A friend has a 1997 Explorer four door. Recently one of the rear door power locks started giving intermittent problems. He could hear the switch activate, and the locking post would move a bit, but it would not unlock. He couldn't even pull the lock post up. The inside door handle would also not unlock the door, though it normally would. Now, both doors are doing the same thing. He can't remove the door panels with the doors closed. A dealer gave him an estimate of $300 when he took it in with just one door giving the problem. Anyone got any ideas? If he uses a "slim jimmie" to pop the locks, will it damage the mechanism?

Chuck