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  1. #1

    Default Engine wont start!!!!!

    i was recently taking my boat out and we snapped a belt for the alternator. I fixed the belts and got it started again. went to take it out the next weekend, the boat wont start. i changed the battery. still wont start. i changed the starter and still wont start. all you hear is a TINK when you turn the key and a TINK when you turn it back. starter has power. i dont know what else to check.

  2. #2

    Default Re: Engine wont start!!!!!

    Its a 08 Mercruiser 3.0L I/O engine in a tahoe

  3. #3
    Join Date
    Sep 2010
    Posts
    18,152

    Default Re: Engine wont start!!!!!

    Will the alternator turn ?

  4. #4
    Join Date
    Jun 2006
    Location
    Spotswood, NJ, USA
    Posts
    4,904

    Default Re: Engine wont start!!!!!

    snapping that belt can lead to an overheat, did you overheat?
    Hearing a soft click is the slave solenoid, hearing a hard clunk is hydro-lock
    Remove the spark plugs and try to spin the motor.
    If salt or brackish you have 24 hours to get it dried and running

  5. #5

    Default Re: Engine wont start!!!!!

    Alternator turns it’s a very faint click

  6. #6
    Join Date
    Jun 2006
    Location
    Spotswood, NJ, USA
    Posts
    4,904

    Default Re: Engine wont start!!!!!

    Go to the starter and jump the yellow/red to the main battery post , motor must turn.
    Yes= battery and connections are good, No= battery or connections are bad
    Locate the slave solenoid,if it only clicks, jump the 2 large lugs,starter must spin.
    Yes= replace slave, No = go to starter check fuse (if equipped) Check for 12v at the Red/Purple wire
    Remove the spark plugs and try to spin the motor.
    If salt or brackish you have 24 hours to get it dried and running

  7. #7

    Default Re: Engine wont start!!!!!

    i jumped the starter from the battery and it worked. i could not find the slave solenoid. any idea where it is on the engine. i tried tracing the yellow/red wire but i keep losing it.

  8. #8
    Join Date
    Nov 2008
    Location
    Calgary, AB,
    Posts
    47

    Default Re: Engine wont start!!!!!

    The slave solenoid should be mounted to the shifter bracket on the block side. Real PITA to get at. Look down between the block and the shifter bracket and you should be able to see it.
    Last edited by izdbye; 11-13-2019 at 11:31 PM.

  9. #9

    Default Re: Engine wont start!!!!!

    ok im going to find it this weekend and get back to you. Thank you.

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