I have a 2006 Kia Sedona with about 85k on it. About 2 months ago it began not starting (no engine turn over whatsoever). I took it to the dealer and they could not get the problem to repeat. When I pressed the service manager he told me to "bang on the fuse box" while trying to start it. Oddly, that seems to work. Something about the power relay (I might have the terminology wrong here). Last week my (1 year old) battery died. Another Kia dealership also found nothing wrong with the van but also mentioned the power relay as a possible cause of the period non-starting but didn't think that could damage the battery. Car is yet again, not starting sometimes. Banging on the fuse box as per the first service manager still works but this is not a permanent solution. Don't want to spring for a new power relay (??) since they can't definitively diagnose that. Any ideas? Thanks in advance.