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  1. K

    4.3 Mercruiser MPI Chugging/Surging and Beeping during turns/Waves

    I will get serial # as soon as I get home. I reached out because I have no clue- I did not know that was even a thing.
  2. K

    4.3 Mercruiser MPI Chugging/Surging and Beeping during turns/Waves

    They said it was not spitting a code. It just now started with the beeping, it did not do that before. We will take it out and try to wiggle things around. The 5 shops all replaced something regarding fuel. Lines, Pump, Filter, Gas, etc. One of them replaced an 02 sensor.
  3. K

    4.3 Mercruiser MPI Chugging/Surging and Beeping during turns/Waves

    Every time we turn/hit a wave the boat chugs/surges and loses power. It can get up to 50mph on a straight away, but the instant we take a turn or hit a wave and put it under load it sputters/surges and beeps. We have had it in over 5 marine shops, been told it was fixed multiple times but nobody...
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