Symptoms of Bad Motor Mounts?

Discussion in 'General Motoring' started by Box134, Jul 22, 2005.

  1. Box134

    Box134 Guest

    Last time I was at Saturn they said one of the motor mounts was just within
    spec and would need attention eventually. I left it for another day. But I
    was wondering, what do you see, feel, or hear when motor mount replacement
    is necessary?

    I have noticed recently while idling in neutral that the motor was running
    rough. When I paid close attention I realized the motor was running fine,
    but engine vibration seemed increased. Is this what happens, more shaking is
    transferred into the frame when the mounts fail? Seems to make sense to me,
    but what do I know!
    Box134, Jul 22, 2005
  2. Box134

    blah blah Guest

    That is a symptom. If you are talking about an S-series? the upper
    torsion mount can be checked by using your index finger as a gage. The
    bracket is like an upside down U. If you can stick your finger through
    the upper center part of the U then the mount should be good. If its
    completely collapsed you cant stick you finger in there. Another method
    (for all makes and models) is to have someone put the car in gear, hold
    the brake, and you visually watch the engine as its given a little gas
    and let off. You would then monitor how much movement the engine makes.

    A tune up could solve a rough idle as well if thats what it needs.
    blah blah, Jul 23, 2005
  3. Box134

    Ratbert Guest

    Yep, that's it. It will seem very smooth once you replace the mount.
    Ratbert, Jul 23, 2005
  4. Box134

    B. Peg Guest

    Mine got bad enough that when I made right-hand turns it made a clicking
    noise. Thought the CV joints were going and were changed to no avail, but it
    ended up being the upper mount.

    B. Peg, Jul 23, 2005
  5. Box134

    Art Guest

    On a different brand car I thought the motor mounts were going but the
    dealer said it was the rear auto transmission mount. He turned out to be
    Art, Jul 23, 2005
  6. Box134

    Box134 Guest

    Thanks to all who replied, blah2, Rathbert, Peg, and Art. Careless of me, it
    is a 96SL2.

    I think the mount is about a $100 item. Guess I'll have it done soon.
    Box134, Jul 24, 2005
  7. Box134

    Bob Shuman Guest

    The Torque Axis Mount was about $65 or so as I recall for the part at the
    dealer ... it took about 15 minutes to install if you have a jack and some
    tools. I have no idea what the dealer or a garage would charge, but suspect
    it would be more than $100 total.

    There are other lower motor mounts, but they rarely go bad. If it is one of
    them, then the cost will be much higher.

    Bob Shuman, Jul 24, 2005
  8. I went through 2 or 3 (can't remember) and the bill was closer to $200
    at the dealer. The first replacement on my 97 required a stud kit
    (Saturn bounced back and forth on the kit - yours may not require one).
    I also had the dogbone mounts replaced with stiffer aftermarkets which
    translated lots more engine vibration but but less stress on the TAM.
    Jonnie Santos, Jul 24, 2005
  9. $35 at Advance Auto.
    Kevin M. Keller, Jul 26, 2005
  10. Box134

    shoppa Guest

    There are other lower motor mounts, but they
    While I agree that the lower mounts last a lot longer than the upper
    mounts, I disagree because I've found they don't cost a lot. I
    replaced the lower dogbone mount and it was only $30 from the dealer,
    way less than the upper mount.

    shoppa, Jul 26, 2005
  11. Box134

    Bob Shuman Guest

    Explanation: I assumed they were having work done *versus doing it
    themselves). Cost was of the labor since replacement is much more involved
    and will take longer - there fore cost more. Part itself is likely around
    the same cost as the TAM.
    Bob Shuman, Jul 27, 2005
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