What is P0476 code on 7.3 Powerstroke? How To Fix

There are so many codes a 7.3 Powerstroke engine Powertrain Control Module (PCM) generates when there is any problem inside it. Among these codes, P0476 is one. 

This code means any issue with the Exhaust Back Pressure (EBP) valve. This problem has some specific reasons, symptoms, consequences, and ways of fixing it. 

In this article, we will be talking all about what is P0476 code on 7.3 Powerstroke, what are its symptoms, and how to fix it with household equipment.

What Does P0476 Code Means On 7.3 Powerstroke?

The P0476 code on 7.3 Powerstroke means there is a problem with your Exhaust Back Pressure valve. This code is assigned only to indicate EBP issues. But what may be the exact reason behind it is not specific

When the Powertrain Control Module (PCM) shows this code, it means there are some possible problems in the EBP valve. From previous experience with this code, we find three common issues.

It may be caused if the EBP valve does not fit well or there may be a poor electrical connection connecting the valve. There is another possible reason behind this code. There is a faulty valve in your EBP.

So, the  P0476 code on 7.3 Powerstroke means there is an issue on your Exhaust Back Pressure valve and you have to check it before you start driving.

Symptoms Of Getting The P0476 Code On A 7.3

As this is an issue with your engine, this should have some symptoms that a driver and a mechanic will easily understand. 

Though these symptoms are not something serious they will be easily detectable. Let’s look at some symptoms of the P0476 code on 7.3 Powerstroke.

  1. Check Engine Light will Glow
  2. Frequently Appear this Code on PCM
  3. Change of Vehicle Sound
  4. Rough Driving Experience

If you find these symptoms in your vehicle while testing performance or driving, you must inspect all the critical points of the engine. Especially the Exhaust Back Pressure valve section.

The Causing Factors Of The Error Code P0476

Everything in this world has at least one cause. In the same way, the P0476 code on 7.3 Powerstroke also has some causes. 

Knowing the causes behind this issue is very important because, without this, you will not be able to solve it. 

Here I find some causes that may be the culprit behind this code.

  • Poor Electrical Connection: This is one of the main problems for what this code appears on the PCM. If the connection is low, then it may happen.
  • Any Fault of Valve: Sometimes mechanics set one faulty Exhaust Back Pressure valve while servicing. This type of valve may cause this code error. Even if the valve is damaged, then also it may appear.
  • Unfit of Valve: If the Exhaust Back Pressure valve is not attested then this problem may occur. This is also a common reason behind this code.

How Serious Is Code P0476 On 7.3 Powerstroke?

If you want to measure the seriousness of this error that causes the P0476 code on 7.3 Powerstroke then you have to compare it with other vehicle problems. 

In that sense, the P0476 code is not a serious problem for your 7.3 Powerstroke engine. But if this problem continues for a long time, it may cause some other problems. 

Even your engine may not start for this. You have to take measures to diagnose this as soon as possible. Never underestimate any problem that occurs with automobile machines.

How To Solve P0476 Error Code On 7.3 Powerstroke?

As I said, the P0476 code has many reasons. To solve this code, you have to find the exact reason behind this problem. Let’s see all probable solutions to this:

If the Electric Connection has a Problem

If the electric connection is poor then you have to work on that. Check which wire gets the problem. 

Try to replug that by removing if there is any dust. But if that is already damaged then use a new wire.

If There is any Problem With Valve

We also know that the problem may be with the valve. It may be unfit or faulty. You may also work on this here. 

Remove the Exhaust Back Pressure valve, clean it, and fix it again. Hope the code is gone now.

But if there is still some problem, then you have to meet an expert technician and do an advance check. He will inspect every part and port of it. 

You may also change the cam sensor. Though it is a small change it may be very effective.

How Much Does It Cost To Solve The Error Code P0476

The cost also depends on what actually happens in your Exhaust Back Pressure valve. If the case is minor then you can fix it. 

But if the issue is something serious and needs the help of a technician then it may cost from $100 to $250. The cost totally depends on your location, problem, and also time. 

Common Mistakes While Solving The P0476 Code

While we face any problem with our vehicle, we become reckless and feel pressure. Some people take it seriously even if the problem is minor. 

In the meantime, we make some mistakes. That mistake is also related to the P0476 code problem on 7.3 Powerstroke. 

Though a small change can fix the code for being reckless, we fall into tension and call the mechanic. And lost a good amount of money. This is one of the most common mistakes we make while solving the P0476 code.

Not using the proper tools in this task is another mistake. Some people even don’t take this code seriously. He is also making some serious mistakes in the long run.

Additional Comments To Consider Regarding The P0476 Code

There is no real comment in this code and its solution. I would like to warn you about your safety while doing the fixing task. 

You must wear hand gloves for your hand safety. Also, ensure that the engine is off while opening the hood. 

Another thing you must follow in this code. That is, you should not make any delay if you find any unnatural behavior from the car. Never delay solving the Exhaust Back Pressure valve-related problem.


That was all about the P0476 code on the 7.3 Powerstroke problem, its symptoms, and ways of fixing it. 

I hope you enjoy reading from us and get the solution you expected. 

Take care of your vehicle if there is any problem with it and never make any mistakes to keep yourself safe from any unwanted situation.

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