Hello, this form is not going to be able to give you a shot manual instructions on how to make repairs to your sliding door woes.
https://repairpal.com/auto-repair-near-me
Use that link to find a shop near you who can assist.
RepairPal Certified shops can diagnose and repair your 2007 Honda Odyssey. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.