Once again, this thread and another saved the day.
I fixed my driver side door a year ago ... now the passenger side lock was acting up on my 98 Sport. It was only working "halfway" ... firing each time, but not moving enough.
Expecting to fix this door the same quick way, I dove into it, installed a spring and tested it out..... still only working "halfway". Started looking around inside the door ... the actuator was flopping around, not really anchored down!
There is a rivet that holds the actuator to the inner door skin and that had broken.You can see this on your door, on the metal part, just above the lower rear rubber bumper. Easy to check without disassembling the door.
The broken rivet was still attached in the bracket in the actuator. It was hard to see how the actuator was hooked up, so I tried several ways to dislodge the rivet while the actuator was still installed in the door, but it was just a hassle.
I unbolted the rear window track (remove the one screw and pull it straight down) and got it out of the way. Everything was easier to see then. Unhook the wiring from the actuator, and pop the clip out holding another wire away from it, and you can swing the actuator up. Once raised enough, you can unhook it from the latch by pushing the arm toward the back of the door. It is merely hooked into a hole in the latch arm.
Once out, you can put the actuator in a bench vise, supported by the back edges of the bracket. A couple of firm pops with a hammer and punch will knock the rivet into the bracket and loosen it. You can then fish it out with a pliers. You have to knock it in because of the odd tabs on the back of the rivet.
I replaced the rivet with a short hex head bolt and locking nut. Tape the locking nut to the inside of the bracket to hold it in place. (trust me ... getting a tool in there is bad) Put a washer between the door and the bolt and tighten it up.
Then, hook the wiring back up. Reinstall the window track (you can feel where it will slide up next to the window ... push it back up into that area) and install the screw that holds the track back into the original marks in the door paint to assure that it goes back in the right place. While I was in there, I shot some silicone spray on the window tracks for good measure.
Everything should work 100% at this point. When testing the window, go slow and be sure that it isn't binding. Readjust the track if needed.
This worked well ... the only bad thing is that the simple spring repair turned into an all-out thrash, because the truck was needed this afternoon ... I made it, but halfway through the new complication, there was some bad language flyin' ....