replace fuel injector

How do you replace a fuel injector on 02 chevy trailbrazer Ls and where is it?
thanks for your help

From the looks of it, the intake manifold has to be pulled to access the fuel rail. Check pages 17-19 here: http://media.gm.com/division/powertrain/news/4200_Tech.pdf How do you know you have a bad injector? I've not heard of fuel injector problems with the 4.2L

Joel

How do you replace a fuel injector on 02 chevy trailbrazer Ls and where is it?
thanks for your help
Respect here, but with that question I suggest you get a pro to do it!