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    Overheating but not Overheating

    I have a 2003 Merc 350 Mag MPI. The impeller is new, the system has been blown out but the temp gauge still showed it was overheating. I replaced the temperature sensor but the gauge is till behaving the same. It starts off low, slowly gets to 160-ish and then moves up rapidly to 250. At 250 I...
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    2002 Merc Mag MPI Overheats

    I have a 2002 Tige 22v that has decided to overheat. I have replaced the thermostat, the impeller, checked water flow before and after the oil cooler and everything seems to be working fine. When I run it on a fake a lake in my driveway at a bit of an angle (back end up), the temp gauge goes to...
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