I'm trying to remove #5 injector and it definitely "seems" to be stuck in the head. No I haven't purchased tool #9010 (Clamshell injector puller). I am however very intuitive and was able to build something else out of another puller I had that seemed to allow me to apply Enough pressure that I thought, should've removed it.
So here's my concern, I still drove my '05' Dodge for 3-4 months after knowing the #5 injector had quit operating.
I had to change my serpentine belt twice during this time to which I chalked off as the miss from #5 cylinder not firing.
I'm very sad to think of my worst case scenario here but haven't given up hope yet.
Please offer your thoughts on what's going on and what you think about my situation....

 

Maybe give your local diesel shop a shout. They maybe able to give you an idea of force required to remove injector. Depending on what caused that injector to fail. And mileage, the others maybe right behind.