As Ford continued looking for a perfect Power Stroke engine, the 6.7L Powerstroke was launched to secede the 6.4L version. This new engine in the Powerstroke diesel line could deliver up to 400hp and 800lb-ft of torque without any further modification – after it is brought out of the factory.
Although this particular power stroke engine worked better than its predecessors, it had its own problems. Here, we’d analyze the core 6.7 Powerstroke problems you may experience while using the engine on your Ford vehicle.
These problems aren’t imminent per se, but they are most likely to occur – so you should watch out.
What is 6.7 Powerstroke?
The Ford 6.7L Power Stroke engine, nicknamed “Scorpion,” is an in-house-built Powerstroke engine developed to outperform all other Powerstroke engines that existed before its production. Everything about the 6.7L was crafted and finished by Ford’s in-house expert engineers.
For over a decade, up until today, the 6.7L power stroke engine is still in use by Ford in its Super Duty rigs – since 2011. There have been three generations of this diesel engine: first-gen 2011-2014; second-gen 2015-2019; and the third gen from 2020 to date.
Features of the 6.7L include advanced Exhaust Gas Recirculation (EGR) components, a DPF, and Bosch’s Denoxtronic-Based Selective Catalytic Reduction (SCR).
You can enjoy up to 400 hp from this engine at 2,800 rpm and 800lb-ft of torque at 1,600 rpm. Also, the 6.7L had better fuel economy; it is one of the best power stroke engines ever made.
Common 6.7 Powerstroke Problems
1. Injection Pump Failure
Well, injector/injection pump failures are common with diesel engines. Although Ford used Bosch’s CP4 injection pump in most 6.7L models, the pump typically fails after many miles. This happens because of a metal-to-metal contact inside the pump.
Injection pump failure is typically indicated through engine stalling, hard starting, rough idling, or loss of power while driving (acceleration). The cost of fixing the injection pump to go above $1,500 – and get as high as $5,000 – depending on the degree of damage.
2. EGT Sensor Problems
If the EGT (Exhaust Gas Temperature) sensor starts malfunctioning, it can affect the engine’s after-treatment system, which could trigger the check engine light to come on.
This sensor relays the exhaust gas temperature to the ECU/PCM. Well, getting this sensor fixed doesn’t cost so much – approximately $200 (including labor and parts cost).
3. Turbocharger Failure
Again, just as with the other versions, the turbocharger in the 6.7L typically fails after many miles. Yes, the 6.7L comes with a newly-designed turbocharger, but the architecture is the same as the turbos in previous Powerstroke engines.
Well, the turbo failure starts in the charger bearings. However, this problem was commonly reported in the earlier models of the 6.7L engine; newer models of this engine seem to hold up pretty well – even after many miles.
4. EGR Cooler Clogs
Not only do the EGT sensors typically fail in the 6.7L Powerstroke, but the EGR Cooler also fails – typically. The EGR cooler is installed in Power Stroke engines to make them comply with the Euro 6 emissions standard.
This device cools down the exhaust gas being recirculated into the engine; cooling down the exhaust gas reduces the NOx values significantly. However, this device can get clogged; when that happens, the engine will start producing more harmful emissions.
Some common EGR cooler failure symptoms include engine overheating, engine stalling, and your car not passing emissions tests. Yeah, some people delete the EGR Cooler, but it’s illegal – and not advisable too. Replacing a bad EGR cooler costs less than $150.
5. Radiator Coolant Leaks
Another common problem with Power Stroke engines is “leaks,” usually coolant leaks. This Powerstroke engine actually has dual radiators; however, it is the primary radiator that typically leaks coolant. You would see the leaks dropping from under the hood – so this fault is easy to detect and fix.
6. Uncommon Problems
Here are other uncommon problems you may face with the 6.7L Power Stroke engine: cylinder head crack, water pump failure, fuel system faults, and particulate filter clogs.
These problems are not as common as the ones above, but they have been reported by quite a number of 6.7L power stroke owners.
See Also: Common 6.0 Powerstroke Problems
In conclusion, the 6.7 Powerstroke problems are manageable and can be easily detected. Notwithstanding, if you keep up with the maintenance schedule, use the recommended fluids, and act proactively to unusual symptoms, then you can avoid/prevent most of these problems from occurring.
The 6.7L Power Stroke is currently the most efficient Ford Powerstroke engine; it satisfies the EURO 6 emissions standards and produces serious horsepower and torque for any kind of application.
This diesel engine has been in use for most Ford trucks manufactured from 2012 to date. It’s a decent, fuel-efficient, powerful engine.