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Cat 3406e Problem

Discussion in 'Technical Discussion' started by jlresq, Nov 23, 2017.

  1. jlresq

    jlresq New Member

    Joined:
    Oct 25, 2017
    Messages:
    34
    I just took delivery of a boat with a pair of 3406e Cats, vintage 2001. On the delivery, one engine kept throwing an over speed number 2 sensor fault bearing Code 273. There was no noticible engine drop in performance. The fault came up sporadically, sometimes once every 10 minutes and then again two hours later. The prior owner said he replaced the overspeed number two sensor. I do not know where to start. Do I now replace both the overspeed number one sensor and the turbo boost pressure sensor? Sorry for the questions but these are my first Cats. Thanks.
  2. Capt J

    Capt J Senior Member

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    Jul 11, 2005
    Messages:
    9,798
    Location:
    Fort Lauderdale
    You start by plugging in the CAT computer and seeing where you're getting the fault from.
  3. jlresq

    jlresq New Member

    Joined:
    Oct 25, 2017
    Messages:
    34
    I imagine that is not a diy project. Need a CAT guy? If so, any recommendations on Long Island. H.O. Penn seems to be the only game in town?

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