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also interested. I only use fumoto valve for engine oil pan. Never fails on me so far. What is the size/spec of the fumoto valve you use in this case?
GX transmission pan drain plug appears to be m10 1.25 or 1.5. I only see fumoto f124N at m10, but it is a bit too long and can be risky without protection.
One tidbit, I usually use the inexpensive bar type torque wrenches. The ones that bend and have a gauge with a needle. They are not as accurate as the click type or digital, but they are foolproof.
The best part is that they are very inexpensive (I say this as someone with thousands of dollars of torque wrenches).
Background:
Hi all, hope I am in the right place. I just got my 2020 GX Premium about 6 months ago. Currently at 51k miles. Lexus dealership performed a transmission fluid flush at my request around 5k miles ago. There has been no perceivable change in drivability/ smoothness. I had them do this service because I am becoming paranoid about future problems with the posts I have read on a GX Facebook group I am in- one guy said his GX was recommended to have the trans replaced at 87k miles.
Questions:
1) Has the transmission in the GX remained the same model, unrevised since 2010?
2) Is there any data on percentages of GX that have transmission failure (with years/ miles/ etc.)
3) Should I legitimately be concerned about a problem that doesn't exist for me (yet)?
I want to continue enjoying my GX, and would love to keep this vehicle for the long haul. The thought of paying $7,500 for a remanufactured transmission however, is making me think about if I made the right choice.
As an aside, I do think that people with no problems are less likely to post how good their experience is. My perception is likely skewed because of this fact. Hope you guys can tell me if my worries are unfounded, or if I should plan on keeping an extra $7,500 put aside for a transmission repair! Thanks in advance for your replies.
Background:
Hi all, hope I am in the right place. I just got my 2020 GX Premium about 6 months ago. Currently at 51k miles. Lexus dealership performed a transmission fluid flush at my request around 5k miles ago. There has been no perceivable change in drivability/ smoothness. I had them do this service because I am becoming paranoid about future problems with the posts I have read on a GX Facebook group I am in- one guy said his GX was recommended to have the trans replaced at 87k miles.
Questions:
1) Has the transmission in the GX remained the same model, unrevised since 2010?
2) Is there any data on percentages of GX that have transmission failure (with years/ miles/ etc.)
3) Should I legitimately be concerned about a problem that doesn't exist for me (yet)?
I want to continue enjoying my GX, and would love to keep this vehicle for the long haul. The thought of paying $7,500 for a remanufactured transmission however, is making me think about if I made the right choice.
As an aside, I do think that people with no problems are less likely to post how good their experience is. My perception is likely skewed because of this fact. Hope you guys can tell me if my worries are unfounded, or if I should plan on keeping an extra $7,500 put aside for a transmission repair! Thanks in advance for your replies.
I have a 2011 and it's a nightmare. It's in the shop as we speak waiting on an estimate for a transmission rebuild. With that said, one place that looked at the transmission, said it was 2010 -2012 that had the transmission issues. A new transmission at 87k is ridiculous. I have 125k and I'm livid.
Background:
Hi all, hope I am in the right place. I just got my 2020 GX Premium about 6 months ago. Currently at 51k miles. Lexus dealership performed a transmission fluid flush at my request around 5k miles ago. There has been no perceivable change in drivability/ smoothness. I had them do this service because I am becoming paranoid about future problems with the posts I have read on a GX Facebook group I am in- one guy said his GX was recommended to have the trans replaced at 87k miles.
Questions:
1) Has the transmission in the GX remained the same model, unrevised since 2010?
2) Is there any data on percentages of GX that have transmission failure (with years/ miles/ etc.)
3) Should I legitimately be concerned about a problem that doesn't exist for me (yet)?
I want to continue enjoying my GX, and would love to keep this vehicle for the long haul. The thought of paying $7,500 for a remanufactured transmission however, is making me think about if I made the right choice.
As an aside, I do think that people with no problems are less likely to post how good their experience is. My perception is likely skewed because of this fact. Hope you guys can tell me if my worries are unfounded, or if I should plan on keeping an extra $7,500 put aside for a transmission repair! Thanks in advance for your replies.
I am also very paranoid about this with my GX 2011 120k. I did a survey on GXOR Facebook page. The consensus was that this issue is not common given a small number of people reporting this issue vs the number of cars sold. And that I shouldn't be worried about the issue that I dont have(I fully sympathize with you).
So I am going to keep maintaining my tranny by 100 percent fluid exchange.
