metal on metal noise on startup

Hello, totally impossible to say until a trained technician listens to your noise and can weigh in. Metal on metal - momentary - sounds more like starter motor delayed disengagement from the ring gear on starting. Or even an engine accessory like an air conditioning compressor engaging for the first time. 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.