7.3 Powerstroke Bad Exhaust Back Pressure Sensor Symptoms (Explained)

7.3 Powerstroke bad exhaust back pressure sensor symptoms are pretty common among vehicles.

One of the first symptoms of a malfunctioning Powerstroke bad exhaust pressure sensor is the vehicle’s reduced performance. That’s not all; error codes, loud noises, and excessive smoke can all be the symptoms of 7.3 bad Powerstroke.

So, here in this blog, our automotive experts will let you know all the significant symptoms of bad exhaust Powerstroke and how you can easily identify them.

7.3 Powerstroke Bad Exhaust Back Pressure Sensor Symptoms: In-Detailed Explanations

Here in this section, you’ll know some of the significant symptoms of bad 7.3 Powerstroke exhaust issues

1. Error Codes

When operating a 7.3 Powerstroke exhaust back pressure sensor, you may take help from an AE. This helps you deliver codes that can indicate if the exhaust pressure sensor is fine or not. For instance, P0471 means that the hose is plugged, stuck, or leaking.

Moreover, some error codes even indicate issues with the circuit or may indicate a biased sensor. That’s not all; the error codes can even signify a 7.3 exhaust back pressure valve closed.

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2. Reduced Performance

The EBP sensor problems can lead to reduced engine performance. That is because the exhaust backpressure sensor controls the speed, but when it starts to face problems, you will see a reduction in mileage.

Moreover, your faulty EBP sensor can cause difficulties while you will try to start the engine. You will also notice that the problematic sensor may gradually reduce the acceleration as it generates less power.

3. Loud Noise

Usually, the exhaust pressure back pipe is not supposed to make noises during the car’s ignition. But an issue in sensors can cause loud, unusual noises. The loud sound is because the engine has to put extra pressure while starting and accelerating the vehicle. This excessive force exertion to start or accelerate the vehicle drastically cause the engine to deteriorate.

4. Excessive Smoke

You won’t need a 7.3 EBP sensor test if you notice that your car’s exhaust pipe releases extra smoke while running. This is a clear indication that the combustion of your exhaust pressure valve is not operating correctly, and thus the exhaust pipe releases too much smoke.

5. Difficulty in Starting

The sensor problem causes delay and difficulty in starting the engine, which can get intolerable, especially during winter.

Moreover, you may even have to wait up to an hour to start your car or truck during winter if you don’t get your faulty sensor repaired. So, to solve this issue, you have to unplug the sensor, also known as a 7.3 exhaust back pressure sensor delete.

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How to Replace a 7.3 EBP Sensor?

Experts suggest that the best and only effective solution to fix all these issues is to replace the problematic sensor as soon as you encounter any of these symptoms. Below is a step-by-step guide on replacing a 7.3 EBP sensor.

Step 1: Go Underneath and Detach the Pipes

First of all, you need to go underneath your vehicle (or open up the front if it’s a car) and slowly detach the exhaust pipes. Always remember to use wrenches or brackets while unwiring the wires.

Step 2: Get a Socket to Pull the Sensor

Once you’re done with unwiring, get a socket with an extension. Then, reach out to the sensor and pull it out slowly. But be careful not to damage anything delicate during your EBP removal process.

Step 3: Attach the New Sensor

Bring the brand new sensor that’ll cost you nearly 70 to 80 dollars. Moreover, you can use the same tools to attach the EBPS that you used to pull the older one out and ensure that the sensor is perfectly tightened.

Step 4: Set the Wires As Before

When you’re done placing the new sensor, you have to use the wrenches to set the wires and pipes in their respective places. You have to be careful in this step to avoid damage to the motor and oil pump.

How to Clean an Exhaust Back Pressure Sensor?

Sometimes proper cleaning can keep your 7.3 Powerstroke working as well as new. Below is a step-by-step process by which you can effectively clean your exhaust.

Step 1: Bring a Wire for Feeding

Feeding through the hole of a sensor is the best method of cleaning it inside. You should get a long metal wire for the entire feeding process.

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Step 2: Connect It with a Drill

Connect one side of the wire with a drill and insert the other side through the sensor’s hole. Move the wire back and forth to clean it inside, and if necessary, you can also apply some lubricant.

Step 3: Clean the Surrounding Area with a Lubricant

A lubricant can also help clean stiff or clogged specks of dirt, including a metal sensor. Applying lubricant and letting the clogs wet will quickly clear the surroundings and make the areas smooth again.

Step 4: Clean the Exhaust Pipe

This step is an optional one. You can clean the exhaust pipe and the sensor if necessary. While one socket is connected to the sensor area, go underneath the truck and detach the exhaust pipe.

After taking the pipe out, you can do the exact cleaning procedure as the sensor.

Step 5: Attach Everything Back to its Spots

Once you’re done with cleaning the stuff, you have to put them back in the vehicle and check if the truck is okay or not.

Bottom Line

Identifying 7.3 Powerstroke bad exhaust back pressure sensor symptoms is not difficult as long as you have a clear idea of the symptoms. Even solving the problems of the sensor is not challenging as well.

You can always take professional help if you’re not confident enough about cleaning or replacing the sensor for EBP.

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Brian Polk

Brian is an automotive expert who has 12 years of experience in the industry. He has worked on a variety of cars, from high-end luxury vehicles to budget-friendly options, and has a wealth of knowledge on the subject. He is passionate about automobile and enjoys sharing his knowledge with others, whether they are looking to purchase a new motorized vehicle or simply learn more about the inner workings of these machines. In his free time, Brian enjoys working in his automobile workshop and spending time at the track.

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