Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Toyota Avalon 2005+ Transmission Questions



  • patpat Posts: 10,421
    If you can get it converted to a jpeg, you can post it on your CarSpace page.
  • niteoneniteone Posts: 41
    I would love to, the PDF is at that location I addressed in my post but you have to sign up for the forum and I'm at work right now with limited internet time.
  • niteoneniteone Posts: 41
    2005 owners... don't feel left out!

    You get one too! But you also get exhaust manifolds and o2 sensor, all under warranty.
  • bailboybailboy Posts: 20
    Of course I decided I had enough of the transmission issues and traded the Avalon figures they come out with a fix......I wonder if it actually works.
  • dickbayerdickbayer Posts: 1
    My 07 Avalon had a shift lag problem in lower gears. After a lot of complaining on my part a Toyota representative found a fix in the June 6, 2007 Technical Service Bulletin. They reprogrammed the computer and now my Avalon shifts properly.
    Refer to "ECM Calibration: Enhancement to shifting performance and smoothness. OP CODE DESCRIPTION TIME OFT T1 T2 - EG7023 Recalibrate ECM (PCM)"
    The dealer will not fix this problem unless the customer title
  • yotaowneryotaowner Posts: 14
    I'm a 06 Avalon Ltd owner. Last Ocotber I posted my near death experience with this car as I merged onto a major highway in NJ. RPM surge, hesiation, transmission surge...all of which forced me off the road to avoid collision. After this incident I called Toyo in CA and opened complaint file, brought the car in for testing and filed a report with NHSTA (acronym order ??). Toyo tech told me that the car was operating normally and nothing was wrong (sound familiar ??).

    Recently became aware of the TSB and called Toyo in CA to find out why I was not contacted about the "fix" . After rambling on that this was not a recall, they urged me to bring back to dealer for another "look". I dropped it off at the dealer informing him of the TSB and my discussion with Toyo central. Service tells me there is no guarantee that the TSB will work. When I questioned this he said "other work" may need to be done. Phone call 1 at 1 day post drop off: "TSB didn't work, need to replace electronic valve body in transmission" "This involves dropping the pan, replacing the valve and running diagnostic". "We need car for another day". Phone call 2 2 days post drop off: "Replacement of the electronic valve didn't work, may need to replace transmission". Phone call 3 to Toyo central: "We need to open new complaint file" I refuse, stating that it is the same problem as before which was never fixed. Phone call 4 from dealer: "Transmission needs to be replaced...sorry"

    Here it is in a nutshell: If it smells like, tastes like and feels like crap...then it's crap. So to all of you who have placed wooden blocks under the accelrator or hypothesized about the impact of Newtonian physics on the transmission performance...good luck. I now have my $34,000 car with 21k miles undergoing a transmision transplant, performed by 19 year-old DeVry Tech graduates. I'll be sure to ask for the can of spare nuts and bolts when I pick it up. I only ask that the car run for another 11 miles, that's how far it is to the nearest BMW dealer.

    Good luck.
  • ski1003ski1003 Posts: 41
    Well after 21/2 years I finally have my 2005 Avalon shifting ok. I mentioned to my dealer about the TSB that was mentioned here. They installed the changes (on the 2005 it also needed new exhaust manifold). The car has is finally not down shifting and other funny shifting quirks. They will not address this issue unless you complain about it.
  • niteoneniteone Posts: 41
    well, I just had this done and according to my wife, it works like a charm....she stated it shifts much smoother with no hesitation at all.....

    glad I did I can't wait to get back home and give it a go myself.

    btw, mine is a 2006 xls.
  • Glad to hear this fix has worked for your wife.

    Anyone else who has had it done, please continue reporting on your results.

    A similar TSB hasn't been issued by Toyota Canada so far. Has anyone tried to have this fix done in Canada based on the USA TSB?
  • 44394439 Posts: 21
    I took my 05 Limited in for the Transmission Fix per the TSB. The only issue I really had w/my car is the rolling stop acceleration issue. It would not happen all the time but it was happening none the less. My dealer told me the first process for the TSB is to reflash the ECM to see if this takes care of the problem. I asked what about the Oxygen sensors, exhaust manifolds, etc.......he stated that comes later if the reflashing doesn't work. I got my car back the same day and now it's totally messed up. It shifts very hard from 2nd to 3rd and 3rd to 4th. The RPMs will jump 1,000 before there is a hard shift. When attempting to pass cars the car refused to downshift instantly. The RPMs went to about 5,000 and then there was a hard downshift. None of these problems occurred before I had my reflash. I took the car back and they said I needed to drive it for a 100 miles before they would take my word that it was shifting erractic. I took it back to them and long story short, they will open a case tomorrow and will contact Toyota to see what had happened and where to proceed. The tech stated he had never seen a vehicle act like mine when it needed to shift. If your car shifts smooth already and you have the lag when coming to stops and such I don't know if I'd take it in quite yet. The tech stated that Toyota will be coming out in about a month for that fix. I'll keep you all informed.
  • gohawaiiangohawaiian Posts: 76
    Sorry to hear about your problems, but appreciate your helpful comments & advice. Say again: what is Toyota coming out with in another month - a fix for the first fix? (Are they serious?) Is it possible (even likely) that not all dealership service depts. are equal when faced with what seems to be a fairly complicated fix like this one, and perhaps that could, in part, explain why different owners are reporting different results after their TSB fix?
  • popsavalonpopsavalon Posts: 231
    After reading the various posts about the TSB EG029-07 transmission fix, I took my '07 Avalon to my dealer and inquired about installing the update. The Lead Technician said he could download the update immediately and it would take about 15 minutes max. I actually watched him hook up the computer and run the program. He advised me to run thru a low throttle start, medium throttle start, and then a full throttle start as I left the dealership to let the trans. adjust to the new program. The update definitely fixed the quirky low speed shifting that I was having.

