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I was wondering what happened with the OP's transmission? Did he ever get a new transmission or a torque converter? It seems like the thread was hijacked and he quit posting or did I miss the 'fix'?
 

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I had my transmission dropped off at a transmission specialist. He dropped the transmission, checked out the internals, all was fine. He threw in a new torque converter, yet he says the shudder is still there. He is only charging me for parts and oil since he can't resolve the problem. I am beyond frustrated right now. On my way to pick up the truck right now.

He suggested that I have the ECU reprogrammed since it only happens in D and at low speeds. So I will try and have the dealership do that. He also suggested if that doesn't solve the problem he could replace the valve body on the transmission. I called my friend who works at Toyota to see if he was up for reprogramming my ecu but he won't be available for another week. My friend at the dealership mentioned the problem might also be in my differential. But i don't see how that's possible if the shutter only occurs in D. If that was the case wouldn't I be experiencing the same shudder at all times?
 

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I don't see how it can be a differential if the shudder goes away when you drop a gear D->4 (increasing engine rpm's) but maintain the same vehicle speed.

DEWFPO
 

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I was hoping you'd figured this out Beerz. I had mine in the shop (a good local place called "The Toy Shop") about 30K ago and don't remember the shudder before that. They changed plugs, and I was betting that they had used Champions or Bosch or something. So I hit the dealer and bought 6 new Nippon Denso plugs (FJ spec, didn't want to take any chances) and popped the hood. Unfortunately (or fortunately), the plugs that The Toy Shop put in were Nippon Densos, identical to the ones I got from the dealer. I guess I shouldn't be surprised; they're a good shop that specializes in Toyotas (and Hondas). Anyway, it had been 30K miles so I figured WTF, swap them out, even though the old ones looked damn near brand new. So I did, and the shudder is still there. Well.... at this point, I'm thinking, I've read lots of posts on this "problem", and I don't recall hearing anyone talk about it being a real serious issue, making it unsafe or unable to drive... just annoying. Mine usually occurs around 40-45mph on a slight incline with slight acceleration. It feels like I'm driving over the tracks left by a bulldozer or excavator, nothing real bad. I figure I'll just drive it until/unless it becomes a real problem. So thanks for the tip Beerz; I'm glad it worked for you. At least I've got new plugs!
 

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Transmission or torque converter shudder is often miss diagnosed. An engine misfire can feel like a torque converter shudder. Also an engine miss can't be felt until the torque converter locks up. To tell the difference between an engine miss and a lock-up shudder you need a scan tool like the Toyota factory scanner or an aftermarket scanner like a Snap-On Modis or Solus Pro.
Here's how to diagnose the shudder. First look for any misfire codes. If you have misfire codes the odds are the shudder is an engine problem. If there are no codes in memory next check for any pending codes.
Look at the Long Term Fuel Trim. The long term trim should be close to ZERO. If the trim is over +7 or under -6 you have an engine problem for sure.
Finally drive the truck and get it shuddering. While it's shuddering watch the short term fuel trim along with the downstream O2 sensors. If it's really a Torque Converter Shudder the ST fuel trim and the O2 sensors will remain stable. If it's an engine misfire the ST trim will go negative and the O2 sensor will show the changes.
 

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Well at 103,000 miles I too now have the low speed shudder. I experience mine at low speed and light acceleration between 20-25mph. What I have noticed is I experience it pretty consistently with the air conditioner on and its spur attic without the air on. Also like everyone else it’s only in D/OD. If I drop it into 4 it goes away. I took it to the dealer and after 4 hours the only thing they could come up with was possible u-joints at the cost of about $500. I told them to hold off as I’ve never heard of a set of u-joints making a shudder at 20-25mph. So I decided to take it to another shop and they confirmed my thoughts the u-joints looked fine. So from there I went to discount and had them re-balance my all the tires. Did find one out of balance but it still did not solve the shudder issue. From there I went to a local transmission shop. Owner took it out and I rode along to see what he thought. He feels there’s nothing wrong with the tranny or torque converted but rather a possible engine issue. He’s thinking a maybe a plugged injector or possible gasoline contamination. He stated at such a low speed that there no way the torque converted could be an issue. So I’m going to take it back to the dealer and have them scan the computer for errors.
 

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I bought my FJ with 50k on it and I have the shutter symptom as well. If it is the torque converter does anyone know what kind of dollar amount I am looking at to have this fixed? Also if I let it continue is it going to end up costing me more money in the long run?


Sent from my Autoguide iPhone app
 

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Discussion Starter #94
I was wondering what happened with the OP's transmission? Did he ever get a new transmission or a torque converter? It seems like the thread was hijacked and he quit posting or did I miss the 'fix'?
I had forgotten about this story until I read another thread about the same problem. Unfortunately I didn't get a new transmission, they did the fluid flush and so far, problem solved. However, I've seen more than one instance where the fluid flush was only a temporary solution and the problem returned sometime down the road. If I feel any shudder at all that baby is going back to the dealership.

I have around 90k miles on the FJ and the warranty is good until 100k so I have some time, knowing my luck though, it'll probably happen around 101k miles.
 

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OP,

Although this issue was resolved for you, I do appreciate the time you spent detailing the troubleshooting of your shutter. I too have started to experience this issue with my 07 FJ. Today I had the Transmission fluid flushed and replaced. Obviously the shuttering is still there, but I'll prob need to drive a couple hundred miles to see if that worked. I'm also going to replace the Spark Plugs just in case.

Anyway, I just wanted to thank you. It's detailed forums like this that help us all save time and money. For those that are still following this issue, i'll update my progress to the shuttering issue as it unfolds.

--BJ
 

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"So thanks for the tip Beerz; I'm glad it worked for you. At least I've got new plugs!"


Good gosh, I am so sorry for messing you up! You replaced the spark plugs because of me? I am really sorry for sharing my experience! Hey, man, by all means, replace that transmission and torque converter!
 

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glad they did something for you OP, its been MONTHS since I ve looked at this post or been on this site...I remember talking to you about this whole situation though.

Alot of times, if you catch it in time, a fluid exchange can correct the issue if the plates and clutches in the TQ are not destroyed enough. Sounds like in your case you are good to go!
 
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