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Another New Groan

Discussion in '2nd Gen. Tacomas (2005-2015)' started by mb09, Nov 8, 2011.

  1. Nov 8, 2011 at 6:44 AM

    mb09 [OP] Member

    May 19, 2009
    '07 CC LB
    2007 dc lb

    I have noticed that I have a low frequency groan on start-up in the morning that seems to disappear as the vehicle warms. Thought maybe it was a cracked exhaust manifold or other exhaust part but haven't been able to find it. Other thought was maybe a broken motor mount but haven't seen any cracks in the frame mounts and haven't beaten the truck that hard. Anyone who has experience a broken mount, can you discribe the symptom?

    Sound changes with throttle application - increasing in volume/frequency with throttle. once the truck warms a bit it seems to go away - bit is not coming from the engine.

    This just goes along with the abs noise on the first roll out of my driveway -a low vvroom from the abs pump that last only a second.

    Any thoughts?
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