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  1. #16
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    Steady beep will put it in safe mode (gaurdian) and limit the RPM to about 2500. If it's not doing that, then there might be a wiring problem somewhere.
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  2. #17
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    Steady horn might mean oil pump failure also?

    83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
    We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
    Rebuild thread:
    http://www.screamandfly.com/showthre...-it&highlight=
    http://www.screamandfly.com/showthre...cs.&highlight=
    Videos

  3. #18
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    May 2001
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    Force compressed air in the pee hole to clear the passage, you can also hook a temp gauge to the tan wire on the compressor to verify it is not the culprit

  4. #19
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    I replaced both temp sensors in block and it went away. Also replaced all impeller parts

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  6. #20
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    I had almost the exact same problem with my 2010 Sport XS 225 and if memory was correct it was a weak coil. The motor was under warranty at the time and Mercury changed all 6. I will see if i can find the paperwork and post EXACTLY what they changed... The alarm would come on at will and turn it on/off and it would reset.

  7. #21
    Join Date
    Feb 2006
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    Formerly Central WI/LOTO Currently PHX AZ
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    Quote Originally Posted by trex View Post
    Not in safe mode. Smart craft reads 125+\-
    Quote Originally Posted by trex View Post
    I replaced both temp sensors in block and it went away. Also replaced all impeller parts
    Looks like your port coolant temp was out of range (hi/lo). The SmartCraft info displayed is the starboard sensor, but the PCM looks at both sensors for overheat. So, if you weren't going into EngineGuardian, it was most likely that the temp sensor itself lost connection internally/externally, or the connection at the harness was suspect, and when you removed and replaced you re-established connection.

    If you haven't erased faults with a diagnostic tool, the Freeze Frame faults will still be there, and it will say what was causing the horn. Either way, if it was a bad sensor and you replaced it, or an intermittent coil fault, it would be in the Freeze Frame Buffer. There will also be a run time associated with each fault, so you can see how long ago the fault happened based on current run time. This can also be helpful in diagnosing faults. If you have someone clear the faults for you now, anything new in there will be the only thing that shows, for easier diagnosis.

    Glad you got it fixed, hope it stays that way!
    A problem is only a problem when viewed as a problem...

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  9. #22
    Join Date
    Nov 2004
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    LEBANON OREGON
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    a shorted sensor will read high or low and not show on smartcraft, and set an alarm seen it on mine.. 90 degree block would send sensor to 170 and alarm, really easy to find with CDS diagnostics

    4-16-2014. 25 years old today... the fishin boat doesnt look to bad for a classic does she


    things that were are no longer as they are today...

  10. #23
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    Ur alternator may have fault im on the same mission right now i let off and steady beep goes away i look at temp water pressure all good but my voltage is lowat 11amp then when i let off and get back on throttle volts go back to 13amp check there

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