My 2005 CRV rear door does not close tight. After closing the door, I can push another 1/4 inch before the door seems fully closed. The rear dome light and dash warning light flashes when driving. This has only recently started to be a problem. (61K miles) I am pretty handy, have loosened and tightened screws on latch, but does not help. Is there something else i can try before bringing it in to mechanic?