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Another EMF Question in Gen 3 - Please Help!!!

Discussion in 'Gen 3 Prius Main Forum' started by princetonprius1, Sep 27, 2010.

  1. princetonprius1

    princetonprius1 New Member

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    I purchased a gen 3 Prius a week ago and did a 4 hour drive from
    Boston to NY that very first day. I do not know what exactly was going on, but about 30 minutes into the trip, my right leg started to have this strange sensation. I have trouble find the appropriate description, but numbeness/heaviness is probably the closest I can come to. It's almost like a dull, pressure-like sensation that's emanating from deep inside the leg although that's not quite it either, but it is definitely not a comfortable feeling. I cannot figure out a rational reason as to why only the right leg was affected other than for the possibility that a good portion of the EMF is coming from the midline axis of the car so that the right leg is absorbing all the EMF, hence sparing/block it from the left.

    The affected portion was from the knee down to the toes, and just happened to coincide with the area(driver's footwell) where just about everyone agree is registering the highest EMF readings.

    Again, as my left leg felt fine, after a while I experimented actually driving with the left foot. Unfortunately, I wasn't able to conclude anything as the position was very awkward(and dangerous) so I had to resume the normal driving position soon after.

    On the diagram of the hybrid battery and electric motor in the manual, it appeared as if the battery is in the rear right, and the motor in the left section of the engine bay, with the cable connecting the two in a diagonal path. It would then actually make sense that the cable may travel between the driver and front passenger in that hump that is in the Gen 3.

    Interestingly, I came upon a post of someone reporting leg pain in his Prius with the Hymotion battery addition. I haven't had a chance to read that post yet.

    I drove it again the next day, and it kind of seemed like I was getting that strange sensation again although I cannot say for sure. I suppose that the ergonomics of the car may play a role(as someone had suggested), but then I have driven many different cars over the years, and have never experienced this issue before. Furthermore, if it is ergonomics-related, both legs should be affected, not just one.

    The other possibility I was considering is possibly the construct of the accelerator pedal. With the drive-by-wire design, it may provide a different feel to the leg/foot, but then the car I was driving previously right up until Sunday was an Acura TSX, and that also has a drive-by-wire design.

    I did some research online and came upon EHS(electromagnetic hypersensitivity syndrome). I am wondering if I may actually be one of those persons who have EHS, but once again, what I could not figure out was why only the right leg was affected, unless the exposure in the footwell(especially on the right leg) was so great that it made me be less aware of my sensitivity to the rest of my body

    I would be very interested in hearing your thoughts on this. I had
    finally decided to purchase the Prius after giving much thought about
    the issue and was somewhat reassured especially after hearing about
    the recent study in Israel where they found that the Gen 3 emitted
    very low levels compared to the other hybrids. Consumer Reports also recently published their study with similar results. For some strange
    reason, I have not been able to find the actual Israeli study on the internet even after reaching the actual Israel Environmental Protection Ministry website, so everything I have been reading about this was all second hand information. Now, after having experienced this bizarre, and scary strange leg sensation, I really don't know what to make of all this. The only options I can think of at this point are to shield or sell the car.

    Any thoughts on this would be greatly appreciated.
     
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  2. Judgeless

    Judgeless Senior Member

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    There seems to be way too many people in these forums that post the oddest things. Many try to make the Prius out as a horrible car full of issues.

    This person drove 4 miles and had an issue with their leg. I have a 2010 Prius with close to 40,000 miles and zero issues with my leg. There are many Prius owners with out any issues. I predict you have a medical issues outside of the Prius. I suggest you see a doctor before blaming all your issues on the Prius.
     
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  3. Blizzard10

    Blizzard10 New Member

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    Good Grief!
     
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  4. Tech_Guy

    Tech_Guy Class Clown

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    Many years ago I injured my lower back lifting a heavy object. With a compressed disk in my lower back, I sometimes have a difficult time sitting for long periods of time with dull pain in my rear end sometimes radiating down to my left foot. Consequently, I am fully aware that small changes in seating position can radically affect comfort, especially in an automobile.

    Try moving your seat forward or back and/or change the seat back angle. Small changes in seating position will affect the blood circulation in your lower body.

    I seriously doubt that there is an EMF issue.

    Good luck,

    Keith
     
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  5. richard schumacher

    richard schumacher shortbus driver

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    Sciatica. Try wearing your wallet in a front pocket.
     
