Toyota FJ Cruiser Forum banner

1 - 20 of 114 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
I've read the thread on this and something is not quite adding up
I have a 2007 that I have owned since it was new. Now I'm at 77K miles and a "shudder" that felt like torque convert lock up starts happening. I had recently changed the battery and the Technician at our local Toyota dealer said that the power interruption might have had something to do with it. So the Tech reset the Computer and the shudder stopped. Now 4 weeks later it has returned.
This only happens in 4D at around 20 to 40 mph with RPM around 1200-1500.
if I switch it to 4 it goes away. If this was mechanical failure wouldn't it still shudder? I think it must be the computer. I wanted to change to synthetic fluid at around 30K miles but dealership recommended not. "fluid is good to 100K miles" they said.
My FJ is equipt with Diff Lock and Atrac. but of course I dont drive this way unless needed.

Thanks in advance.
Ray
 

·
Premium Member
Joined
·
2,268 Posts
The shudder could be the torque converter or an engine miss. If it's an engine miss you will only feel it when the torque converter is locked up. When the converter is unlocked the misfire is absorbed by the fluid inside the converter. A good tech with a scanner can drive the truck with a scan tool and see if the shudder is the trans or an engine miss. If the shudder is the converter a fluid change may help. There is also a product on the market called "LubeGard" which you can buy at most transmission shops. If the converter clutch is glazed this product may help. It's similar to posi additive as to how it works.
 

·
Registered
Joined
·
1 Posts
I am a new member to this forum, but have found valuable information here before. For what it is worth, I learned a very valuable lesson about this transmission shudder from some other posts which saved me much $$. I have a 2008 FJ with 66k miles. The shudder just began in the last 2 weeks. After finding that others have experienced this issue, I looked further and found that there appears to be some faulty transmissions in service.

Just yesterday, I visited one of my local dealers to have the shudder checked out. I was also armed with the information provided by others from this forum. Within 2 hours, the dealer told me I needed a new transmission which is where the fun began. I purchased the FJ as Certified used (from a dealer in a distant city) which I now know means that Toyota has applied an extended warranty to the vehicle. While the dealer told me that I needed a new transmission, they were not in direct control of authorizing a replacement. I had to leave the vehicle and have an adjuster from the "extended warranty" company look at it today. They made the dealer jump through a couple of hoops, but ultimately authorized a replacement transmission. This is scheduled for next week. I did learn that the transmission is pretty much "sealed" so the lay person cannot even check the fluid level or change the fluid. There is no dipstick.

The transmission was replaced under the 100k mile Powertrain warranty. If you still have that coverage, I would encourage you to keep up the pressure with the dealer.

I found the information available of this forum, invaluable and a great help. Thanks to all the members that post here.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #4
Thanks for the replies!
The Tech got no errors from the ECU but got the shudder when he test drove it. After he reset the ECU it did not shudder. I've gone through the Tranny fluid thread and will change fluid soon. I dont remember anybody(posting)that they solved this issue with fluid change either. I dont understand the "learning" the ECU does after its reset. I'm thinking it maybe a programming error or a single component in the top gear (worn band?) because that's the only gear i can get it to do this. in the range the shudder happens a person driving a manual would have downshifted (due to low speed).
I'm a bit ADHD on this I know.
Is there a way to reprogram the ECU to adjust the shifting?
Oh and my warranty is expired. yeah...

gotta go; somthing shiny over there...
 

·
Registered
Joined
·
6 Posts
Discussion Starter #7
Alright now here is another curveball. I have adjusted my driving habit for the past week. I have shifted into 4 when the Shudder would normally happen and back into D when out of the range. Today I left cruise control on 40MPH in Drive on the slight uphill roads this all started happening on. The Tranny downshifted on its own and DID NOT shudder.
interesting...
I'll keep you all posted.
 

·
Premium Member
Joined
·
2,268 Posts
Alright now here is another curveball. I have adjusted my driving habit for the past week. I have shifted into 4 when the Shudder would normally happen and back into D when out of the range. Today I left cruise control on 40MPH in Drive on the slight uphill roads this all started happening on. The Tranny downshifted on its own and DID NOT shudder.
interesting...
I'll keep you all posted.
Just a SWAG but probably the reason it didn't shudder is because when in cruise the PCM keeps the line pressure higher and torque converter lock-up is switched on and off rather than modulated on and off. So you have less slip and shudder while in driving in cruise control.
 
  • Like
Reactions: ZUNAMI1 and THEH8T

·
Registered
Joined
·
4,824 Posts
Has anyone heard if the Tacoma and 4Runner people are experiencing any of these issues???
 

·
Registered
Joined
·
1,036 Posts
I (still) have the tranny shudder while in overdrive (D) at low revs. And have had for the last 30K miles. I am not in the habit of keeping the FJ in 4 unless I'm out on the open road.
 

·
Registered
Joined
·
130 Posts
I talked to ace converters earlier in the week they said its more common then people realize and that next to sports cars fj's are the most common converters in his shop and he gave me the entire run down on his operation after he cracks the T-converter open. So all that being said and because my truck is a 2011it is goin on the lift saturday so I can over night the T-converter from sw florida to california and back hopfuly sometime next week
 

·
Premium Member
Joined
·
2,268 Posts
I talked to ace converters earlier in the week they said its more common then people realize and that next to sports cars fj's are the most common converters in his shop and he gave me the entire run down on his operation after he cracks the T-converter open. So all that being said and because my truck is a 2011it is goin on the lift saturday so I can over night the T-converter from sw florida to california and back hopfuly sometime next week
He probably made that statement because he specializes in FJ converters. Believe me of all cars on the road the FJ is on the bottom of the list when it comes to torque converter problems. What he will probably find is the converter clutch friction material is glazed from slippage and fluid deterioration. When this happens it's usually an easy fix. Replacing the friction material is all that's necessary. In your case hopefully you are getting more that a clutch disc replacement. Ask about how they furnace braze the fins and if they have to machine the turbine and stator for bigger Torrington bearings? Ask what else they do to make your converter last. Also ask him how much he will charge you if in 2 years the clutch glazes up again. Most performance converter companies will have a set charge for this refresh service.
 

