Ford 6.7 Diesel Problems: Get Protection Under Lemon Law

May 14, 2024

The phrase “Built Ford Tough” is more than a great marketing slogan. It is a mission statement that most Ford trucks, especially those in the Super Duty line, have lived up to for years. However, even Ford’s toughest trucks and most durable engine, the 6.7L Power Stroke V8 turbo diesel, are prone to problems from time to time.

If you’re the proud owner of a diesel-powered Super Duty, it’s important to familiarize yourself with the common Ford 6.7 diesel problems you might encounter. Let’s talk about Ford 6.7 biodiesel problems and, more importantly, what you can do if they become a recurring nightmare.


Is the Ford 6.7 Diesel a Good Engine?

There’s no question about it — the Ford 6.7 diesel is a beast of an engine. Its power and torque will allow you to pull everything from a big load to a heavy trailer. Since its introduction in 2011 as part of the Super Duty lineup, Ford’s made sure that this engine isn’t just about raw power; it’s also equipped with the latest tech to help harness that power.

With its advanced fuel injection system, turbochargers, and robust build, it’s engineered to give you a smooth, responsive, and power-packed ride. And Ford keeps working to make it better. The engine has been around for over a decade, and it could stick around for another 10 years due to its reliability and timeless design.

However, like any complex machinery, the 6.7 has had its fair share of problems. While the manufacturer ironed out most Ford diesel engine problems, you might encounter a few common issues. If you notice a problem with Ford 6.7 diesel engines, the key is to act fast to prevent severe damage. With that in mind, let’s explore some issues you might encounter.


What Are Common Ford 6.7 Diesel Problems?

Super Duty trucks should be capable of withstanding the rigors of daily use without flinching. And most of the time, they will. But sometimes, your trustworthy Super Duty will encounter unexpected issues that lead to a loss of performance or, worse, leave you stranded on the side of the highway. Here are the Ford 6.7 diesel problems you need to know about:

EGR Cooler Issues

Your Exhaust Gas Recirculation (EGR) cooler plays a vital role in reducing nitrogen oxide emissions by cooling the exhaust gasses before recirculating them into the engine. It’s a gem for the environment, but the system is extremely complicated, which can cause all sorts of headaches.

The symptoms of a failing EGR cooler can range from the engine overheating to white smoke billowing from your exhaust. It’s not something to ignore, as it can lead to serious engine damage. Stay alert to the signs, and don’t hesitate to get it checked out. Also, don’t wait until your next service visit. Instead, take it to your dealer immediately, as EGR cooler issues can cause significant problems in a relatively short time frame.

Diesel Turbo Failure

One of the best parts about owning a Super Duty with a Power Stroke is hearing that turbocharger hum as you press down on the accelerator. The turbocharger is what gives your truck that extra burst of power. While turbochargers are usually quite durable, the 6.7 can occasionally suffer from turbo failure. This Ford 6.7 diesel problem can sneak up on you, so you must closely monitor how your truck sounds and performs.

Typically, turbo failure starts with a lack of power. Your engine light may come on, and that hum you like so much might turn into an unpleasant noise, like a high-pitched whistle.

Why does this happen? It could be due to anything from clogged air filters to incorrect engine oil. Regular maintenance is your turbo’s best friend, so keep that schedule as tight as possible.

In between visits, always pay attention to how your truck sounds and drives. In addition, glance down at the turbo gauge from time to time. When you accelerate rapidly, causing the turbo to kick in, you should see the PSIs climb.

Fuel Injector Failure

Fuel injectors are responsible for feeding a precise amount of diesel fuel into the cylinders of your 6.7L powerhouse — and doing so at the perfect time — to ensure that your engine runs as it should. If they are off by even a small margin, it can lead to poor idling, reduced power, and increased fuel consumption.

There are a few possible culprits. Bad fuel, infrequent oil changes, or a failure to keep up with fuel filter changes can leave your fuel injectors out of sync. You may consider switching to a full synthetic oil and higher-quality filters. While this isn’t necessary, it can help you keep your fuel injectors running at their best.

EGT Sensor Failure

The Exhaust Gas Temperature (EGT) sensor protects your truck from the dangers of high-temperature exhaust fumes. When it fails, you could face some severe engine damage. The good news is that some extra layers of protection are in place.

