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2010 Transmission Slipping... Here We Go Again

1953 Views 28 Replies 10 Participants Last post by  Mistermike87
2010 5AT Base 4WD 120k miles bone stock - for now.

Getting on the freeway and getting up to speed, it hangs up around 2-3 or 3-4 (can't tell) for a second or two, hesitates, and then drops in to gear. It does not knock or jerk hard. Just .. slips in. This has happened twice now in the last week. And this is the first week out of 1k miles it has happened. ALL other speeds and scenarios (coming to stop, from a stop, slow street driving, etc.) it shifts smoothly and quietly. Honeslty shifts like a damn dream compared to my last ride.

What I know:
Goin through this forum inside and out, I have rarely seen anyone talk about a trans fail. This is great. However, I've read lots of talk about checking levels and checking them properly. I do not need knowledge on procedure , i've read up and have threads and videos saved. Thank you. However, I would like some feedback on anyones experience with a similar issue. If it sounds like the beginning of catastrophic failure, If this is cause of ATF being low, certain solenoids going out, etc. etc.

I bought this truck 1k miles ago and have a good idea of the service history of the vehicle. I haven't checked the trans level yet but only because I have records that the transmission was serviced 2 years ago. For what? That's the question I do not have an answer to. Was fluid exchanged? Was it flushed? Reman? I wish i knew.

I've had my fair share of trans problems with previous cars. So much so that I'm pretty sure I have PTSD from having to rebuild my last 2 rides:
02 Rav4 4wd - it was a long process that started with drain and fills, replacing solenoids, replacing ecu, and then finally emptied my pockets and rebuilt
99 Chevy S10 - I was a kid and made too many poor decisions; donuts, pedal to the metal, etc. Eventually blew it out on a long trip to Vegas.

Because of this I literally have money saved for big repairs, especially transmission issues up to a full rebuild if necessary. I bought the FJ knowing that this transmission is closer to bullet proof than most others, but knowing you're always rolling the dice on a used vehicle, I guess snake eyes may be on the horizon with this roll. LET'S HOPE IT'S SEVENS!!
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Went to local yota stealership yesterday to grab some crush washers. I was talking to the parts guy for awhile about my issue. He seemed pretty shocked. He said, "in my 18 years working here, I've never seen anyone buy a reman transmission for the FJ." and so I thought to myself, well the FJ isn't the only platform the A750F trans was used on, but hey.. I'll take that as a good sign? :ROFLMAO:

For what it's worth, this guy is extremely knowledgable and helped me a ton with my 02 Rav4 a few years ago. Some other dealerships I've been to have parts guys that have no clue what you're talking about. I went to pick up some hardware for a previous trans awhile ago and the parts guy was looking at a blown up diagram of the transfer case and not the transmission. :unsure: And I'm like, let me see your screen man.. yah that's not the transmission ... "ohhh yah you're right". lol
The same transmission is/was used in the 4 runner as well? I dont' hear about trans. issues in them either
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