how to replace fuel injectors on a 4.2 chevy trailblazer

I believe you will be needing a special tool to remove the fuel line (slitted, so you can slip it over the line with an angry-edged tip) from the injector, then there is a retaining clip that retains the injector~ there are metal and plastic (do the same thing)~

pleace you can send me a video about the steps of replacing fuel injector on a chevy trail blazer 4.2 vortec 2006.

I need a video on how to replace a fuel injector on a 2002 trailblazer a straight 6 4.2 motor

If your fuel injector is working right would it make your vehicle skip