first I would check Isuzu dealers and see if they are still with Isuzu to do warranty work also BBB.
second bumps are not necesary for posts the same day. A new post or forum will show up as unread for each person as they come on each day. The system using cookies probably will tell each person this is a new forum no matter how many other members read the post already. The bump only makes people who already read the post come back thinking something new has been posted only to find someone just bumped the thread.