Injector Life Expectancy

[Texasdude74]

Some people get a million plus out of injectors and some seem to need new ones every 2-300k. How you run the truck makes a huge difference.

I personally consider non Detroit injectors worn out between 20-25k hours and 5-6k hours for a Detroit. I also would never rebuild an engine and not replace all six injectors, no matter what brand of engine. Weak injectors take a heavy toll on an engine. It's not anywhere near as simple as they either work or they don't with diesel injectors. They can do all kinds of screwy things and fail in different ways.