and check whether any of the code prevails or comes back. In this case, it is the P0354 code. If it does, proceed to the next step.

Step 2: Fixing the code P0354

You should pay some extra attention from now onwards. There are multiple methods you can fix this code. Therefore, we will be showing you every method so that you can fix your F150 easily.

1.  Replacing the faulty ignition coil

Ignition coil is an important tool for the initiation and running time of the engine. It takes the low voltage in the primary coil and increases it to high voltage in the secondary coil through magnetic induction. This high voltage is then used to run the spark plug.

Without the spark plug, the F150 will not start at all. You should require $150 to replace the spark plug by yourself. Here is a step-by-step guide on how to replace the coil.

  1. Disconnect the negative terminal of the battery.
  2. Unscrew the oil cap and remove the cover and the insulation.
  3. Disconnect the high pressure fuel pump and wiggle out the bottom hose.
  4. Push out the lock of the connectors and remove the bolts to access the ignition coil.
  5. Install the new ignition coil into the place and reinstall everything,

2. Replacing the PCM/ ECM

The Power control module, also known as the Engine control module, is the brain of your Ford F150. It instructs the different parts of the car and enables everything to work in sync.

Without them, the vehicle would not even function. A faulty one can be pretty dangerous as it might send wrong instructions and damage the parts beyond repair. Here is a step-by-step on how to replace the PCM or the ECM.

  1. Disconnect the negative terminal of the battery.
  2. Locate the PCM which is usually behind the passenger side. 
  3. Once you have successfully located the PCM, unlock the three connector lines/ harness lines, You need to flip the lever first before pulling out the lines.
  4. After you have removed the harnesses, unscrew the four bolts holding the PCM.
  5. Remove the PCM and install the new one. 

An ECM/ PCM is quite costly as they cost around $1000. Therefore, prepare to spend some money if you have a faulty one.

3. Replacing the defective spark plugs

Spark plugs initiate the combustion reaction which powers up the engine. A faulty spark plug can stop the initiation and can stop the car from running.

Spark plugs are cheap as they cost around a hundred dollars. Here is a step-by-step guide on how to replace them.

  1. Disconnect the negative terminal of the battery.
  2. Remove the cover and the insulation cover to access the parts.
  3. Blow dry the parts before you start unscrewing anything. 
  4. Remove the ignition coils by removing the locks. 
  5. Once done, take a spark plug hatchet and pull out the spark plugs.

4. Contact a professional

It is okay to feel overwhelmed and uncomfortable while doing the fixes. If you feel too uneasy to do everything by yourself, you can rely on a professional.

Go to your nearest local garage and get a consultation timing. He/ she will be able to do the fixes for you easily. Although the mechanic may charge a couple hundred dollars extra as labor costs.

How To Prevent A P0354 Ford F150 Issue From Happening In The Future

As we are done with the diagnosis and fix sections, we will quickly tell you how you can prevent a P0354 from appearing/ reappearing in your Ford F150.

  • Always take your Ford F150 for monthly maintenance checks
  • Do not leave your truck out for too long. Take it for test drives.
  • Remember to start the fixes with a cold car.
  • Avoid driving on off-road tracks

Conclusion

We hope that this article has given you the knowledge that you needed to acquire. After reading this article, you should be able to single-handedly manage everything.

An advice that we would like to give is that you should learn some fixes. It can be quite costly for your wallet if you have to visit the local garage every time you have a problem with your Ford F150. 

Learning some fixes can help you, not only save money, but also, get to know about your vehicle more. We sincerely hope that you will be able to solve the DTC code P0354. We wish you a good day!

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