    Apparently there are other issues with '05 models, but the update to my '07 was quick ,simple, and worked perfectly.
  • byron2byron2 Posts: 12
    Had it done about a month ago at the local dealer where we bought the car. Huge improvement. No more initial transmission "slip" during rolling acceleration and the shift themselves are MUCH smoother. Highly recommended.

    My thanks to those on this forum who made us all aware of the TSBs as soon as they came out and even provided links to them. My dealer, which is a fairly savvy group of individuals, did not even know of the TSB's release until I told him, and in fact I had to give him a copy to make sure he could get it done. Very much appreciated.
  • After reading about the TSB for 05 Avy's I took mine in to be looked and and they ordered the parts, which only took a week. I made my service appointment (it's a 4 hour job) and had the wok completed while at work.

    I had noticed only a limited low speed acceleration slip, and not all the time, but I did notice it once in a while. What I was really hoping for was a fix for the way the laser cruise control accelerated after a slow down and then subsequent speed up. It really slammed you in you seat because it seemed to want to get back to speed instantly. In heavy highway traffic it was a pain.

    I am very pleased with the fix. (I saw the order for the parts over $1300.00 and then 4 hours of labor so Toyota is making a real commitment to fixing this.) I have taken my car on the highway and the laser cruise now works like a dream, acceleration is smooth as silk. I've also noticed the overall shifting is so smooth now I actually had to look to the Tach to tell when the shift points are, it was always smooth and quiet but now there is virtually no perceptible change when shifts occur except the tach change.

    I would recommend the fix for anyone that feels they have the hesitation and/or the laser cruise control dragster type acceleration.

    I spoke with the technician that did the repair and he said it was the 2nd one he had done (he is the shop expert and is the only one doing this fix right now) and it is fairly straight forward and other than time consuming not difficult, so it is not something a good service department should have trouble with.

    I mentioned that I had read other folks have gone onto their dealers and all they do is flash the ECU and he shook his head and said that will only result in worse problems on the 05 since the manifold with the old Oxygen sensors will not give the new program the correct readings and will cause worse shifting.
  • user777user777 Posts: 3,341
    it might be helpful if you provided any TSB number and/or parts / actions recorded on you service paperwork to help others.
  • Refer to Message # 339 by Niteone written on 6/25/07.

    A link to the TSB and answers all your questions on parts, etc. :)
  • bigmike2bigmike2 Posts: 96
    For future reference, you can search NHTSA's office of defect investigations for complaints, recalls, and TSB's."

    I am considering getting a 2007 Avalon and came across a number of complaints and the TSB (not much of a description, but enough to know what it was) without finding this discussion first.

    If you do have serious problems, please report them to the Office of Defect Investigations. I have no doubt that the complaints to NHTSA pressured Toyota into issuing the fix.

    BTW, is there a discussion group about the Avalon headlights? Saw a few complaints about them. Similar to the Azera complaints.">link title
  • patpat Posts: 10,421
    We don't have a discussion about Avalon headlights at this time, but you are welcome to start one. Go to the group page and you'll see the Add Discussion link on the right just over the list.
  • 2005 av with 24,000miles. Had no big transmission problems other than slow speed slight hesitation. Took it in today in Orland Park Illinois. Service department wasn't aware TSB, but agreed it would be done. Parts come in this week and will fix soon as I bring it it. No hassles, no argument. Great working with this dealer. Going East in a couple of weeks. I will get back with results. :)
  • Went East before the parts came in on my 2005 Avalon. When I got back had it done and everything is smoother. Slow speed hesitation is 99% gone. Much better on rolling stops. Transmission seems to get to 1st. gear better on a rolling start. Have about 200 miles since having it done. It does make a difference. Orland Park Il. dealer was great. Even told me I needed the steering column one done also!! They said it was clicking, but neither my wife nor I could hear it.
Sign In or Register to comment.