Usually, if your EGT goes down, you’ll see a warning light come on, or your fuel efficiency will drop. If your truck suddenly starts acting in an unusual manner, get it to a mechanic right away. Never ignore warning lights or significant performance changes.

Radiator Coolant Leaks

A behemoth of an engine like the 6.7L Power Stroke produces a lot of heat. The radiator is responsible for keeping your 6.7L engine in a safe temperature range. However, your radiator needs enough coolant to perform as it should.

If your radiator begins leaking coolant, it won’t be able to cool your engine as efficiently. Once coolant levels drop below safe minimums, you could experience overheating and severe engine damage.

Radiator coolant leaks can be linked to a puncture in the radiator itself, deteriorating hoses, or even a loose hose clamp. That’s why you should keep an eye on that temperature gauge and watch out for puddles under your truck. Also, regularly check your fluid levels between oil changes. If your coolant seems to be disappearing, do a once-over for leaks.

Cracked Exhaust Manifold

The exhaust manifold collects exhaust gasses from the cylinder head and funnels them out to the exhaust. It can take a beating with extreme temperatures and pressure. Your exhaust manifold can even crack prematurely if there is a manufacturing defect or your engine is running a little hot.

A cracked exhaust manifold can open the door to many other problems. Strange engine noises, poor performance, and the smell of exhaust fumes in the cab are all possible signs of a cracked exhaust manifold.

The good news is that, with Ford 6.7 diesel problems, most are easy to detect, especially if you know your truck and how it usually performs. If anything seems out of the ordinary, look into it. And if necessary, take your vehicle to a licensed mechanic.


Ford 6.7 Diesel FAQs

Whether you already own a Super Duty with a 6.7L Power Stroke or are in the market for a powerful truck, it’s important to learn more about this popular engine. Here are some common questions you might be asking.

How Good Is the 6.7 Ford Diesel Engine?

Launched in 2011, this powerhouse was Ford’s answer to demands for a high-performance, in-house-designed truck engine. It’s known for its robust power and torque, capable of towing a boat, RV, massive trailer, or anything else you can hitch up to.

The strength of the 6.7 lies in its impressive horsepower and torque numbers, which have steadily increased with each new model year. The tech isn’t shabby, either. It boasts unique inboard exhaust and outboard intake architecture to reduce turbo lag and deliver a responsive driving experience.

Are There Any Problems With the Ford 6.7 Diesel Engine?

The Ford 6.7 diesel is no stranger to issues — some of which we’ve covered, like EGR cooler concerns, turbo troubles, and fuel injector failures. Others, like the occasional EGT sensor or radiator leak, are less common but must be on your radar nonetheless.

While these problems can seem intimidating, you should view them in the light of the engine’s overall reliability and performance. Most 6.7L owners will enjoy a power-packed, reliable driving experience. A select few will encounter major headaches and might even have to seek compensation under the Lemon Law, but more on that below.

How Is the Ford 6.7 Diesel Holding Up?

Ford has stuck with the 6.7 Powerstroke for over a decade and continues to refine its go-to diesel powerhouse. The 6.7L diesel engine gets a little better each year, resulting in increased durability, longevity, and performance.

Overall, the 6.7 has held up great. Do a quick Google search, and you’ll see thousands of 6.7L-powered Super Duty trucks for sale, dating back to the 2011 model year. That speaks to the staying power of the 6.7.

However, if you want to avoid Ford 6.7L diesel problems, getting a newer truck is probably wise. These engines are not problem-proof but far more refined than earlier versions.


Lemon Law Help With Timothy Abeel

Check out our free guide, How Does Lemon Law Workto learn more about Lemon Laws and what you can do about your Ford 6.7 issues. If you think you might have a Lemon Law claim and reside in Arizona, California, Florida, New Jersey, Ohio, Oregon, Pennsylvania, Tennessee, Texas, or West Virginia, Timothy Abeel & Associates may be able to help.

At Timothy Abeel & Associates, we have considerable experience with Lemon Law, breach of vehicle warranty, and dealer fraud claims. Our knowledgeable team will fight for justice on your behalf.

Need help determining whether your Ford 6.7 problems qualify for a Lemon Law claim? Give us a call, and we’ll provide a free case evaluation. And don’t worry; even if we take your case, you won’t have to pay any out-of-pocket legal fees. The vehicle manufacturer must cover our costs and expenses if we obtain a settlement. Best of all, you’ll owe us nothing if we don’t receive a payment or compensation.

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