It seems like there's no place to attach the spring ends, but there is.....

The square tab of the spring rests against in the groove in the dishwasher cup. The 2 ends of the spring (left and right) then tuck 'back' into the soap cup door. With the dishwasher door open (parallel to the floor), the 2 ends of the spring point straight down (perpendicular) to the floor, and the square tab of the spring is parallel to the floor. You have to tuck the 2 spring ends into the soap cup door one at a time so the spring will coil when you close the door an uncoil when the door is open.

In order to tuck the 2 spring ends into the soap cup door, you have to gently pry up one end of the soap cup door, and use a small screwdriver to push one spring end into the soap cup door. Then, push the first end of the soap cup door back, and repeat on the other side.

I attached 2 pictures that should help. It shows the final position of the spring.

I have been dealing with this issue for WAY too long. Thank you so much for your post and the reply that was sent, Great pictures!!:D

Yay!! It worked. I had fixed it once before myself, but the door attachment was weak where it attached to the pin dowel, so the spring came out again. I couldn't remember how I did it the 1st time and needed the new door anyway. Your post (with pictures) surely has helped many people.