2019 Ford F350 Engine 6.7 L V8 Diesel – The Ultimate Guide To Power
The 2019 Ford F350 engine 6.7 L V8 diesel is a legendary powerplant known for its massive 935 lb-ft of torque and 450 horsepower. This guide explores everything from essential maintenance and common failure points like the CP4 pump to performance upgrades that help this Super Duty conquer any job site or off-road trail.
You probably already know that the 2019 Ford F350 is a workhorse designed for the heaviest loads and toughest terrains. Whether you are hauling a massive fifth-wheel trailer or navigating a muddy construction site, this truck is built to handle the pressure without breaking a sweat.
Owning a 2019 ford f350 engine 6.7 l v8 diesel means you have one of the most refined versions of the Power Stroke family under your hood. However, keeping this sophisticated machine running at peak performance requires more than just a passing interest in maintenance.
In this guide, we will break down the technical specifications, highlight the common issues every owner should know, and provide a clear roadmap for DIY maintenance. By the end, you will have the confidence to manage your truck’s health and optimize its performance for years to come.
Understanding the Specs of the 2019 ford f350 engine 6.7 l v8 diesel
The 2019 model year represents the pinnacle of the second-generation 6.7L Power Stroke design. Ford engineers spent years refining this engine to deliver incredible low-end torque while maintaining surprisingly quiet operation for a heavy-duty diesel.
This engine features a compacted graphite iron (CGI) block, which is significantly stronger and lighter than traditional grey iron. This allows the engine to handle higher combustion pressures, which is exactly how it produces those 450 horsepower and 935 lb-ft torque ratings.
The fuel system is equally impressive, utilizing a high-pressure common-rail system that can pulse fuel up to five times per combustion cycle. This precision reduces “diesel clatter” and ensures that every drop of fuel is used as efficiently as possible for maximum power output.
The Turbocharger Advantage
Unlike earlier versions of the 6.7L, the 2019 model uses a Garrett GT37 single-variable geometry turbocharger (VGT). This setup provides instantaneous boost at low RPMs while preventing overspeeding at high loads.
The VGT acts like a small turbo for quick spooling and a large turbo for top-end power. This eliminates much of the “turbo lag” that older diesel trucks were famous for, making your towing experience much smoother.
Transmission Pairing
This engine is mated to the TorqShift 6-speed automatic transmission (6R140). While the 2020 models moved to a 10-speed, many enthusiasts prefer the 6R140 for its proven durability and straightforward maintenance requirements.
Essential Maintenance for Longevity
If you want your 2019 ford f350 engine 6.7 l v8 diesel to reach the 300,000-mile mark, you cannot skip on the basics. Diesel engines are much more sensitive to fluid quality and filtration than their gasoline counterparts.
Regular oil changes are the lifeblood of this V8. Ford recommends a high-quality 10W-30 for normal conditions, but if you are towing heavy or operating in extreme heat, switching to a 5W-40 full synthetic is a smart move for better protection.
Don’t forget the fuel filters, as this engine has two of them. One is located under the hood, and the other is mounted on the frame rail near the fuel tank; both should be replaced every 15,000 to 20,000 miles to protect the sensitive injectors.
The Importance of DEF and DPF
The 2019 Power Stroke relies on Diesel Exhaust Fluid (DEF) to reduce nitrogen oxide emissions. Always use high-quality DEF and never let the tank run completely dry, as this can put the truck into “limp mode.”
Your truck also features a Diesel Particulate Filter (DPF) that catches soot. The engine performs a “regeneration” cycle to burn this soot off; if you only drive short distances, make sure to take the truck on a 20-minute highway drive once a week to complete this cycle.
Cooling System Care
This engine uses a dual-cooling system with two separate radiators and two different thermostats. One circuit handles the engine block, while the other manages the intercooler and transmission fluid temperatures.
Check your coolant levels frequently and ensure you are using the specific Orange or Yellow OAT coolant required by Ford. Mixing different types of coolant can lead to “gel” formation, which will quickly clog your internal passages.
Common Problems with the 2019 ford f350 engine 6.7 l v8 diesel
No engine is perfect, and the 2019 6.7L Power Stroke has a few specific areas where owners should stay vigilant. Identifying these issues early can save you thousands of dollars in repair bills down the road.
One of the most discussed issues is the Bosch CP4.2 high-pressure fuel pump. While more reliable than the versions found in 2011-2014 models, the CP4 can still fail if it encounters contaminated fuel or air, potentially sending metal shards through the entire fuel system.
Another common concern is the EGR cooler. Over time, soot can build up inside the cooler, leading to restricted flow or internal leaks. If you notice your coolant levels dropping but see no puddles on the ground, the EGR cooler is a likely culprit.
The “Death Wobble” Myth vs. Reality
While not strictly an engine issue, many F350 owners associate the 2019 model year with steering oscillation, often called the “death wobble.” This is usually caused by worn track bar bushings or steering dampers.
If you feel a violent shaking in the steering wheel after hitting a bump at highway speeds, inspect your front-end components immediately. Upgrading to an aftermarket steering stabilizer can often mitigate this issue and improve overall ride quality.
Soot Accumulation in the Sensors
The Exhaust Back Pressure (EBP) sensor and the MAP sensor can become coated in oily soot over time. This leads to inaccurate readings, causing the computer to mismanage boost levels and fuel delivery.