·
Premium Member
Joined
·
2,268 Posts
I (still) have the tranny shudder while in overdrive (D) at low revs. And have had for the last 30K miles. I am not in the habit of keeping the FJ in 4 unless I'm out on the open road.
How's your gas mileage? There's no reason to keep your transmission out of overdrive. Overdrive is there to increase your gas mileage and keep your engine in it's best power band. Your computer does this by watching the load on your engine along with the input and output speeds, temperature, altitude, etc. Now if you're towing or driving in the mountains then keeping your trans in 4th gear is a good idea in many circumstances.
 
  • Like
Reactions: Greenf

·
Registered
Joined
·
1 Posts
Guys, I'm having this same dilemma on my FJ as reported here earlier this year.

I've got the 2007 @ 87,000 miles and drive the FJ as a commuter with ~15K/year. I've noticed the shudder since early March and quit driving it until I could have it checked.

o I had a non-Toyota repair center look at it and they agree it's coming from the transmission/torque converter. They found a similar issue seen on 2005-2009 Tacoma's and gave me a copy of the Toyota Service Bulletin (T-SB-0096-09 Torque Converter Flex Lockup Shudder) to take to a local Toyota dealer as it calls for a flash reprogram on the ECM. (NOT - a transmission replacement first).
o Of course, my local Toyota dealer pointed out - "this doesn't apply to the FJ"... Their $94/hr assesment is that I need the proverbial $392 transmission flush using 15qts of synthetic transmission fluid. That doesn't look like it's benefitted many of the posts I've read so far on this!
-They also hedged with "would probably expect the transmission to need replacement if that doesn't work" - @$2900 + labor ~ $3500-3800!
o Oh, and the dealership has given me the number to the Toyota Customer service hotline 800 331 4331 to let me work out my frustration directly.

Hmmm, seems like it's a KNOWN problem which Toyota is passing onto their customer. Is there any other hope other than looking at a likely transmission replacement?
 

·
Premium Member
Joined
·
2,268 Posts
Guys, I'm having this same dilemma on my FJ as reported here earlier this year.

I've got the 2007 @ 87,000 miles and drive the FJ as a commuter with ~15K/year. I've noticed the shudder since early March and quit driving it until I could have it checked.

o I had a non-Toyota repair center look at it and they agree it's coming from the transmission/torque converter. They found a similar issue seen on 2005-2009 Tacoma's and gave me a copy of the Toyota Service Bulletin (T-SB-0096-09 Torque Converter Flex Lockup Shudder) to take to a local Toyota dealer as it calls for a flash reprogram on the ECM. (NOT - a transmission replacement first).
o Of course, my local Toyota dealer pointed out - "this doesn't apply to the FJ"... Their $94/hr assesment is that I need the proverbial $392 transmission flush using 15qts of synthetic transmission fluid. That doesn't look like it's benefitted many of the posts I've read so far on this!
-They also hedged with "would probably expect the transmission to need replacement if that doesn't work" - @$2900 + labor ~ $3500-3800!
o Oh, and the dealership has given me the number to the Toyota Customer service hotline 800 331 4331 to let me work out my frustration directly.

Hmmm, seems like it's a KNOWN problem which Toyota is passing onto their customer. Is there any other hope other than looking at a likely transmission replacement?
Welcome to the Forum. I have seen several converter shudder problems fixed with a transmission flush so I would try that first. You have nothing to lose. I would normally recommend flushing with a good synthetic oil instead of the Toyota oil but in your case I would let Toyota do the flush in case it doesn't work and if it doesn't work at least you followed their instructions and can proceed with trying to get them to replace your transmission under warranty.
 
  • Like
Reactions: Greenf

·
Registered
Joined
·
1 Posts
I too have a 2007 FJ with a "shudder" problem. Of course the dealer recommends replacing the transmission for $$$$. I have never been off road in this vehicle. Seems to me that there are a lot of FJ's out their with this same problem. Has anyone asked Toyota about a manufacturing defect? Recall maybe?? Guess I'll just keep driving it until tranny goes entirely, then figure out what to do.:mecry:
 

·
Registered
2007 FJ
Joined
·
268 Posts
Why not replace the oil yourself for less than $100 and see if it helps. My 07' has 67k miles. I changed the oil "in case". The stuff was jet-black.

You have little to lose and lots to gain. Oh, and Jimmiee is a transmission specialist, so believe what he says....
 

·
Registered
Joined
·
34 Posts
FYI, I had this issue on my 07 Tacoma 2wd. It is the rear transmission mount. I was out of warranty but purchased the revised mount for $50 I think. It solved the issue in the Tacoma. Here is that TSB T-SB-0132-08. May be an inexpensive thing to try before everything else.
 

·
Registered
Joined
·
2 Posts
FYI, I had same flutter with my 07 FJ. Spoke with a few of my gearhead buddies and consensus was to change fluid before anything else. Mine had ~90,000 and I've never had transmission fluid change.

Well, its been two weeks and the flutter is completely gone! Hopefully it stays that way.....my guess is that it will. NOTE: Transmission guy told me that after time the fluid breaks down and since the trannys of today are so sensitive it causes the problem.

My advice to anyone with flutter? GET THE FLUID CHANGED! Cost was $120 versus thousands for new tranny.
 
1 - 20 of 114 Posts
Top