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Recent content by seaway11

  1. S

    Alarm buzzer

    Mercruiser 7.4 MPI. I'd like to test the engine temp alarm buzzer circuit. The buzzer sounds when I turn the key on for about 2 seconds. The sender was recently replaced. There are 2 wires. a yellow and a black. I tried grounding each wire with the key on. I tried heating the sender with the...
  2. S

    Alarm buzzer

    Mercruiser 7.4 mpi S.N. 0L655251. My ECM is a MEFI 3.(DELPHI 16237009). My problem is audio buzzer sounds just after engine start, 1 second on and 3 seconds off coutinuous . I replaced coolant sensor and checked the wires. I replaced drive lube tank and checked the wires. I grounded and...
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