6.7 powerstroke high pressure fuel pump failure symptoms

The 6.7 Powerstroke high pressure fuel pump failure symptoms are the easiest ones to spot. Where there’s this issue, enough fuel will not go through and reach the engine for it to run properly. You will face major issues, such as the engine stopping out of nowhere, and the power output will feel under the weather.

They are not the only symptoms. Other considerable ones are:

  • Lower mileage
  • Unbearable noises from the engine
  • Having the need to change filters every two days
  • Pressing the accelerator doesn’t provide the same results as before
  • Keeping the accelerator at the same level, but the acceleration doesn’t feel constant
  • A higher temperature in the vehicle
  • The fuel pump’s valve stops opening

It’s mostly due to using poor quality oil. You have to maintain the manufacturer’s recommended oil. Apart from taking it to a technician like me, you can try some homemade fixes. Using external pressure and the other one is by regulating the temperature.

Let’s have a deeper look and see the cost of changing.

6.7 Powerstroke High-Pressure Fuel Pump Failure (9 Symptoms)

As a technician, I have encountered this problem so much that I figured out every ins and outs of this problem. Thus, now I am able to tell you how to know if 6.7 Powerstroke high pressure fuel pump is bad. Here’s what you need to know;

#1. Engine Ignition And Choking Problem

A clear indication that your engine has high-pressure failure is the engine ignition and choking problem. You will face problems turning on the engine as it has insufficient or no oil supplied to it.

Additionally, there is the choking problem where the engine starts to spit out while trying to turn it on or off.

#2. Power Output

The power output is one of the observable symptoms of high pressure fuel pump. It is something that you will feel. You certainly remember the power that your engine was capable of. The power will keep decreasing and you will just know when it happens.

#3. Lower Mileage

Diesel engines are not the best when it comes to mileage. You already get a comparatively low mileage from it, but a pump failure will drag it lower. The mileage just drops down due to the extra fuel that is being spent due to lower pressure.

#4. Unbearable Noises

There’s nothing to talk about here. You will hear noises from the engine that will simply stop you from sitting in the driver’s seat.

#5. Changing Filters Every Two Days

Changing the filter regularly is not a bad thing but certainly a good one. However, it doesn’t mean that you will change it every two days or so. It can only be caused by the faulty high pressure injection pump.

#6. Acceleration

By now, you should already have an idea of how much your vehicle accelerates on a certain level of the accelerator. When you notice that there’s a lower acceleration for that certain level, then it could be one of the symptoms.

#7. Inconsistency

You will see an inconsistent acceleration while keeping the accelerator on lock. Whereas the acceleration should have been constant. Additionally, you will feel small wriggles inside your vehicle.

#8. Higher Temperature

It shouldn’t be that hot in the vehicle, but it still feels really hot. Well, it’s another way for your vehicle to tell you to go for a check.

#9. Fuel Pump’s Valve

The valve on them, which is called the relief valve, will not open as smoothly or not even open. It is one of the symptoms of common fuel injector issues.

Additionally, we have also covered 6.7 Powerstroke dpf delete problems if these symptoms don’t match yours.

What Causes 6.7 Powerstroke High-Pressure Fuel Pump Failure Symptoms?

If you are facing any of the above mentioned symptoms, then it might be due to the fuel pump’s failure.

Yes, it is caused for using cheap or poor-quality oil in your branded 6.7 engine. The engine is like the brain of your vehicle, and it’s definitely your responsibility to feed the brain healthily.

We have seen same kind of issues in 7.3 Powerstroke low fuel pressure symptoms. Check it out if you own one and suffer from various problems that low fuel pressure can cause.

6.7 power stroke fuel system failure >> Check out the video below:

How To Solve 7.3 powerstroke High-Pressure Fuel Pump Failure Issues?

The only permanent solution to such fuel pump failure is by taking it to a professional and changing it. It will cost you less than a thousand dollars to change it, including the service charges as well.

However, you just can’t sit down and feel about not being able to take your Ford for a run. So here are the tricks you can apply for a temporary fix.

1. Regulating the temperature

There are plenty of manual ways you can regulate the temperature of your engine if you aren’t interested in using other equipment for it. A few of them would be;

  • Place your car in a shaded area
  • Activate the floor vents
  • Leave the automobile windows slightly ajar

Similarly, you can also install a compressor under the bonnet to regulate the temperature well.

2. External Pressure

There’s a chance that the pumps are not working properly and you need to insert some of the pressure there to get your 6.7 started. All you need to do is find a gas tank and connect the nozzle to the pump. Free up the pressure on the tank and start the vehicle with ease.

people also ask (FAQs)

It’s time for the most asked questions by you guys. I have been in the technical field for a long and can surely answer some of your questions. Let’s check them out.

What Happens When High Pressure Fuel Pump Fails?

In a nutshell, it won’t be capable of injecting any fuel into the combustion chamber.

How Long Do High Pressure Fuel Pumps Last?

It entirely depends on how much you use your vehicle. The most you will get is 200,000 miles, and the average number is 100,000.

How Do You Check The Pressure In Fuel Pumps?

You can always use a pressure gauze and connect it to your pump to find out the pressure.

Take away

To conclude, that’s all for 6.7 Powerstroke high pressure fuel pump failure symptoms. The symptoms are so pathetic that you cannot go without noticing them. The most annoying ones are the noises, lower mileage, and an unstable performance where you don’t know what’s going to happen next.

On the other hand, if you live in a humid climate, then it will feel extra summery. However, there’s no permanent solution, but changing the pump would stand under $1000 to complete the entire setup. Also, make sure this doesn’t happen again by using good quality oil.

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Mahir Ahmed


I'm the guy responsible for ensuring honest, informative, accurate and helpful guide to the reader.

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