RECox286 wrote:Bingo ! that is the place where the spring should be, and obviouly it is not. Also note that the pin is not all the way down where it should be. Although, it is very close, so make sure the lock on the pin is holding it in place by trying to push it up (it shouldn't go any higher than it is) In the picture I also see a lot of grease/dirt buildup on the roller and on the track. Alll the tracks and rollers must be CLEAN and Lubed in order for everything to work. You may have to remove the roller assemblies, one at a time, to get them cleaned and freed up. The door won't workvery well, if the rollers don't roll. And Also, you should see if the door latch bolt is in good alignment with the latch of the door (same area, but just above what is shown in the picture, and located on the door jamb). You may have to adjust the bolt a little. #50 Torx. I had one that was worn so bad, I had to change it to get the door to latch properly. If when the door is all the way open, it is hard to release the bottom latch, you can insert a spacer between the release cable and the locking lever (bottom roller assembly).
Take your time, and good luck. Let us know how you make out. Hope all this helps. Try to look at things logically.
Thank you for helping. My service manual does not seem to mention that spring. I suppose it will be a trip to the local GM Stealer, I mean Dealer, to order the spring. I'll update after further work.