I drove my van through water and about five miles later it died with no warning

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Driving through water can sometimes lead to engine or electrical issues, especially if water got into places it shouldn't. If your van died with no warning and now just clicks when you turn the key, it could be a few things. The click often indicates a problem with the starter or a related component. The harmonic balancer issue mentioned could be valid if it's seized or damaged, but it's more likely related to the starter or alternator, especially with your alternator whining. Water might have caused electrical problems or short circuits. Start by checking the starter and alternator for damage. Also, inspect for any water damage or corroded connections in the engine bay. If you’re unsure, a professional diagnostic can help pinpoint the exact cause. If you need more advice, have other questions, or need to find a certified repair shop in your area, just let me know! Call us at 877-913-1554, and we'll gladly find you a certified RepairPal shop in your area!