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  1. D

    2015 merCruiser 3.0 MPI hard to start

    OK, thank you but cables. Look in excellent condition so I would just go with a new battery.
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    2015 merCruiser 3.0 MPI hard to start

    OK, I think that’s the problem since you say low-voltage can cause different problems especially the fact that it cranked up right away so I will just get me a new battery and I guess that should be it for me. Thanks again for all the help I received from you guys. Have a great day.
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    2015 merCruiser 3.0 MPI hard to start

    OK, I got this thing started. I don’t know if it was the module or not. I’m starting to lean towards the battery because when I put my charger on it and turned it to 600 cranking amps the crank sounded much different and it fired up right away, so I don’t know if all this time the battery was...
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    2015 merCruiser 3.0 MPI hard to start

    OK, so either I got a bad ECM or bad distributor or defective module or possibly some type of damaged wiring because I changed the ignition module already is that about right?
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    2015 merCruiser 3.0 MPI hard to start

    OK, I will check that out. Also forgot to ask you if I do have the 12 V does that mean the coil is bad or is there a way to check to see if voltage is coming out of the coil?
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    2015 merCruiser 3.0 MPI hard to start

    OK and I should have 12 V at the coil correct if not where where do I proceed from there? Thank you.
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    2015 merCruiser 3.0 MPI hard to start

    OK, well I found the D1943A ignition module. I installed it this afternoon, but still not working no spark I don’t understand what happened originally the boat was running fine. It was just very very hard to start at first now I get nothing. I actually ran the battery down trying to crank this...
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    2015 merCruiser 3.0 MPI hard to start

    Ok Thanks
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    2015 merCruiser 3.0 MPI hard to start

    OK, I called the dealership in my area and they did not have any of those part numbers listed. They gave me a part number of 19435461. Do you think that might be the same? Also, is it possible to know what car engines these go on so at least maybe I can tell them I need it for that model to make...
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you very much, sir. Have a great day. I will let you know how this thing comes out.
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you when I’m trying to purchase this part from the dealer. What engine do I reference when I tell them I need the part or do I just tell them I have a Mercruiser marine engine
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    2015 merCruiser 3.0 MPI hard to start

    hello OK I got a chance to connect a spark detector to spark plug wire number one and I cranked it over and now I’m not Getting any spark at all and engine will not start so apparently I had some kind of intermittent problem. Do you recommend replacing the ignition module first or the coil...
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you maybe it is a weak spark because I know it’s getting some spark because it does start eventually I have a spark tester. I will check it out later and let you know. Thanks again for your time.
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you is there anything else you can recommend because I tried to start it up this morning and literally had to crank five or six times stop and then five or six times more before it started is there a certain starting procedure when starting fuel injected marine engines I bought this...
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    2015 merCruiser 3.0 MPI hard to start

    Good morning I just wanted to ask you because I just noticed I do hear one beep when I turned the ignition key to the start position. Does that mean there is a problem with something?
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you very much
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    2015 merCruiser 3.0 MPI hard to start

    I have a question I hooked up a pressure gauge to the fuel rail and I had 40 psi of pressure after I ran the engine and turned it off. I had a rest pressure of about 39 psi which held for over 30 minutes, but when I went out the next day, the rest pressure was down to 10 psi does this mean the...
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    2015 merCruiser 3.0 MPI hard to start

    Not really replacing them just to replace them some things do we’re out overtime boat is 10 years old but anyway that’s why I’m consulting you thanks
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    2015 merCruiser 3.0 MPI hard to start

    OK, I see that item 5. Should I just replace that for kicks and grins being that it’s only $20 and can I purchase that from you?
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    2015 merCruiser 3.0 MPI hard to start

    OK, thank you I will check into that fuel pressure seems to be OK at 40 psi and a rest pressure of 39 psi which has held for about 30 minutes so far
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