I don't know if this is the problem you are having, but if your trunk won't latch properly because the latch won't reach the U-shaped hook it latches onto, it may be that it is the hook rather than the latch that has moved. I had this problem with my car. The hook, which is connected to the car with two screws, had moved down over time so that the latch would no longer reach it. Even though the latch was working fine, the trunk wouldn't close because there was too much distance between the latch and the hook. I solved the problem on my car by simply loosening the screws on the hook, sliding the hook up and retightening the screws. Hope this helps.