Difference in left/right side windows?
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This is a discussion on Difference in left/right side windows? within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; I've noticed that the right and left side windows on my car roll up at different speeds. The left (drivers) ...

  1. #1
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    Difference in left/right side windows?

    I've noticed that the right and left side windows on my car roll up at different speeds. The left (drivers) side rolls up quicker than the left side. It is the same result for both the front and rear windows.

    Anyone else have this or am I the only one with the weird windows? let me know...I find this to be really weird!
    Rubber Duckies Fair Well in the Rain

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  3. #2
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    So I guess Im the only one. Is this something I should worry about and have a dealer take a look at. Its only off by a little bit but its obvious when you roll up both sides at the same time that the left is slower.

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  4. #3
    Registered User satrya's Avatar
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    I'm not sure how slower one side is compared to the other in your car. In any case, since the motors probably don't run with a high-performance velocity loop (or any closed loop control for that matter), I would say that it's probably expected, unless the difference in speed is very obvious, say, twice the other.
    I haven't paid much attention on mine, but it seems that they're not off by more than 5%.

  5. #4
    Registered User jmussetter's Avatar
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    I don't know if mine do it but heres my guess why...

    I bet that since: the switches from both sides is on the drivers side, which means that, that window is closer to the switches. When you roll both sides up at the same time, I bet that the driver's side is actually getting a *little* more juice than the far side which causes it's motor to spin *slightly* faster...since electricity follows the shortest path.

    Also, they are tied to the same power source, because in most cars, if you are rolling up both windows and let go of the switch for one or the other, usually the one that's still rolling up will start to roll faster since the other window is not drawing anymore current. Try it!
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  6. #5
    Registered User DRIVER's Avatar
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    Very common situation. Because the power source, "switch" is farther away from the passenger side than the driver side, or because of the direct power source, the fuse panel, is closer to the driver's side than the passengers side. Anyway, the power has to travel a longer, linear, distance to the passenger side resulting in a loss of power, however slight. That difference is why the driver side motor operated marginally faster than the passenger side.

  7. #6
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    That does clafify things for me. Thanks. The reason I asked was cause in my old car with power windows there wasn't a difference that I noticed.
    Rubber Duckies Fair Well in the Rain

  8. #7
    Registered User Dave99's Avatar
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    Check your window guides inside the door. If they're not properly aligned, then you get more or less friction dragging on the windows and therefore slower motor speed.

    Dave.

  9. #8
    Registered User is2scooby's Avatar
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    My passenger window is significantly slower than my driver's window. I've owned a bunch of cars with power windows and have never seen a speed disparity this great.

    However, I have to say that the difference is less than 20% so it's not REALLY noticeable... It would be nice to have them "equal" but I don't know what the dealership would do to get them that way, and I don't want them giving me grief because I had the windows tinted. :-(

    Aloha,
    Richard...

    P.S. I just let my girlfriend think that I pused the button earlier than she did and won the "window race".

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