Rumble sound when starting from a stop.

The suggestions sound fine, but a physical inspection is necessary to figure this out. Unfortunately from a computer no one out here can hear the noise or sense what it feels like and where it can be coming from. A trained technician familiar with these vehicles will likely be able to pinpoint the cause in minutes -- from experience and skill. Seek out a shop near you: https://repairpal.com/repair-shops/honda-repair-and-service-in-boynton-beach-florida