* 6.0L Power Stroke (2003-2007): This engine is widely considered to have had the most significant problems, including head gasket failures, injector issues, and EGR cooler failures. These problems were expensive to repair.
* 6.4L Power Stroke (2008-2010): While an improvement over the 6.0L, the 6.4L Power Stroke also suffered from injector and high-pressure oil system issues, leading to costly repairs.
Many owners and mechanics consider these two engine generations to have had the most widespread and serious problems, making the years 2003-2010 a problematic period for Ford diesel engines.
It's crucial to remember that:
* Not all engines failed. Many vehicles with these engines ran without major problems.
* Maintenance plays a significant role. Proper maintenance and timely repairs can mitigate some issues.
* Later model years of the Power Stroke have seen significant improvements. The issues in the 6.0L and 6.4L engines prompted Ford to make significant engineering changes.
Therefore, while 2003-2010 is often cited as a period with significant problems, it's best to research the specific engine (e.g., 6.0L, 6.4L, 6.7L, etc.) and year you are considering to fully understand its potential reliability issues.