  6. macman408

    macman408 Electron Guidance Counselor

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    You're exposed to far greater EM fields from many other sources. This is a case of the great unknown causing fear, simply because it's different. Others have made great suggestions; a wallet, the way you're sitting, the adjustment of your seat... Keep in mind that you are not perfectly symmetrical, nor is your manner of sitting, especially while operating the pedals, so there's no reason that ergonomics must (or is even necessarily likely) to cause pain on both sides.

    One of the interesting things that has happened in many cases of supposed EHS is that the individual is often proven to not be sensitive to the fields themselves, but rather the idea of the fields; such as the lady who claimed to have been unable to sleep for weeks after a new cell tower was installed - only to have it revealed that the cell tower had actually been powered down for the whole time since her initial complaint.

    That said, it's not much help to tell somebody in that position that it's all in their head; it doesn't matter to her whether she can't fall asleep due to the EM fields, or due to the idea that the EM fields might affect her.

    In any case, try a few things like a cushion, or different pants, or different posture while driving, or lining the passenger cabin with tinfoil. If nothing else works, it doesn't really matter whether it's EM or ergonomics, does it? If you're uncomfortable beyond your tolerance when you drive, then your best option might be to sell the car.
     
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  7. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Sorry to hear this:
    There are multiple sources of such symptoms. For example, blood constriction needing a seat adjustment or even a seat change or using cruise control and shifting your weight in the seat from time-to-time. But this assumes a physiological cause which has been reported in the past.
    By all means, get tested. I suspect there many fine folks who for a modest fee will calibrate your EHS scale. But this will be done in a lab within a Faraday cage. EMF/EMI sensitivity won't be limited to just one car and more than a few gas-only cars have higher levels.
    Sell the car.

    We've seen reports of folks who tried seat cushions and after market seats to solve a fit problem with the car. But they often spent a lot of money for marginal results. If you want a hybrid car, look at the Ford Fusion or Camry hybrid that both have excellent reputations. Although too small for us, the Honda Insight is a another option.

    Don't rule out 'handling' as some folks prefer an 'impulse' ride . . . a car with strong responses to steering, accelerator and brake inputs. I can't explain it but they really prefer a different suspension tuning, steering ratio and layout . . . and noise.

    One suggestion, rent the potential replacement cars and repeat the 4 hour trip. I know Camry can be rented and suspect the Ford Fusion may also be available as a gas rental, not hybrid. Use rental to find a car that fits and then do the best deal you can with the Prius.

    Understand your problem with the Prius is not a problem I nor many folks in a Prius community share. We tend to 'self-select' and those who choose a different ride wander off to other places. We are social to the extent we share a fondness for our Prius ride.

    I've found the Prius low vibration and quiet comfortable. Using cruise control, I can drive 14-24 hours, 750-1,000 miles, and arrive not feeling 'beat up.' But then I tend to drive the speed limit and use trucks as pacing vehicles. After the first three to four hour segments, I tend to drive in two to three hour legs and get out for a bathroom, walk around, and beverage break. But I've also ridden with folks who prefer a different style.

    Many years ago, I used to commute to Huntsville with a co-worker:

    • 12 hour and 30 minute trip
    • 1 break for 30 minutes in middle
    • speed +85 mph on 75 mph posted Interstate
    • only he would drive his 'pony' car
    I typically did the same 750 mile trip in 14 hours with at least three breaks and well identified refueling stops to get the cheapest gas. Depending upon weather, I would switch from the interstate to state road to avoid rain or snow.

    Seriously, do some 'due diligence' and find a car that meets your expectations and fit and sell the Prius. It is a lot easier than trying to keep a vehicle that for whatever reason doesn't make you happy.

    Bob Wilson
     
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  8. timo27

    timo27 Member

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    My guess would be, in this order, a low-back issue (such as sciatica) compressing a nerve, or, less likely but potentially more serious, the beginnings of a deep-vein thrombosis (DVT). You have a II - I specifically upgraded to the IV for the seats for my back issues, and honestly I find the seats in a II or III like sitting in a wheelbarrow (sorry, II and III owners, just my opinion) and it is bad for the back.

    Regarding the DVT issues, do you have any history of this in your family? Did you make the whole trip without any stops, and if so, did it get worse? Did it feel like your leg 'went asleep' from lack of blood flow? How, if I may ask, old are you?

    My Dad had a DVT and it damn near killed him. Basically, it is a long blood clot that forms in the deep vein in the calf of the leg, can grow up above the knee, and if so can break off and cause a pulmonary embolism, which can kill you faster than you can say 'EMF'. I'd advise getting it checked out w/ a doc asap. It is far more likely to take you out than EMF, if the latter even is an issue.

