transmission shift?

i have a 2006 automatic tacoma and when i come to a stop what i think is the transmission shifts at least once but sometimes it does it twice. anybody have any idea? I've heard of this happening to other tacoma's while slowing down but not at a complete stop. thanks for any help

 

I've only had the truck a few months. Not under warranty anymore. Should I take it in and get the transmission serviced? It does have about 103,000 on it

 

You obviously have not done very much research, and you have a pretty low post count, and I have no clue if you even introduced yourself to the forum, so don't expect a flood of responses.

Read this thread, it may help.

https://www.tacomaworld.com/threads...e-get-it-out-of-your-transmission-now.331521/

 

I may have introduced myself I don't know. Didn't know I needed a rep to get people to respond to a question but thanks for the link and yes I looked just not for what you
Posted

 

You shouldn't need a rep, but the subject of your post has beaten around in a great many threads, so the more experienced people ignore it, and with a smaller post count not that many people will know you and be willing to jump in.
The phrase I remember from the past is 'lurch'. Comes from one of two sources, and it sounds like you have both. First source is the transmission downshifting, second is the yoke sliding from axle wrap. When you accelerate the rear axle rotates due to the torque, this rotation allows the yoke to extend. Since the splines do not have a grease fitting, and not everyone moves the bellows and greases, the splines get rusty or dirty, and kind of jump back into the home position at a stop. Add grease, and they will slide more easily.
As for the downshift, it is a combination of tranny fluid and driving style. Cold fluid is thicker and may react differently, and aged fluid is sticky.

 

Cool! And thank you. I will search on how to do the grease and it's time I had the transmission serviced too. I really appreciate the time and help and tips!

 

Don't feel too bad....I have a 2015 with about 800 miles and I get the thud too. Most likely axel wrap though.

 

After you're done, post an update here, letting us know what you did, and the results, and toss in a picture or two to aid in the explanation.

 

Will do. Probably gonna do it next weekend

 

sorry on the delay of the follow up. First thing i did towards the problem was i had the transmission fluid changed mainly because i just bought the truck and it was at about 105,000 miles. and ever since then the problem has actually went away. thanks for the help and suggestions

 

Thanks for the follow-up, everyone benefits from closing the circle. Great to hear that your problem was resolved beneficially.

 

Well of course not to long after I posted the update the problem comes back. Not nearly as bad as before but it's still there. Guess I will have to look into the axle wrap solution

 

Don't ya just hate that.
Out of curiosity did you do the full 10 qt, disconnect the line to the radiator flush?

 

I took it to the shop and they changed 10 quarts but not sure about the flush. I know they dropped the pan and changed the filter

 

That should have cleaned it up pretty well. I need to lube the yoke splines as well. I'll be using the 'red and tacky' from lucas I believe.