lemieux Posted February 3, 2009 Share Posted February 3, 2009 I am experiencing vibrations at low rpm (between 20 - 38 mph). I don't notice it when I am accelerating but do when I am applying a small amount of pressure on the pedal. It is a 2008 IS 250 automatic with 6K. Any suggestions? Quote Link to comment Share on other sites More sharing options...
Jeremy1976 Posted February 3, 2009 Share Posted February 3, 2009 I am experiencing vibrations at low rpm (between 20 - 38 mph). I don't notice it when I am accelerating but do when I am applying a small amount of pressure on the pedal. It is a 2008 IS 250 automatic with 6K. Any suggestions? Sounds like a out of balance wheel. Quote Link to comment Share on other sites More sharing options...
IS250_rookie Posted February 3, 2009 Share Posted February 3, 2009 Looked around on google for you(well just the first result for now), and here is what I found. This is from Toyota Tundra forums. http://www.tundrasolutions.com/forums/engi...peed-vibration/ I took my truck back to the dealer who was really motivated to find the problem - he found it. Turns out, Toyota knows about the problem and calls it a "working as designed" non-problem.It is "rotational mass vibration of the front axle and transmission assembly being relayed through the hard mounted steel brake lines under the drivers side floor boards." It happens when the fluids are cool - when they warm up it happens less (in fact, it goes away fully in hot weather - I'm not quite clear on why fluid temp makes a difference.) The dealer can't do anything more, but encouraged me to speak with Toyota directly and get others to do the same. The power of numbers will cause Toyota to come up with a "fix". Not the answer I had hoped for, but at least the problem's been identified. It's a start...if you have the same problem, let Toyota know about it... Quote Link to comment Share on other sites More sharing options...
lemieux Posted February 3, 2009 Author Share Posted February 3, 2009 I am taking it to the dealer this week and will report back if they determine the cause. Thanks for the input. Quote Link to comment Share on other sites More sharing options...
LEXUS IS250 AWD Posted February 3, 2009 Share Posted February 3, 2009 I prior posted about the bulge on the side of my tire causing vibration. After the tire was replaced the vibration went away completely. A few days ago while on the highway I started noticing vibration when I hit higher speeds, excess of 60km/hr. Checked all the tires myself, no bulges or obvious damage, not sure what it is this time. Hope I don't have a damaged rim? Maybe the mechanic at the dealership didn't properly balance the tire.... <_< Quote Link to comment Share on other sites More sharing options...
BillyShaft Posted February 3, 2009 Share Posted February 3, 2009 I prior posted about the bulge on the side of my tire causing vibration. After the tire was replaced the vibration went away completely. A few days ago while on the highway I started noticing vibration when I hit higher speeds, excess of 60km/hr. Checked all the tires myself, no bulges or obvious damage, not sure what it is this time. Hope I don't have a damaged rim? Maybe the mechanic at the dealership didn't properly balance the tire.... <_< That sounds likely. Quote Link to comment Share on other sites More sharing options...
IS250_rookie Posted February 4, 2009 Share Posted February 4, 2009 I had vibrations in my car at 35mph and higher, the cause - snow in the rims from too much fun :) Quote Link to comment Share on other sites More sharing options...
bartkat Posted February 4, 2009 Share Posted February 4, 2009 Sometimes a wheel weight gets thrown off. Quote Link to comment Share on other sites More sharing options...
LEXUS IS250 AWD Posted February 4, 2009 Share Posted February 4, 2009 I'm sure a good wash will get rid of any snow/ice build up on the rims, hopefully then the vibration will diminish - wishful thinking but i'll try it Quote Link to comment Share on other sites More sharing options...
BillyShaft Posted February 4, 2009 Share Posted February 4, 2009 I agree...good cleaning does wonders. My Rubicon gets mud all over the backsides of the rims and the trip home is often a nightmare of shimmying and bouncing until I can get it cleaned up. I also regularly tear off wheel weights too, but my application is a little different from yours I think ;) Quote Link to comment Share on other sites More sharing options...
lemieux Posted February 10, 2009 Author Share Posted February 10, 2009 Just heard from the dealer. Transmission fluid is slightly "contaminated". The plan is to power flush and replace. I will upadte when it is completed. The news is not very encouraging. Quote Link to comment Share on other sites More sharing options...
tsantoro Posted February 10, 2009 Share Posted February 10, 2009 Just heard from the dealer. Transmission fluid is slightly "contaminated". The plan is to power flush and replace. I will upadte when it is completed. The news is not very encouraging. From what I've read, this transmission does not have a drain plug or a fill tube and the fluid was not meant to be changed. If you truly do have "contaminated" fluid and the vehicle is still under warranty, this dealer should perform this service free of charge. Quote Link to comment Share on other sites More sharing options...
PETERW Posted February 11, 2009 Share Posted February 11, 2009 I am experiencing vibrations at low rpm (between 20 - 38 mph). I don't notice it when I am accelerating but do when I am applying a small amount of pressure on the pedal. It is a 2008 IS 250 automatic with 6K. Any suggestions? if you could tell me if the dealer fix this problem because i have 2006 is250 rwd and it does the same thing and i check every single thing and nothing,the only thing left i was told to do is to reprogram the ecu to transmission or transmission module to ecu? Quote Link to comment Share on other sites More sharing options...
lemieux Posted March 14, 2009 Author Share Posted March 14, 2009 Update: Dealer replaced the transfer case without charge. Quote Link to comment Share on other sites More sharing options...
bartkat Posted March 15, 2009 Share Posted March 15, 2009 Thanks for updating us. Quote Link to comment Share on other sites More sharing options...
BooCloud-CAN Posted January 11, 2011 Share Posted January 11, 2011 Did replacing the transfer case fix the vibration problem? I have a 2007 IS250 AWD 43k and it vibrates when stopped at a stop light. Update: Dealer replaced the transfer case without charge. Quote Link to comment Share on other sites More sharing options...
beginner Posted February 20, 2012 Share Posted February 20, 2012 check the disc brake calipers I had similar problem before. Quote Link to comment Share on other sites More sharing options...
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