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Hello  I have a 2009 ls460 with about 140k miles  need some help trying to diagnose a problem 

I notice when I drive my vehicle I noticed a vibration /noise but when I take my feet off the gas it goes away  this will happen around  30-40 miles per and sometimes . at different  speeds /miles per hour . But again as soon as I take my feet off the gas it goes away / stop 
It does not happen on the highway at high speeds.  Took it to the dealership and of course they told me I need a new transmission . ( I have new tires on the vehicle ) it did it before the new tires and afterwards so this rules out the tires The vehicle has never has been in an accident or wrecked  other than that the vehicle runs & drives great I am just trying to get a second opinion or see if someone else had this problem / issue and what was done. 
I appreciate all feedback
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Hi Tony

The problem your having is one I'm not familiar with. But a 9 year old car with that number of miles does not rule out a repaired transmission. I would recommend asking around for a reputable independent  mechanics shop and get a second opinion.

Also, go to our database and look through the past postings about this problem. Go to the top right and click on search.

Paul

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  • 3 months later...

Before looking into another transmission I would do a drain and fill of the transmission pan while making sure there are no leaks. Also make sure the fluid level is correct.

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  • 1 year later...
On 9/30/2018 at 3:03 PM, TONY JACKSON said:

I am having the exact same issue on an 07 with 150,000 mi. Wondering if you ever got this fixed, and if so, how ? My car has no engine lights on, the transmission is smooth and quiet except if I am going between 40-50 mph while also at 1000-1300 RPM. It is very specific to the combination of speed, gear, and RPM for the vibration / grumbling to occur, and if I either speed up or slow down the sound goes away. If identified the issue or a fix I would LOVE to hear it. I searched quite a few places and about 4-5 others have posted this issue, but none have posted the solution......... Hope to hear from you. Thanks

 

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To this day we still have not fixed the problem.  The dealership just want us to replace the transmission (about $7000) so we decided not to we would just keep driving it until it goes out then get it fix  or untill it's in a accident & hope 🤞 thay total the vehicle out.  Still no lights  on & overall it's still drive good we have got  Used to it when we drive. We don't feel it's worth to fit it and then something else happens or they say oooo you need to fix this also.  

 

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52 minutes ago, TONY JACKSON said:

To this day we still have not fixed the problem.  The dealership just want us to replace the transmission (about $7000) so we decided not to we would just keep driving it until it goes out then get it fix  or untill it's in a accident & hope 🤞 thay total the vehicle out.  Still no lights  on & overall it's still drive good we have got  Used to it when we drive. We don't feel it's worth to fit it and then something else happens or they say oooo you need to fix this also.  

 

Man, thanks a lot for actually responding ! I have read 3 other people who had the exact same issue and none of them actually followed up with what they fixed or what they tried. I am curious, did you immediately just say "screw it, I will get used to it" or did you try anything like a transmission flush first ? I know you said you still have the same issue, so just wondering if you tried to do a do anything, that way I know at least what does NOT work so I don't waste any time or money on it.

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I did the  Transmission flush . $280 Had 3 different  Transmission  senses replace $465 .And one shop told me  It was some type of  bearings . We spent about $1800 and all of them would say well you have to start with  These things and eliminate them or they was bad . But  None of this stuff would fix the problem/issue .  And only thing the dealership would say is you need a new transmission.

So we just say f%@k it deal with it  Until it goes out and can not be  driven or a  Accident  I'm hoping for accident so The insurance company would total it out .

Hope this help you  good luck 

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12 hours ago, TONY JACKSON said:

I did the  Transmission flush . $280 Had 3 different  Transmission  senses replace $465 .And one shop told me  It was some type of  bearings . We spent about $1800 and all of them would say well you have to start with  These things and eliminate them or they was bad . But  None of this stuff would fix the problem/issue .  And only thing the dealership would say is you need a new transmission.

So we just say f%@k it deal with it  Until it goes out and can not be  driven or a  Accident  I'm hoping for accident so The insurance company would total it out .

Hope this help you  good luck 

Wow man, this was super helpful. You following up with me saved a whole lot of wasted time and money on my end and I really appreciate that. There is a site (benzeen auto parts) that sells 2 year warrantied transmissions for the LS 460 for around 1200 bucks. The warranty covers parts and labor as long as you use an ASE certified technician to install it. So if it is messed up they pay for the repair costs as well. Since this car was a gift, and didn't cost me anything, I am going to give this a shot. My mechanic in houston (Noah Auto Care on Almeda) charges around $1,000 to actually do the labor. I have never used him for a lexus before but they are super nice and I have used him for my other vehicles and he has always done right by me and my mother in law.

 

Hopefully I am not breaking rules by giving info on parts and mechanics here, but I want to be as helpful as I can to others who may have this issue, especially in the houston area. Again Tony, I cant thank you enough.

