Why Diesel Injectors Fail

Why Diesel Fuel Injectors Fail

Diesel injectors fail because of two main reasons. The first has to do with the mechanical soundness of the injector structure, and the second has to do with th

This is a pretty decent basic article on common causes of injector failure. It also does a nice job of covering why older, pre-common rail injectors are less subject to failure than newer injectors. Not only are older injectors subject to much less fuel pressure, they also generally fire fewer times per engine cycle which results in far less wear.