I have a 91 p2 with a 150 yammie , and about 6wks ago I was idling along at about 5/6 k for 5 min or so and the solid buzzer goes off so I take it in and have the water pump replaced ” it had been 2-3 yrs since it had ” So I get the boat back and all is well until today while idling around on the same lake it goes off again! I dont have a water pressure gauge but it is peeing fine , hell it was before, Any ideas on this ?thnxmark