What are the common problems with 6.7 Power stroke?

What are the common problems with 6.7 Power stroke

It has been more than 100 years of Ford introduced many innovations to the car and car engines. Their diesel-based car or truck engines coke up with newer and newer technologies from time to time, so to overcome the excessive problems with respect to them.

When it comes to diesel-based engines, in particular, a huge residue of carbon soot and gases are left. Since diesel generates an enormous amount of power by burning fuels, it is inevitable that it will not emit sooty gases. The engine carbon cleaning might be of some help, but Ford has tried to contribute as much to the better conditions of engines as much as possible.

What are the common problems with 6.7 Power stroke

What is 6.7 Power stroke?

Entitled “Scorpion” by the Ford engineers, 6.7 Power stroke is the brainchild of the talented Ford team. It is also their first turbo diesel engine without having any shared assistance from Navistar. Navistar and Ford have had a long partnership of introducing turbo diesel applications because of cooperation.

It was introduced in 2011. The original design varies from the upgraded version of 2015. Earlier, it had a sequential turbocharger (SST). It manifested a dual compressor and a single turbine setup.

Later on, the design of the turbocharger was changed with significant alterations to its geometry. These were beneficial as they helped in increasing the horsepower and torque of the engine.

Powering the Ford Duper Duty and Ford F-650 and 750, the engine has undergone many revisions and modulations since then. All these modifications are for the sole purpose of achieving maximum efficiency. A few variations have been done to its programming and boost. It has helped in the attainment of the highest torque, 1050lb-ft.

The Different Generations of 6.7 Power stroke:

The three-generation of 6.7 liters of Power stroke are discussed below. They have gone many changes to overcome the shortcomings in the previous ones.  However, some problems persist.

1st Generation:

This was the father series or the pioneer series of an in-house built engine by Ford. As with the new things, there are many problems initially, the Ford 6.7 1st Generation is no exception. The problem with the 1st Generation of 6.7 Power Stroke is that it is too heavy an investment for the features it gives. It may not fully serve you the purpose you want it for. It will give up more easily than its succeeding engines.

2Nd Generation:

Since the first one helped the engineers learn about the shortfalls of the 1st Generation, they came up with abundant upgrades. For instance; the turbo was upgraded to add more to the efficiency of the engine, EGR cooler flow was ensured to reduce the overheating of the engine, and much more. All of this was done to improve the market. Moreover, a good market can only be sustained with the longevity of the things you introduce. Thus, the second generation Power stroke did gain a reliability certificate to some extent.

3rd Generation:

The market for these engines is still being surveyed. Since it is a much recent addition, 2020, one cannot really say if it is a great advance over the former ones. But so far, there have been hardly any complaints. At the same time, looking at second-generation improvement over the first generation 6.7 Power stroke, we do expect the third generation to exceed the former ones.

The Useful Aspect of 6.7 Power stroke:

Probably the most notable engine and the most successful from its predecessors, the Ford 6.0 Power stroke is one of the most beloved engines of all time.  Its four-valve aluminum heads, CGI block, variable geometry turbocharger, and air-water intercooler, make it powerful, and reliable.

This diesel engine is the pioneer of many things in the world. Just a few of its features are mentioned below.

  • Compacted graphite iron block
  • Reverse flow heads
  • Four rockers and four pushrods per cylinder
  • Four valves
  • Air-to-water intercooler

In many ways, the 6.7 Power Stroke is the dream in its fulfilled form for the Ford team. They are, after all, successful in achieving one of the most efficient engines powered with the most excellent combustion system. Of course, they take pride in their beautiful invention.

The bitter side of the story:

With all its ups and ups, there still are some problems with the Ford 6.7 Power Stroke and this means there are chances to see a new better version of the engines than 6.7 already is.

Dieselliq is a platform that discusses vehicles and engines, compares and contrasts different automobiles, and analyses the engines. The platform has also covered 6.7 Power strokes. And here are the problems that they have surfaced;

  • EGT Sensor Failure
  • EGR Cooler Clogging
  • Injection Pump Failure
  • Radiator Coolant Leaks
  • Turbocharger Problems

The EGT Sensor Failure in the 6.7 Power stroke

The exhaust gas temperature failure is the commonest problem in 6.7 Power stroke. This engine might otherwise be a genius, but when it comes to its weaknesses, the EGT Sensor failure does blot its reputation to some extent.

The EGT system is responsible for the cleaning process. It measures the temperature of the gas exhausts at different stages. If any of the four sensors fail, chances are there will be greater damage to the engine.

Usually, replacement is offered, but the consumers are usually very much confused. At the same time, it is an expensive treatment but a necessary one too.

The Ford company has realized this and offers a warranty. As long as the engine is under the warranty period, Ford could cover you in case of a failure.

Some people delete the EGT sensors, but it isn’t something important to do. You can still run around with it.

The Signs Indicating EGT Sensor Failure:

The three basic signs that warn you about the failure and make you avail yourself the tiniest bit of luck that you are still under the warranty period.