I suspect that dealer did a drain and fill and not a 100 percent fluid exchange. Please double check that. Just one drain and fill is not going to do much as there is about 3 qts or less comes out of the pan only. While a complete exchange or flush will require about 13 qts. After full exchange I definitely noticed significant shift smoothness. My fluid was very dark also.
For first question, it does seem that there is some change in the tranny post 2012. Acrad mentioned there is different number of pins to ECM for post 2012. I dont know if this has anything to do with actual mechanical components used in tranny.
I am also very paranoid about this with my GX 2011 120k. I did a survey on GXOR Facebook page. The consensus was that this issue is not common given a small number of people reporting this issue vs the number of cars sold. And that I shouldn't be worried about the issue that I dont have(I fully sympathize with you).
So I am going to keep maintaining my tranny by 100 percent fluid exchange.
I suspect that dealer did a drain and fill and not a 100 percent fluid exchange. Please double check that. Just one drain and fill is not going to do much as there is about 3 qts or less comes out of the pan only. While a complete exchange or flush will require about 13 qts. After full exchange I definitely noticed significant shift smoothness. My fluid was very dark also.
For first question, it does seem that there is some change in the tranny post 2012. Acrad mentioned there is different number of pins to ECM for post 2012. I dont know if this has anything to do with actual mechanical components used in tranny.
Thanks @ahmerx ! I can confirm that the dealership performed the full flush and not just drain and fill. The fluid quantity on my invoice confirms this.
141k on my 2012, no issues. First drain and fill x2 at 118k. Second just two weeks ago. Also did the filter and gasket but probably wasn't necessary.
Drain and fill is the only way to go on our cars, especially once they get some mileage on them. Adding the well documented OEM transmission cooler is another way to help ensure longevity. Obviously there are some failures out there but those are outliers in my opinion as the vast majority of us haven't had any issues.
141k on my 2012, no issues. First drain and fill x2 at 118k. Second just two weeks ago. Also did the filter and gasket but probably wasn't necessary.
Drain and fill is the only way to go on our cars, especially once they get some mileage on them. Adding the well documented OEM transmission cooler is another way to help ensure longevity. Obviously there are some failures out there but those are outliers in my opinion as the vast majority of us haven't had any issues.
Thanks @Romanova ! Do you think that I was safe to do the full flush at 45k miles? I would like to continue this practice every 30k miles. Some people seem to be very against doing the full flush, but I am wondering since my first one was at low mileage if it is OK.
141k on my 2012, no issues. First drain and fill x2 at 118k. Second just two weeks ago. Also did the filter and gasket but probably wasn't necessary.
Drain and fill is the only way to go on our cars, especially once they get some mileage on them. Adding the well documented OEM transmission cooler is another way to help ensure longevity. Obviously there are some failures out there but those are outliers in my opinion as the vast majority of us haven't had any issues.
You can do a 100 percent fluid change using the supply and return line to the radiator. Pretty easy DIY to be honest. I have and some others have the writeup in the this thread on how to with pictures etc. ( If you search ahmerx , you will see it. Post 451)
https://www.clublexus.com/forums/gx-2nd-gen-2010-present/837297-transmission-fluid-change-31.html
Thanks @Romanova ! Do you think that I was safe to do the full flush at 45k miles? I would like to continue this practice every 30k miles. Some people seem to be very against doing the full flush, but I am wondering since my first one was at low mileage if it is OK.
You did the right thing and I would have done the same. Try to relax a bit .
What is causing transmission 2nd to 1st deceleration lunge?
2015 GX460 with 110,000 miles.
Things have been super smooth until yesterday. I cleaned the Mass Airflow Sensor and the Throttle Body, and now there's a surge/lunge when decelerating from 2nd to 1st gear.
I pulled fuse #9 to reset the ECU, as it says in the repair manual, but I'm wondering if I should have disconnected the battery for a while, so it resets the whole system.
Do you think I caused this by not resetting it correctly, or is it something else?
My car cranked up without any problem, not like
I typically don't like forcing electronic TB plates open like that, I rather use some weight on the pedal to keep it open. Also, while I'm not advocating that dirty TBs should not be cleaned, as they "learn" and "adjust" the idle overtime, in many cases cleaning them do more harm than good and people end up with erratic idle.
I would disconnect the battery for a few minutes then run the idle relearn process (I have never done it on the GX but pretty sure this forum has DIY).
On our Honda, if you clean the TB like shown on the video you MUST use a bi-direction scanner to reset the idle, no way around it, no amount of disconnect time fixes it.
01-05-23, 02:32 PM
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What is causing transmission 2nd to 1st deceleration lunge?