    Good luck, and keep us posted. Also, get out of the car every half hour or hour or so and walk around, even for just a few minutes.

    ~T
     
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  9. Paul58

    Paul58 Mileage Miser

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    How many pins do you have in your right leg? Do you attract small metal objects like paper clips as you walk through office buildings?

    On a more serious note...

    I get a pain in my knee when I drive my Fit for long distances, but it's because the seat does not go back far enough and my leg sits cocked to the right when my foot is on the accelerator. The Prius has considerably more leg room and my leg sits straighter while driving. I find it much more comfortable while driving long distances.

    As others have pointed out, have you tried taking your wallet out of your back pocket while driving? I do, and it make the seat much more comfortable. You don't mention what you previously drove, but maybe the seats had softer cushioning (or were just wider) and did not apply pressure to the bulk of the wallet. The specific, focused pressure applied by your weight on the wallet as you sit my be restricting blood flow to your leg, or may be applying pressure to a nerve that runs to your lower leg. Either could result in symptoms similar to what you are describing... I would explore these possibilities before self-diagnosing yourself with some rare exotic syndrome...
     
  10. robbyr2

    robbyr2 New Member

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    :tinfoil3:= the safe way to drive a Prius.:rolleyes:
     
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  11. mainemanx

    mainemanx Member

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    Boston to New York? Curse of the Bambino?
     
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  12. teeasal

    teeasal New Member

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    What does EMF stand for? Is it Extreme Methanol Farts?
     
  13. qbee42

    qbee42 My other car is a boat

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    Electromagnetic field.

    As for the OP: It may be the car, but it's not EMF.

    Tom
     
  14. princetonprius1

    princetonprius1 New Member

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    Thanks for the the replies. I would like to note that a) I clearly stated it was a 4 hour drive, not 4 minutes, b) I have always placed my wallet in my front pocket for the past 20 years, and c) I did mention what I used to drive previously, an Acura TSX.

    I do have a science/medical background by training so I am not one of those foil hat-wearing loonies that some of you have made me out to be. It was through due diligence after much research and reasoning that I ended up going with the Prius. However, this odd sensation on my right leg is definitely a new and unusual thing that has never happened before, and I was just curious/concerned that it may have to do with the EMF phenomenon.

    I read through the Hymotion/Leg pain post last night. The author stated that there happened to be a loose screw on the ground wire. After it was tightened by the Hymotion technician, the pain resolved. Sure, it could have been a typical musculoskeletal/sciatica pain, but the coincidence here should not be written off so quickly. And the author sounded like a rational being. After all, he is a hybrid owner.
     
  15. princetonprius1

    princetonprius1 New Member

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    Here is some food for thought for people who are so quick to write off the EMF issue as quickly as the people who are frightened by it: many animal species clearly can detect EMF(the earth's magnetic field) and use it to navigate their way around the world. This is clearly a proven phenomenon. Maybe we have the ability/perception of it too but just never have developed or realized it to the extent they have.
     
  16. Judgeless

    Judgeless Senior Member

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    princetonprius1 your agenda is clear. Bash the Prius. Your first post on Prius Chat is how your leg hurt after a short trip in the Prius. Now you are lecturing on why EMF is bad with your 3rd post.

    Take your “I hate the Prius views elsewhereâ€
     
  17. Joe166

    Joe166 New Member

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    The double thickness foil hat, in conjunction with a heavy duty paper clip grounding device will work every time! I guarantee it! When it works, you can send the money to me in Nigeria. Thanks.
     
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  18. The Electric Me

    The Electric Me Go Speed Go!

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    Uh, to the OP.

    You are driving a new car, less than a week old.

    You are experiencing a sensation in your leg after sitting in a new vehicle seat for X period of time.

    Why are you seemingly defaulting to the idea that this has anything to do with EMF? It seems much more likely that it simply a LCI...or a Leg Circulation Issue.

    Try adjusting your seat, or a cushion or simply getting out and stretching before worrying about EMF or shielding your vehicle.
     
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  19. bisco

    bisco cookie crumbler

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    :eek: exactly!!!
     
  20. bisco

    bisco cookie crumbler

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    a small percent of people will be overly sensitive to many things in this world. i read that flourescent lighting can give some people ms like symptoms. i would sell the car. if you want to drive it back to boston, i would be interested.:)
     
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