wont start mechanic said engiene froze but no noise not overheating had oil

Hello, the engine could have seized for multiple unknown causes. If something came apart inside, it could cause the moving components to stop. I would say it isn't very common for a catastrophic failure without lack of lubrication or without overheating, but it is possible. Certainly obtain a second opinion to ensure the current condition. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.