I have a 1996 proline with a 260 merc i/o. I have been hearing a high pitched sound that goes on every now and then and drives me nuts. I think its my low oil pressure alarm but my oil pressure is 40+ pounds all the time. Water temp 150-160 mostly 150. The alarm only goes off under 1000 rpms. And it goes on and off. Its not constant. I think its a corroded wire, but dont no where the alarm is located. Has this happend to anyone before? Casn anyone help me.
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