Vibration at 30 to 40 mph

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Thread: Vibration at 30 to 40 mph

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    Default Vibration at 30 to 40 mph

    I just purchased a used 2006 Tundra with 12,000 miles on it. After having it for a few days I noticed a harsh vibration at or near 35 to 42 mph. It feels like you are driving over the lines that are cut in the road when approching a stop sign. If you get through this speed it's not there. It seems to get more noticable as the truck warms up.
    Of course I didn't purchase it from a Toyota dealer near by.
    I heard that there were problems with the touque converters and that Toyota is standing behind this problem and installing new converters?
    I'm going to be contacting the local dealer to see what they will do.
    Anyone have this problem? and what was done by the distributor?

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    Default Re: Vibration at 30 to 40 mph

    Not tire related?

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    Default Re: Vibration at 30 to 40 mph

    As stated above..... Check to see if there is abnormal wear on your tires (i.e. outside wearing faster that the rest). That would be due to either an alignment issue or unbalanced wheels.

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    Default Re: Vibration at 30 to 40 mph

    No, I don't think it's the tires. I can stop the vibration by either letting up on the gas petal or slowly increase speed. It almost feels like it happens when you reach that speed and it shifts to the last or highest gear.
    The whole truck shakes like you were driving across railroad tracks, or like I said the grooves cut into a road when approching a stop sign.
    Once I get through that speed (38 to 42 MPH) I can run up to 80 mph with no shake or vibration.

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    Default Re: Vibration at 30 to 40 mph

    Driveshaft threw a balance weight?
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    Default Re: Vibration at 30 to 40 mph

    If it threw a balance weight it would get worse the faster you went, and the vibration always there.
    Once I get through that area of speed it's doesn't vibrate. I can run it right up to high speed without vibration.

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    Junior Member David Jones's Avatar
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    Default Re: Vibration at 30 to 40 mph

    Quote Originally Posted by mddubins View Post
    If it threw a balance weight it would get worse the faster you went, and the vibration always there.
    Not necessarily. It would be real cheap to look.

    I'd also consider having the tires looked at. Road force balanced. Checked for separated belts etc., 12,000 miles in 6 years means a LOT of time sitting around getting dry rot. I personally prefer to start with the cheaper easy stuff before I started tearing in to the transmission/torque converter.

    I had an 05 D/C (my sons now) since new and currently also have an 06 D/C and have never heard of a torque converter issue with these trucks. A quick search here doesn't find anything either.
    Last edited by David Jones; 09-07-2011 at 12:05 PM.

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    Default Re: Vibration at 30 to 40 mph

    I think the drive train is a good place to start looking as well as the tires. In addition to checking to see if a weight is missing from the drive shaft I would recommend checking the U-joints as well. The fact that it happens when under load and disappears when you lift from the accelerator leads me to believe it is drive train related and not so much the wheels.

    Good luck and let us know what you find out - your solution could help another member later on down the road.
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    Default Re: Vibration at 30 to 40 mph

    Quote Originally Posted by mddubins View Post
    If it threw a balance weight it would get worse the faster you went, and the vibration always there.
    That's not true. The harmonic nature of rotational imbalances could easily cause the vibration to be more pronounced within a certain RPM band.

    Quote Originally Posted by mddubins View Post
    Once I get through that area of speed it's doesn't vibrate. I can run it right up to high speed without vibration.
    This leads me to believe it might be driveline related rather than in the tire/wheel. However, it's best to address the easiest/cheapest possibilities first. Have the wheels/tires balanced, inspect the driveshaft for missing balance weights and loose/rattling/dry u-joints, and report back what you find.
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    Default Re: Vibration at 30 to 40 mph

    Mddubbins , here's another cheap and easy thing to check in the driveline - check to see the two halves of the drive shaft are in 'phase'. That is - the yokes at each end of ths drive shaft are positioned exactly the same. If the yoke on the front of the drive shaft is sitting at the 3:00 o'clock and 9:00 o'clock position then the yoke at the other end of the drive shaft should also be at the 3:00 and 9:00 position.
    If you find them to be 90* off from one end to the other then that would most definitly cause a vibration at speeds between 30-40. If you find this to be the case then you would need to drop the drive shaft , pull it apart and then re-assemble with yokes in line with one another. Also this would be a good time to replace the U-joints as they would have been damaged by the vibration.

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    Default Re: Vibration at 30 to 40 mph

    I'm haveing the same problem with my 02 tundra, strange vibration at 30 - 40 and its not at the same rotational speed as the tires and drive line. It is kind of like when your comming up on a toll plaza on the highway with the spaced out rumble strips.
    02 toyota tundra V8
    06 toyota RAV4 V6

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    Default Re: Vibration at 30 to 40 mph

    Ok, I'm trying to "play" with this and here's more information.
    If I leave the truck with the overdrive on on I get this virbration. If I drive with the overdrive off it's not there at any speed. Seems to only be there with the overdrive on.
    This tends to point at the transmission or touque converter.
    Is there an external source or devise that allows the transmission to shift in and out of overdrive?
    I find it hard to belive that the transmission is an issue with on 12K on the truck.
    Another thing is could the over drive on the transmission be "sticking" due to lack of use?

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    Default Re: Vibration at 30 to 40 mph

    I took the truck into the local dealer to have them look at it. They too also felt the vibration at the 35-42 mph.
    They checked the drive shaft first, and said it was dry so the lubricated it but didn’t solve the problem. They checked for lost or broken off balance weights but all was fine.
    They then flushed the transmission to see if new fluid would help. When flushing they are able to look at a “in place filter”, but no metal was found. This also didn’t cure the vibration.
    They also did not feel any vibration when the O/D was shutoff. They say it’s the high speed clutches that are sticking and will most likely need a transmission replaced.

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    Default Re: Vibration at 30 to 40 mph

    have you check if its a burned valve?

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    Default Re: Vibration at 30 to 40 mph

    Burned valve? In the engine?

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