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  1. #1
    Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    387

    new 150 4stroke will not run past 2500 rpm

    My new 150 4 stroke 2B467082 will not run above 2500 rpms. After that it cuts out and surges. Will hardly get my 18 ft. Ranger on plane. Runs perfectly at lower RPMs
    Reading in the owners manual sounds as if it may be in Guardian mode.
    Last edited by lperry; 01-08-2018 at 07:01 AM.

  2. Member
    Join Date
    Nov 2016
    Location
    Birmingham AL (Pelham)
    Posts
    1,507
    #2
    Under warranty == back to dealer.
    2008 Bass Cat Pantera Classic
    2014 Mercury Pro XS 200

  3. Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    387
    #3
    Yes thats why I bought extended warranty!!

  4. Banned
    Join Date
    Nov 2012
    Location
    Muscle Shoals, Alabama-Wilson Lake
    Posts
    10,043
    #4
    Sounds as if it is being thrown into a fail safe mode. Return it to the dealer is while they have time to deal with it.

  5. #5
    Tilt trim module

  6. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    94,945
    #6
    Over-trimmed, trim sensor or wiring problem (or any number of other problems).

    WARNING HORN "BEEPED"


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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  7. Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    387
    #7
    Yes rim sensor bad. Dealer has one ordered along with new tilt trim unit. Update: trim sensor and trim unit replaced and all is well!
    Last edited by lperry; 01-28-2018 at 03:15 PM.