Rumble noise when accelerating from stop

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! A rumble and vibration when accelerating from a stop? Sounds like your van is auditioning for a part in a monster truck rally. Since you've already changed the engine and transmission mounts, I'd say your next likely culprit is the CV joints or possibly a torque converter issue. The van's driveline could be throwing a tantrum under quick acceleration. If it only happens when you stomp on the gas, maybe try a lighter touch — or just pretend you're in a slow-motion car chase. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554!