Driving the Land Cruiser around today, I noticed something I didn't notice before; when I stab the gas, the engine revs, but the car pretty much maintains it's current rate of acceleration. Now, I know it's a huge underpowered thing and acceleration isn't a strong suite, but this feels abnormal.
So, great GRM repository, what do we think? Torque converter? Kickdown cable? Transmission dying? The TLC community suggests a fluid change, but if that doesn't work you're borked. I would not like to be borked.
drop the pan, remove junk, look for metal bits. Replace with new gasket and Lucas transmission additive + replace the fluid that came out with the pan, but leave some old fluid in there....avoid getting borked.
don't forget the filter. very important.
If the takeoff is lacking, converter.
If driving, typically band/clutches. But a plugged up filter can cause it too.
I agree though, drop the pan and have a look. But be prepared to just put it back on, refill it with the old fluid and push it over a cliff or into a river.
Brian
just another one saying check the pan and change the fluid.
Ranger50 wrote:
If the takeoff is lacking, converter.
If driving, typically band/clutches. But a plugged up filter can cause it too.
I agree though, drop the pan and have a look. But be prepared to just put it back on, refill it with the old fluid and push it over a cliff or into a river.
Brian
FUUUUUU. I just bought new tires for it, too!
Luke
SuperDork
8/29/10 8:59 p.m.
My Toyota Crown started slipping on me a couple of days ago. Turns out it was just running low on fluid. After adding about 1.5L of ATF, she's now shifting smooth as ever.
But I take it you've already checked the trans fluid level 
.
buy a 2nd transmission to rebuild, you might even get one that is slipping for a deal.
Wally
SuperDork
8/31/10 12:25 a.m.
After you figure out how to rebuild your slushbox you can work on perfecting time travel. I opened one and it was like Pandora's box. There was no way to get all the evil bits back inside. Every so often Mom will complain because she got a little spring or something caught in her vaccum. (If you do ignore my advice and try anyway don't do it in you parent's living room)
I consider myself a reasonably intelligent man, but automatic transmissions confuse the hell out of me. There's no way that sucker is getting cracked open more than dropping the pan.
Update: adjusting the kickdown cable seems to have greatly improved my issue. Next week: fluid and filter change!
Yeah, I have wasted a lot of money and time trying to rebuild an A4LD...still doesn't work.
Osterkraut wrote:
I consider myself a reasonably intelligent man, but automatic transmissions confuse the hell out of me. There's no way that sucker is getting cracked open more than dropping the pan.
Update: adjusting the kickdown cable seems to have greatly improved my issue. Next week: fluid and filter change!
Thanks Osterkraut, for the suggestion. Hope it would resolve my problem and save the time too.
Auto Scan Tools
I have NEVER seen a Toilet, errr Toyota, automatic trans work again properly after being rebuilt. This even applies to dealerships that you take it to to have it diagnosed to be fixed after rebuilding it. Dealer said, "Put a new trans in it." So that speaks volumes to me....
Brian
Years ago, I worked at a Buick dealer. A lot of cars were traded in because of transmission "failure". I fixed a lot of them with a simple fluid and filter change.
Then i have fixed some with a dose of "Mystery Oil".
The mechanical parts of the transmission aren't too bad to work on but the valve body is a whole different thing.
oldtin
HalfDork
8/31/10 10:25 a.m.
Just in case that didn't fix it - the answer is H55F or NV4500
oldtin wrote:
Just in case that didn't fix it - the answer is H55F or NV4500
Well if it keeps getting cranky the answer is a $200 used 440F, then in the spring a SBC swap!