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  • 2 weeks later...
On 10/20/2020 at 6:57 PM, TONY JACKSON said:

I did the  Transmission flush . $280 Had 3 different  Transmission  senses replace $465 .And one shop told me  It was some type of  bearings . We spent about $1800 and all of them would say well you have to start with  These things and eliminate them or they was bad . But  None of this stuff would fix the problem/issue .  And only thing the dealership would say is you need a new transmission.

So we just say f%@k it deal with it  Until it goes out and can not be  driven or a  Accident  I'm hoping for accident so The insurance company would total it out .

Hope this help you  good luck 

Hey man, I found some info on another forum that suggested you do a transmission drain and fill, and........... IT WORKS !

From amazon I ordered:

12 quarts of the toyota brand WS AT fluid ($140 bucks on amazon)

2 pitchers, one for clean fluid, one for dirty $30 bucks total on amazon)

The exact same pump she used in this video ($50 bucks on amazon)

And the toyota Software she used in this video to check the levels. ($70 bucks on amazon, includes the odb cable.) - this was bootleg, but it worked well. You do need a windows laptop to install it on, but they give you instructions and they worked.

I did it myself at home. Basically used the youtube video below

 

All of it was on amazon, and it all cost me collectively less than $300, and after doing the fluid drain and fills (did about 4 of them) and driving the car for about 50 miles the shudder has gone away. The reason I did it myself is because when I called around to other places the price was either too low or too high. The place that seemed like they were going to do a full 12-15 quarts like I thought I needed was charging upwards of $1,000, which was wayyyy too much. Other shops were charging $100 or less, but I felt like they were only going to do 1 drain and fill (because I spent $140 on JUST THE OIL. so it is no way they were going to put 12 quarts thru my system), so I decided to handle at home. Can't stress enough that this works. If you got this done on your own, my guess is they only did 1 drain and fill. Each time you do a drain you are getting out about 2-4 quarts, but if you only do 1 drain, then that means you are leaving 9-12 quarts of OLD fluid in your transmission. That is why you need to do it at least 4 times to clear all the gunk out. So, just wanted to come back and let you know, NO BS, that the drain and fill 100% worked for me. It is worth a shot. Good luck if you decide to try it.

 

 

 

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Thinks for that information I am going to check in to that I talk to my  Mechanic about doing that  he said  Hey don't have a problem doing it but  he was going to ask around  About other vehicles having them issues also .I wanted to know  How long has it been since you did all the them transmission flush? And still no more problems? Also thanks 😊 for that information about the transmission will keep that as a  last resort .

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It is a bit odd that this dealership states:

Quote

LEXUS LS 460 TRANSMISSION FLUID

A transmission fluid change is frequently half the price of a transmission flush as it requires a lot less fluid and time to perform. Lexus LS 460 transmission fluid changes are extremely necessary to keep your vehicle's transmission charming and lubricated. If you don't routinely change your fluids at least every 30,000 miles or so, you may find that your Lexus LS 460 transmission will slip. Check your car's owner's manual for more information on the explicit mileage intervals in which your transmission needs the fluid replaced.

It is also odd that no year of LS460 is mentioned.
I have read that there is no transmission fluid change intervals in the owner's manual, yet this dealership seems to imply that not changing the fluid in 30,000 mile intervals may result in drivability issues.
 



https://www.plazalexus.com/lexus-ls-460-transmission.htm

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On 10/31/2020 at 7:04 PM, TONY JACKSON said:

Thinks for that information I am going to check in to that I talk to my  Mechanic about doing that  he said  Hey don't have a problem doing it but  he was going to ask around  About other vehicles having them issues also .I wanted to know  How long has it been since you did all the them transmission flush? And still no more problems? Also thanks 😊 for that information about the transmission will keep that as a  last resort .

I did this service last Sunday (Oct 25th, 2020). I ordered he following things from Amazon to get it done:

12 qts Toyota brand WS AT Fluid

https://www.amazon.com/gp/product/B0799J7D5M/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1

The ODB Software and an ODB cable for Toyota / Lexus the young lady used in the video

https://www.amazon.com/gp/product/B07BCL3DFR/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

This same pump the young lady used in the video

https://www.amazon.com/gp/product/B00I6BG1KI/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

As well as a couple of pitchers so I could drain old fluid in one, and fill the other up to the same level to pump back in.

Once I was done with the service, I took it for a test drive and it was STILL making the loud grumbling / vibration at around the ~1200 RPM mark between 40-60 MPH. I immediately decided that I would just go ahead and let my mechanic install a used transmission in the vehicle, so Monday morning I drove it to him and told him to find a transmission for me and give me an official price quote, because up to this point he was giving me ballpark numbers. The mechanic is maybe 20 miles from my house, and I specifically remember that right before I pulled up to his location the car made the grumbling / vibration again.

He kept the car 4 days, but didn't do anything to it, and called me back saying he had not located a transmission yet, and that I could pick up the car because it could be awhile before he found one, and needed to make room for other cars at the shop. I went and picked it up Friday Oct 30th. It made the sound once more after leaving his shop, before getting on the highway to make my 50 mile drive to work, and it has never made the sound again.

