Mazda E2200 Diesel

Does anyone know anything about the E 2200s coolant alarm. It is continually going off, and driving me nuts. I have replaced the thermostat, and there is no problem with the cooling system. The trouble started on a long distance road trip, and occured only after stopping at a roadhouse. The alarm went of after restarting the car, and it has been going off ever since. Help!! I love my van otherwise.

May I suggest it is in fact the water in the fuel filter warning buzzer? Drain the filter and see what happens.
Wal

Try draining the filter.

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