Here's the story, the family and I packed up the Sea Ray 190 Sport and headed to the Florida Keys for a little vacation. The first day we had it in the water, we ran aground (anyone who knows the Keys will understand). Since that happened, the engine warning buzzer began sounding at pretty random intervals, forcing us to idle until it stopped. We discussed the problem with a couple of shops and the general consensus was that the thermostat was broken. We replaced it ourselves (every shop within a 2 hour distance is backed up at least 2 weeks) but the problem still exists. All fluid levels are ok and nothing seems excessively hot. At this point, we're stumped. Any help would be greatly appreciated.
