Need to change Fuel Injectors in 1998 Venture

I've never changed fuel injectors before. Is there anything special I need to do, or just go by the 6 injectors and figure out how to change them?
Thanks.

Why do you need to change them out? It's pretty unusual for a 1998 3.4L to need brand new fuel injectors. Are they leaking or not firing? Typical worst case scenario they need (an in van) chemical cleaning or removal & cleaning.
Joel

I bought it about year ago. 3 months later it started chugging like it was missing and the service engine light came on. Dealership said the #4 injector was bad. They replaced it and cleaned all the others... $600. Six months after that, same thing happened with the #1 injector... another $600. At that time they recommended that if another one goes bad we should just replace all the remaining 4 injectors. Well it's been 2 months and the vans doing the same thing again, and I don't want to pay $2,400 for the last 4. I've done a lot of repairs myself, but never fuel injectors. I'm sure I could do the mechanical side of the job, i.e. take a part off and put another part on. I just wanted to know if there was anything special I should do and/or check? Or maybe any trick to take them off. According to my previous bills, it was only $160 for the parts each time. So I'm willing to change all 4 myself as long as I "think" I can do it right :o)

Thanks for the input,
Ken

I don't know whether this helps or not, but one thing for certain is that you have to make sure that you have relieved all the fuel pressure to the injectors! If not, you are looking at anywhere from 40-60 psi of fuel blowing out at you when you remove the fuel connection...that's enough pressure to actually kill you if injected into skin. I have never changed the injectors on my Venture (and hope I'll never have to!), but on my '88 Thunderbird Turbo Coupe, you have to trip the rear end collision sensor which automatically shuts down the fuel pump, then start the car and let it run until it stalls, and try to start again just to be sure the fuel pressure is relieved. I am sure there is a similar device on the Venture.