Cleaning these sensors with a dedicated electronic cleaner every 50,000 miles is a simple DIY task. It can restore lost fuel economy and ensure the engine responds crisply to your throttle inputs.
Top Performance Modifications for Off-Road and Towing
For many owners, the stock power of the 2019 ford f350 engine 6.7 l v8 diesel is just the starting point. The aftermarket for this engine is massive, offering everything from mild efficiency boosts to wild horsepower gains.
A Cold Air Intake (CAI) is often the first modification owners choose. Systems from S&B or Banks Power provide better airflow and a more aggressive engine note without requiring a computer reflash, making them a great “stage one” upgrade.
If you are looking for more significant gains, an electronic tuner or programmer is the way to go. These devices allow you to adjust fuel mapping, transmission shift points, and boost levels to suit your specific driving needs.
The CP4 Bypass Kit: A “Must-Have” Insurance Policy
Since the CP4 pump is a known weak point, many owners install a Disaster Prevention Kit (also known as a bypass kit). This kit ensures that if the pump fails, the debris is routed back to the tank rather than into the injectors.
Installing this kit is a bit technical, but it is much cheaper than replacing the entire fuel system. It is one of the best ways to gain peace of than mind when traveling through areas with questionable fuel quality.
Exhaust Upgrades and Legality
Upgrading to a 4-inch or 5-inch DPF-back exhaust can lower your exhaust gas temperatures (EGTs) slightly and improve the look of the truck. However, keep in mind that removing the DPF (deleting) is illegal for street-driven vehicles in most regions.
Stick to “emissions-compliant” tuning and exhaust parts to ensure you can pass inspections and maintain your resale value. Modern emissions-on tuning has become incredibly efficient, offering power gains without the black smoke.
DIY Troubleshooting Tips for the Weekend Mechanic
When your Check Engine Light (CEL) comes on, don’t panic. Many issues with the 2019 ford f350 engine 6.7 l v8 diesel can be diagnosed with a basic OBD-II scanner and a little bit of patience.
If you experience a sudden loss of power, check your intercooler boots first. These rubber couplers can sometimes slip off or crack under high boost, resulting in a massive vacuum leak that prevents the turbo from doing its job.
White smoke from the exhaust usually indicates unburnt fuel or coolant entering the combustion chamber. If the smoke smells sweet, you likely have an EGR cooler leak; if it smells like raw diesel, you might have a hung-open injector.
Testing Your Batteries
Diesel engines require an immense amount of cranking amps to start, especially in cold weather. The 2019 F350 uses two batteries wired in parallel; if one fails, it will quickly drain the life out of the other.
Use a multimeter to check the resting voltage of each battery separately. If you see anything less than 12.6 volts after the truck has been sitting, it is time to charge or replace them before they leave you stranded.
Checking for “Fuel in Oil”
During the DPF regeneration process, extra fuel is sprayed into the cylinders. Occasionally, some of this fuel can wash past the piston rings and end up in the oil pan, a condition known as “making oil.”
Check your oil dipstick weekly. If the level is rising or the oil smells strongly of diesel fuel, you need to change the oil immediately and investigate why the regeneration cycles are happening too frequently.
Frequently Asked Questions About 2019 ford f350 engine 6.7 l v8 diesel
What is the oil capacity of the 2019 6.7L Power Stroke?
The 2019 ford f350 engine 6.7 l v8 diesel requires 13 quarts of oil, including the filter. Always use an OEM-grade filter like the Motorcraft FL-2051S to ensure proper flow and filtration.
How often should I change the DEF fluid?
You don’t typically “change” DEF fluid; you simply refill it as the truck consumes it. Most owners find they need to refill the 7.5-gallon DEF tank every 5,000 to 8,000 miles, depending on how much they are towing.
Is the 2019 model better than the 2020 model?
The 2019 model is highly regarded because it uses aluminum pistons and the 6-speed transmission, which some find more reliable. The 2020+ models moved to steel pistons and a 10-speed transmission, offering more power but with a more complex setup.
Can I use B20 biodiesel in my 2019 F350?
Yes, Ford has rated the 2019 6.7L V8 to handle up to B20 biodiesel. However, if you use biodiesel frequently, you should shorten your fuel filter replacement intervals as biodiesel can act as a solvent and loosen tank deposits.
What are the symptoms of a failing CP4 pump?
Common symptoms include long cranking times, a “low fuel pressure” warning on the dash, or the engine dying suddenly while driving. If you suspect a failure, do not try to restart the engine, as this can cause more damage.
Final Thoughts for the Super Duty Owner
The 2019 ford f350 engine 6.7 l v8 diesel is a remarkable piece of engineering that offers a perfect balance of brute strength and modern technology. By staying on top of your fluid changes and keeping an eye on the fuel system, you can enjoy the full potential of this V8 for years.
Remember that preventative maintenance is always cheaper than a major repair. Treat your truck with respect, use high-quality parts, and don’t be afraid to get your hands dirty under the hood to ensure everything is in top shape.
Whether you are heading out for a cross-country haul or just tackling some weekend chores, your Power Stroke is ready for the challenge. Stay safe, keep your filters clean, and enjoy the incredible power of your Ford F350!
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