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  1. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    I thought the same. In the videos online, it seems like the mechanics are doing this in an hour or two. He said it is in a particularly bad spot in my engine compartment. I know I am supposed to have this done as regular maintenance, but that's a steep price to pay every time you get an...
  2. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    Thanks everyone for your help on this. I'll let you know if fixing the impeller resolved the alarm issue once I have boated with it a few times.
  3. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    So it turns out that my impeller was in really bad shape (totally falling apart.) The mechanic replaced the entire housing because it had caused some scoring, etc and caused other damage. Because of the location of the impeller, it took him 5.5 hours. It was a small fortune. Anyway, I didn't...
  4. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    Hmm. My mechanic said his device cost $6000. I did see this online, but it looks like you might need to buy the software for your specific engine...
  5. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    Thanks everyone for their response. I don't think this would IAC because it only beeps once (constant alarm), but you never know. I am waiting to hear back from the mechanic. Unfortunately, anytime you take to a mechanic here (Lake Gaston, NC), it is usually at least a two week wait. Water...
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    Alarm Going Off for Mercruiser 350 Mag MPI

    I had an iac fail on my last boat, and that was always issues at startup. The boat always starts fine here. Could this be IAC even though the issues usually only occur while underway?
  7. R

    Alarm Going Off for Mercruiser 350 Mag MPI

    Boat: 2015 Regal 2100 - weighs about 4,000 pds Bravo III Sterndrive 350 MAG MPI I have an odd thing happening with my boat. About once every time out, my one beep constant alarm goes off. I stop the engine and restart and the alarm doesn't go off again. I have had this happen a dozen times now...
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