Engine Lights:

The engine lights will blink, and continue to do so alarmingly you about the occurrence of this failure. Fault codes:

You would also receive a fault code.

Sudden failure:

Sometimes, it does not give you any warning signs. The engine will shut off, and you will be deserted on a road. Through our research from the Internet, we found tens of such drivers who complained that their sensors failed and engine shut down, later on, seeking professional help, they were informed of the sensor failure.

It is said that between 50,000 and 70,000 miles, the EGT sensors, or at least one of them are bound to fail.

That could be a little scary. However, its replacement has become a bit of an easier job as long as you know which one of your sensors has failed.

The EGR Cooler Clogging:

If you were a Ford user or enthusiast, you would know it too well. The 6.7 Power stroke has improved from the previous generations but sometimes these problems do occur.

The EGR Cooler is supposed to lower the temperature of the emitted gases. Debris and soot can cause the cooler to become clogged. Consequently, the engine overheats.



If the cooler is restrained with debris and residue of other gases, the Coolant flow is restricted. The engine overheats and dang, you have an out-of-order engine.

NOx Emissions:

The Emission of NOx continues to worsen the already existing failure.

Fault Code:

Fault code P0401 testifies it.

Engine Light:

It will infuriate a sign of “pull over”, perhaps the most dreaded sign, but engine lights do this for your sake. Time to look around your vehicle for the faults.


Again, an expensive option but you need to get rid of the faulty one.  It is a time taking process but the 6.7 ones are quite improved versions of 6.0 and 6.4.

Injection Pump Failure:

This one is a nightmare for the users. Just like one dead fish causes the stagnation of the whole pond, the failure of the injection pump could be fatal to other parts.

A metal-on-metal contact can be the major culprit of such a failure. This failure has made Ford an object of wide criticism and lawsuits. The Ford company has been working on it, and the third generation of these engines do not use it anymore.

Signs Indicating Injection Pump Failure:

Stalling, idling, and severe loss of power are the symptoms of a failed injection Pump. The pump, which is responsible for the pressured distribution of fuel to injectors, and common rail, when exposed to a malfunction, would not be able to pump fuel around. As a result, the engine will not startup. There would be a dry cough kind of situation. The engine will make loud dry noises.

The solution to the Injection Pump Failure:

The replacement of the whole fuel system causes you too heavily on your pockets. Since the metal poisoning destroys completely or parts of other components, thus making the expanse too large. Sometimes Ford really does drop the ball.

Radiator Coolant Leaks:

The Super Duty Trucks may display the onset of coolant leaks. The engine uses two radiators, among which the primary one is more susceptible to leaks.

Symptoms and Replacement:

Often people confused the change in color of the coolants as a leak in the radiator. This is not the case. To find out or investigate a leak, let your engine cool down first. Then check into the degas bottle and if the quantity of the coolant is low, it means there is a problem. You may as well perform a pressure test of the Coolant system. Take it to the professional mechanic, and he will be able to help you put detect the leaks as well as the replacement.

Overheating is another symptom of coolant leaks.

The Turbocharger Problems of the 6.7 Power Stroke:

The turbo failure occurs because Ford has tried to achieve maximum torque and efficiency while compromising on the size of the turbo. To generate a huge amount of power, the turbo size should be greater than the existing one.

The lateral generations might have improved, but the turbos are still a subject of sharp criticism. They can make one lose the positive image of the 6.7 Power Stroke.

Symptoms and Solutions:

When the turbo is about to stop working, it means that you will have certain clear signs Indicating that you are in trouble.

These are an explosion of smoke clouds, loss of oil, and inducement of cranking, loss of power, and target boost bit touched by the Turbo.

You can go for a replacement or upgrade. Some people like to add an additional turbo or a larger one but you must keep high speeds for those, otherwise, slow speed will damage the turbo.

Final Say:

How about tossing a coin? If it says heads, you go for the 6.7 Power stroke, if it is tail; you probably still go for the Forde 6.7 Power stroke.

For hundreds of years, the Forde has been conquering the market. It has only been a decade since Ford started out with its own series of 6.7 Power stroke also known as the Scorpion. Within these ten years, they have upgraded and presented models with reducing their shortcomings. Hence, there is hope for better and better versions. Even right now, it is too early for any starting project to gain so many achievements. The 6.7 Power stroke is best known for its efficiency.

However, as buyers and the ones who pay for investments like these, the company’s struggles should not matter. In the end, you cannot pay a heavy sum for something that may not render you a useful service. However, the expert opinion is that Ford 6.7 series is not at all a disappointment.

The turbocharger problems and the Emission related other problems are being looked upon and worked upon. The customers are in large numbers. The best thing is that Ford provides a warranty for possible failings of any system that are too common in their invention.

Moreover, the Ford customers have their own pages and Web apps that they use to seek guidance from the former experienced users of these engines. These platforms bring them together and inform them of all sorts of situations that could occur.

Thus, you need not be confused and will always be surrounded by a small community if you choose to power your trucks with these engines. Additionally, there are many workshops and online stores, that offer you services. The replacements are quite simply done.