Honestly, the car drives great now. Now that the drain and fill is done, driving down the road is noticeably smoother at ANY speed and RPM, not just the speeds where it was grumbling and making that loud reverb noise. Since friday I have put probably 500 miles on the car (def filled it up with gas twice) and I assure you the sound is gone. I highly recommend you get this done. I may have said this before, but I basically had ZERO faith that any shop would have done this right other than me, so I did it myself at home. I actually have quite a bit of tools, floor jacks, and jack stands at my house in my garage so I was very comfortable giving it a shot because if I somehow screwed up, I already decided I was buying another transmission anyway.

If you are taking it to a mechanic, maybe show them the video I posted so they know what it is you want done. Maybe even tell them you will provide the transmission fluid yourself.

Looking around the other forums I learned a couple of things about the transmission.

1: Nobody suggests that you do an actual transmission FLUSH. They all say flush is a no-no, and you should instead drain and fill like the young lady in the video. Most people say do at least 3 cycles. I ordered 12 quarts and just kept doing the drain and fills until I used all my new fluid, which in my case was 4 drain and fills. Between each fill I would get in the car and cycle through the gears 3-5 times just like the woman did in the video.

2: Lexus USA is apparently the ONLY country where Lexus says that transmission fluid NEVER needs to be changed. Japan, Europe, and even Canada have a suggested maintenance schedule of 30,000km or something like that where you need to get the fluid changed out. This is just what I read other places online, so feel free to do your own research on that.

Having said that, I would bet my bottom dollar that the transmission drain and fill procedure shown in the video will get your problem taken care of. I plan on doing this service at least once every other year, but possibly once a year. I would love to find a mechanic that would do it for around $200 labor if I provided all the materials. I don't enjoy working on cars, and am honestly not very good at it, but was still able to knock this out.

And just to reiterate, my problem was specifically my car would have a very loud rumbling / shutter / vibration during city driving whenever the car was in maybe 3rd or 4th gear (I cant tell which gear but this is my best guess) and the RPMs were somewhere between 1000 ~ 1300RPM, usually this would put me between 40-50 MPH. The car was ALREADY doing this when I bought it a month ago, and the previous owner said he owned the car for a year himself, and it made the sound the whole time he had it as well (maybe he's lying, IDK). The sound was VERY noticeable, and occurred often, but other than this specific issue the car ran fine, shifted gears fine, and accelerated fine. No check engine lights or anything like that..I ALSO took it to the Lexus dealership in Clear Lake, and they told me I needed a new transmission and torque converter. LOL

Now the sound /shudder / vibration is 100% gone and the car overall drives much better. I mean, I thought it drove fine before except for the noise, but now I see that I was wrong and can tell the difference. No new trans, no new torque converter. Just changed out the freaking transmission oil and voila !

Sorry for the wordy response.

I will do my best to keep an eye out on this post for any questions you may have as a follow-up, but I feel like I gave you all the info I have. Rest assured that if the sound comes back, or if I have any more updates on this I will definitely come back to post, because I do not want to leave anyone hanging with half- way answers or mislead them. I was pretty stressed out about this damn sound, and was pretty disappointed that nobody followed up their posts with answers, so I wont do the same, and hopefully this helps someone in the future.

 

 

 

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Thank you very much, jcelestine for your very detailed explanation of how you fixed the issue. Our RX400h has a CVT transmission, so it is quite a bit different, but I have changed other cars' auto transmission fluid, many times. None of these cars had ever had any transmission problems.
Back some years ago, I replaced my Miata's manual transmission fluid with Redline synthetic of the correct viscosity. Shortly after I did, a 4th to 6th shift would result in a crunch. Because I don't run the car more than 3000 miles per year, I let it go for a few years. 
 Just recently, because I needed to change the differential fluid, I decided to also replace the transmission fluid, this time with the factory stuff which is highly recommended by many folks in the Miata forum.
 Well, shortly after I did this, the 4th to 6th and occasional 1st to second crunch disappeared. I was a happy camper. 😀

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  • 2 weeks later...
On 9/30/2018 at 3:03 PM, TONY JACKSON said:

Hello  I have a 2009 ls460 with about 140k miles  need some help trying to diagnose a problem 

I notice when I drive my vehicle I noticed a vibration /noise but when I take my feet off the gas it goes away  this will happen around  30-40 miles per and sometimes . at different  speeds /miles per hour . But again as soon as I take my feet off the gas it goes away / stop 
It does not happen on the highway at high speeds.  Took it to the dealership and of course they told me I need a new transmission . ( I have new tires on the vehicle ) it did it before the new tires and afterwards so this rules out the tires The vehicle has never has been in an accident or wrecked  other than that the vehicle runs & drives great I am just trying to get a second opinion or see if someone else had this problem / issue and what was done. 
I appreciate all feedback

I have a 2012 with 90K miles on it and have not had that problem.  Have you owned the car since new?  Can you let me know any major repairs needed between 90K and 140K miles?  That would be very helpful so I can decide if the warranty I bought is worth it.

 

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