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Roadster shaking

Discussion in 'Roadster: Technical' started by Gwenn, Nov 26, 2013.

  1. Gwenn

    Gwenn Member

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    À few times i had my roadster shaking the feeling of à flat tire.

    what happens i'm driving and suddenly my car starts shaking from the back same feeling as à flat tier but i don't have one.
    The car still goth all the power.

    when i stop the car and start driving again the shaking is gone.

    does anyone now where this can come from? Engine problem or so?? Any ideas ?
     
  2. Doug_G

    Doug_G Lead Moderator

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    Definitely not an engine problem - you don't have one. If your motor was out of balance it would probably fail catastrophically.

    I would have the suspension inspected, to make sure something didn't break or come loose. I would do this ASAP.
     
  3. 7racer

    7racer Member

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    did you happen to stop quickly and flat spot your tires?
     
  4. djp

    djp Roadster 2.0 VIN939

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    Check the rear shroud on your undercarriage. I had a couple of bolts fall out of mine, which I noticed when the car started shaking as the shroud flapped around while driving.
     
  5. dhrivnak

    dhrivnak Active Member

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    Did by chance you see the traction control light come on in the dash. If accelerating or slowing rapidly the traction control can come on and off causing something akin to shaking.
     
  6. bareyb

    bareyb Active Member

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    Rain Grooves? I"ve felt some shaking from my back end on those…
     
  7. jory

    jory Member

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    sounded like traction control to me too.
     
  8. wiztecy

    wiztecy Active Member

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    >À few times i had my roadster shaking the feeling of à flat tire.
    >what happens i'm driving and suddenly my car starts shaking from the back same feeling as à flat tier but i don't have one.
    >when i stop the car and start driving again the shaking is gone.

    If it happens a few times, stops once you stop and doesn't not restart its a very inconsistent problem So either something is out of balance that settles back down and falls into balance once you stop, or something in the system is interacting with the drive system causing the unbalance. I was going to say check you're rear wheel balancing, but if the issue does not occur again when you stop and bring the car back up to speed that's not the issue. How many miles do you have on the Roadster? I have a feeling its most likely with the drivetrain: Rear Axles/CV joints, transmission, and as Doug mentioned possibly the motor/bearings.

    I don't like vibration, especially in EVs since the motor is very temperamental and life depends on being properly balanced. Vibrations that work their way to the motor and will kill it in no time which starts first with the bearings pre-maturely wearing out due to the stress.

    Also check your easy things mentioned such as the rear shroud bolts or if the TC light is on/flashing while it occurs.
     
  9. ModelS1079

    ModelS1079 Member

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    The camber in the rear tires is rather extreme to optimize traction and accelerate o. Take off. Wears tires fast. Suggest inspection and be sure tires are okay. I had a similar experience in my Model S and found quite to my surprise that the belts were exposed at inner edge of true. Replaced and smooooth driving again. Maybe too obvious to be the cause t his pint, thought worth mentioning.


    - - - Updated - - -

    Yes and also be sure you are in your Roadster. My Tesla was driving very poorly recently, really bumpy ride, poor handling, and the acceleration was miserable. Thought it might be tires, my inverter, or traction control, and then I realized I was in my wife's car. Which, for a Toyota , drives okay.
     
  10. hcsharp

    hcsharp Active Member

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    Torque your lug bolts.
     
  11. vfx

    vfx Well-Known Member

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    This was my thought too.
     

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