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  1. #1
    SHOJOE's Avatar
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    Over Heating, 2009 FX/SHO

    Hello All and thanks for reading,

    Not sure where to look? Just had a new prop and wearing installed. First time out and in 5 mins the engine is overheating.
    I have what seems to be good flow of water coming out of the ports on either side. She will idle without overheating but once you start to go, a couple of minutes later it goes in to limp mode and the overheat alarm comes on. All suggestions welcome and thanks in advance. PS> when I took the seat off to flush, a bunch of black smoke came out, what could have burned up if anything?


  2. #2

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    You should check the thermostat operation it’s pretty easy to access and check

  3. #3

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    If there's good flow coming out the side ports, that means the overheating alarm is probably coming from the exhaust temp sensor from water not going through the sprayer there. I'd recommend checking for burnt hoses and plastic components before and after the waterbox - i.e. basically start at the exhaust manifold and work your way out to the back from there.

  4. #4

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    $70 gets you yds 1.33 and exactly which sensor threw the alarm my guess is faulty sensor I had it happen on mine even though it tested in spec replaced and all good.

  5. #5
    SHOJOE's Avatar
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    Thanks for the suggestions as to where to start. Looks like my weekend will be spent trying to figure out the issue.

  6. #6

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  7. #7
    SHOJOE's Avatar
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    Found the issue, clogged passage way on the exhaust.
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  8. #8

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    Looks like the blockage may have been around the temp sensor

    worth checking sensor while it’s apart.

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