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Water temp buzzer/light going off on cool engine

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Cseal, Jun 9, 2011.

  1. Jun 9, 2011 #1
    Cseal

    Cseal Bobtail Member

    12
    2
    Oct 31, 2010
    tennessee
    0
    The water temp light and buzzer is going off on my 2003 fld 120 erratically. It does it off and on all day long but its never like its on full strength, just a weak light and almost inaudible buzzer. The water temp is never even close to high when it happens. Any ideas?
     
    Cseal, Jun 9, 2011
    Cseal, Jun 9, 2011
    #1
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  3. Jun 9, 2011 #2
    canuck in da truck

    canuck in da truck Road Train Member

    4,352
    2,601
    Aug 6, 2010
    western pa
    0
    smack the dash a good one--see if it stops
     
    canuck in da truck, Jun 9, 2011
    canuck in da truck, Jun 9, 2011
    #2
  4. Jun 10, 2011 #3
    brenes-built

    brenes-built Light Load Member

    157
    15
    Apr 14, 2011
    Vancouver, Wa
    0
    What engine is it??? I had the same issue and it was the sending unit on the thermostat housing.... I have a e-model cat, theres two on mine, one for the buzzer and the other for the gauge...good luck
     
    brenes-built, Jun 10, 2011
    brenes-built, Jun 10, 2011
    #3
  5. Jun 10, 2011 #4
    heavyhaulerss

    heavyhaulerss Road Train Member

    3,723
    2,040
    Dec 23, 2009
    AL/TN BORDER
    0
    lose battery connections anywhere can cause this.
     
    heavyhaulerss, Jun 10, 2011
    heavyhaulerss, Jun 10, 2011
    #4
  7. Jun 10, 2011 #5
    Cseal

    Cseal Bobtail Member

    12
    2
    Oct 31, 2010
    tennessee
    0
    Sorry its a 6ts 550 cat. I guess I should have thrown that into the question.
     
    Cseal, Jun 10, 2011
    Cseal, Jun 10, 2011
    #5
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