I have a 1994 Regal 256 with the 5.7L Mercruiser and Alpha One outdrive. If I cruise around at about 1800 to 2500 RMP for say over 30 or 40 minutes, the engine alarm goes off. Now, my understanding of it is that is one of three possible things, outdrive oil too low, water temp and oil pressure. My outdrive oil bottle was leaking so I replaced that with a new one so i doubt that a brand new sensor is bad.
That leaves the water temp sensor and oil pressure sensor. When the alarm is going off, neither gauge is past the midline. Water temp is steady at 150 and oil pressure is at 42. The risers are cool and the oil is clean and at the full line on the dip stick.
I guess my question is can the sensor switch close and set off the alarm with out the guage being effected?
Mike
That leaves the water temp sensor and oil pressure sensor. When the alarm is going off, neither gauge is past the midline. Water temp is steady at 150 and oil pressure is at 42. The risers are cool and the oil is clean and at the full line on the dip stick.
I guess my question is can the sensor switch close and set off the alarm with out the guage being effected?
Mike