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Anybody with new(er) 8SP Toyota

bigi

bigi

Platinum Member
Have read in Toyota forums that new 8 speed AT introduced in 2016/17/18 has been problematic. Several reports are in that it basically craps out in new Siennas and Highlanders much more often than old 6 speed.

Can anyone address this? Confirm?
 
Yep, I was surprised too. No, it ain't ZF9 bad but apparently more pronounced than 6 speed. Let me look up some posts...
 
Consumer Reports says its not as smooth as the 6sp. I have one and it feels slow to down shift, otherwise so far so good. I'm having a party when she creaks past 1k miles.
 
Just read more, eek! At my rate of mileage it will fail way after warranty. The only thing that will save me is a recall.
 
I hope they fix this ASAP if there really is an issue. There’s a good chance my next vehicle will be a 2019 RAV4 adventure with cloth seats and an 8 speed.
 
Which 8sp you talking about? The ones on the rwd Lexus vehicles of late have not had many issues on the Lexus message board I frequent
 
I haven’t heard of reliability issues, but I have heard numerous issues with clunky/slow to shift (highlander, sienna, Tacoma). Not sure if RWD unit in Tacoma is similar to FWD unit in highlander/sienna...but the fact I am hearing complaints in all 3 make me think they are related.
 
PricklyPete said:
I haven’t heard of reliability issues, but I have heard numerous issues with clunky/slow to shift (highlander, sienna, Tacoma). Not sure if RWD unit in Tacoma is similar to FWD unit in highlander/sienna...but the fact I am hearing complaints in all 3 make me think they are related.
Click to expand...

I’ve read some things about poor shift quality at slow speeds on the 8-speed on the Camry, but I don’t recall noticing anything out of the ordinary on my test drives. The thing I loved was having a 4 cylinder engine loafing at about 1600rpm and getting great mileage at high speeds on the interstate.
 
Herr Kutz said:
I’ve read some things about poor shift quality at slow speeds on the 8-speed on the Camry, but I don’t recall noticing anything out of the ordinary on my test drives. The thing I loved was having a 4 cylinder engine loafing at about 1600rpm and getting great mileage at high speeds on the interstate.
Click to expand...

Yep, makes a huge difference, keeping RPM down. Autos these days often get better mileage than manuals in large part because they have taller top gear options. It's not unusual to find most 4 cylinders at 3000+ at highway speeds.

I'm doing an engine swap and re-gearing at the same time, so I can stay at ~1500rpm in 6th gear with a manual.
 
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