When my boyfriend locked my door a while ago, he said he felt as though there was a release of pressure, or that it didn't feel right after he locked it. So when we returned to the car and tried to unlock the door the door didn't unlock. There was no pressure behind the lock as there was before.

I tore the door apart when i got home cause I wanted to find the leak either from the Vacuum Pump lines or whatever else it could be but I couldn't. My mother also helped me and now my vacuum pump doesn't work at all because before I could lock the trunk and it would lock all of the doors accept the drivers side door, now it doesn't.

Now the interior lights don't come on when I open the doors.

How do I find the leak? What else could be the problem with the locks?