MTL_4runner

Lee, what gear were you in when it all of a sudden lost power on the highway? 3rd? OD?

In any case hopefully you'll get it torn down and tell us what actually happened.
......cause inquiring minds want to know.

lee

i assume OD... but im not sure, i dont remember.

i will definitely be tearing it apart and hopefully rebuilding it for sale so ill letcha know.

d0ubledown

if youre planning on doing a teardown+rebuild to as new condition, i wouldnt sell it. i'd swap it back into your truck. at least you'll know its rebuilt and good to go, as opposed to running an already used one, which you may or may not know the history, maintenance, condition etc of it.

just my opinion...

Erich_870

Too bad you're on the wrong coast I'd baby mine until you finish my new one for me

Erich

lee

you know thats not a bad idea

if i can get some buddies to help i may just do that.

lee

theres always shipping!

Erich_870

Anyone out there willing to accept my first born in trade for shipping?

Anyone??

Lee, do the rebuild, make a write up, and then I'll copy you

Erich

lee

then i dont get my CASH MONEY for it

hell i dont know how to rebuild it either, gonna have to see whats wrong and get the experience of a few of my friends together and see whats up.

sharrack

Just for giggles, I got a quote from a tranny place in Vegas that ships their rebuilt units.
Delivered to my door in Phoenix with transfer case and 3 yr warranty.
1695.00 Includes pick up of core.
Kenny >S

lee

WITH tc? thats a good price then

midiwall

Lee's got a key question...

When I babbled back here about the types of slipping, the "snap" symptom can be from the torque converter. It's "possible" that a slipping tranny only needs a new tc, and not a rebuild.

lee

took the bad transmission to my friends garage and we opened it up.

OK so first we took off the bell housing and the rear housing and removed the torque converter.

as you can see there were metal shavings all over:






look how much the magnets in the pan attracted:



the filter...


then we got to the overdrive planetary gearset:



theres the problem... the source of all the metal:






broken thrust washers...



shavings everywhere..



took my anger out on it with a sledge hammer







my friend derek made a good observation:

"I bet the main failure was from the thrust washers which allowed the overdrive planetary to move front to back in the casing."

Fink

Awesome pics man...that will really help out if other people have this problem.

Nice work as always lee!

Fink

bamachem

wow. i heard that the weakness for the 01/02 A340F's was the planetary gears. now we know. seems like it's a fairly common thing in the Tundras with the V8 Power.

Erich_870

I guess there's no chance of getting your rebuild now

That is cool to see the inside like that.

I look forward to seeing where you find the best place for a replacement. Mine did the cold weather "no-go" again yesterday and I tested it to see if it was a rear break drum sticking. I'm not that lucky.

I wonder if it is something occasionally blocking the filter, but its just a guess.

Whatever causes my stalling is bypassed when I shift down to 1st gear. I don't know why that would be, since I assume the transmission would already be in 1st gear, but it gives me hope that I could flush it and possible remove the culprit.

Erich

calrockx

really? this is a known issue?
okay, not doubting ya, i guess i just haven't read much about it. any handy links available to more on this? just thought i'd ask before i search all over

bamachem

search tundra solutions for "planetary gears"

http://www.tundrasolutions.com/forum...-failure-poll/

http://www.tundrasolutions.com/forum...our-automatic/

http://www.tundrasolutions.com/forum...id-yours-blow/

http://www.tundrasolutions.com/forum...-not-yet-been/

http://www.tundrasolutions.com/forum...matic-4-speed/

http://www.tundrasolutions.com/forum...-limited-just/

i think you have to be a member to get to the forums, but reading these will be worth it.

if you have multimode (99/00 limiteds and all 01/02 4WD's) then you could have this issue since you would have the same A340F transmission as the 00/01/02 Tundras. however, it seems to be the 01/02 runners and especially the 00/01/02 Tundras. i guess the 4.7L power in addition to towing is what makes the issue more pronounced in the Tundras, but it was supposedly due mainly to a design change in those applications. that would explain why the 99/00 runners don't see the issue, but the 00 tundra does, and then the 01/02 runners are also seeing the issues.

CJM

Lucas stop slip..drain out a bit if you get any kinda slipping and pour the bottle in..it works..

lee

i have a new one in.

it was out of an 02 with 80K miles... it drives completely different than my old one ever did

bamachem

ummmmm, yeah, if you're having clutch-pack slippage, then yeah, maybe it would.

this is completely different. this was a PLANETARY GEAR FAILURE.