ya'll might wanna try this!! So my mom's 2k maxima now has 208k miles on it and her automatic transmission was slipping pretty bad on the 1-2 shift....well my grandfather recommended this stuff to me called B-12 Chemtool (in the same bottle as seafoam; found at your local auto parts store)....it's basically just like seafoam...well i poured a bottle of that stuff in my mom's transmission and drove it for a half hour...then i got home and did a full fluid flush and when i went out for a drive again, the slip was GONE! This has been going on for well over a year and probably 50k miles and it disappeared just like that! apparantly there was quite a bit of build-up inside the transmission and this stuff got it out just like that! If ya'll are having the same problem, i HIGHLY recommend doing this...it's extremely inexpensive, fast, and easy to do and it makes a world of difference.

 

wow...I've seen the b12 chemtool at all the automotive stores...didn't know it was that effective...nice find! since you said it's the same as seafoam, theres a type of seafoam called Seafoam Trans Tune...might be worth checking it out..

 

There is one for Seafoam too... and if the normal Seafoam works like magic.. then It might work fine too

 

yeah, it sounds like they all do the same thing...and they're all around the same price, but MAN did this stuff make a difference....

 

r u sure the tranny flush wasnt the reason the transmission stopped slipping? regardless i think im gonna pick some of this stuff up when i flush my tranny.

 

well her transmission was flushed around 12k miles ago, so i don't think that would do the trick, would it?

 

Very interesting... I just did a total tranny flush and added in the Lucas Oil stop slip stuff. I seems to work and the shifts are a little sharper. I'll have to check this stuff out. Thanks for the info...

 

speaking of auto trannies...my mom's 05 toyota camry with only 5k miles automagic seems to lag like hell in the 1-2 shift...this only happens if you really get on the gas pedal...I'd say anything below 50% throttle, the tranny shifts fine from 1-2...but above that, the 1-2 shift lags...it doesn't necessarily slip...it just lags like hell...i wonder if I should switch her over to synthetic ATF and the seafoam flush?

 

Hmm... B-12 Chemtool is a pretty strong solvent (toluene, acetone)... I don't know, man... I would be scared of dumping that stuff in a tranny... Nice it worked for you though.

 

my wife drives an 05 Camry and it is the same thing.... so you are Ok with it

 

is the camry a v6? i've read that the v6 transmission have a slight lags on the camry and highlander. i also felt this when i test drove a camry v6 before i got the maxima. that was one reason i didn't get the camry because of the lagging feeling and handles like poo poo =/

 

my mom's 2k maxima now has 208k miles


Wow...She drives a lot

 

All that sounds good, and i think i will do it too.
How many miles did your mom have when her tranny started sliping from 1st to 2nd gear.
THANKS

shift_confidence

 

Good stuff, Im at close to 141k and will pick up a bottle when I change my fluid

 

Maybe the flush helped the most.

 

Hey guys will this work if I have a shop "flush" my auto tranny? I know that they "recycle" the fluid but i was wonderin I needed to do this myself....

 

B-12 Chemtool is what people use to clean carburetors that's been fouled up by carbon buildup, that stuff is pretty strong as GimmeTorq brought up. It might eat away some of the seals in the tranny, so I would be careful about using it.
The best thing to do for keeping the tranny from slipping IMO is to be dilegent about checking your tranny fluid and change it out when it starts going bad.

 

No it's a 4 cylinder model...I wonder if theres a TSB for it...I needa check

 

I take out the VB and clean it when i do a flush... this would help my A32.....

But I guess now, as Americans, we can just sit back and pour a bottle in and be lazy ..

 

I have heard horror stories from some people who just flushed the tranny and next thing it went out. I would be careful doing this if you have not changed/flushed the tranny for a long time...Some of that build-up, i have read, will sometimes help the tranny

 

2k2 3.5L w/ 88k miles.

I put in AutoRX transmission cleaner. Drove for 1700 miles and then did a complete flush to Mobil1 synthetic transmission fluid. I don't notice smoother shifts or anything like that, but the car was shifting fine before I flushed it. I've always had luck with AutoRX products.

 

Yes, I support this opinion. When I worked in a shop we had a few customers come back after the tranny flush and the tranny was bust. Though all of those were people that had never changed the fluid in 100K or more and then simply shocked the tranny with the flush...

With slipping and old trannies I had good experience with Lucas Oil tranny helper. It is about 1 qt and helps the shifting and reduces slipping. The thing is thick as a glue...

 

on that!

Your mom prolly doesn't want to hear this, but changing the ATF after 200k is a really bad idea unless you have been doing it at like 50k intervals.

ATF in its self is a pretty strong solvent and after that many miles it will flush out stuff that has been keeping seals and bands lubricated. I wouldn't flush my tranny after 100k (if its never been flushed before).

I've got $50 on the tranny starting to slip within 6 months

And the smoother shifts are undoubtedly a result of the new ATF and not the Chemtool or whatever.

 

but if that were true, we would have noticed it before summer when we got her transmission flushed (for a crapload of money, of course, cuz we brought it in to the shop) but we didn't....