My rm250 smokes like crazy until all the transmission fluid is burnt up. i just totally rebuilt it and dont know why this is happening

when your fluid starts to turn dark and you'll smell the fluid,you will know if it's burnt,this happens when the bands gets loose and out of adjustment,as your coming to a stop with your foot off the accelerator pedal and the vehicle starts to slow down the band will help the transmission to slow as well as the vehicle,but if the bands are loose and not tight enough,your clutch's will try to slow the vehicle,when this happens the clutch's will not hold and start to slip,and this will burn the clutch's as well as the fluid,after this keeps happening the clutch's will start to slip when you start to take off from a stop,and will burn the clutch's even more,now your in need of a transmission rebuilt,so when you notice the fluid starting to smell and turn from red to dark red or black,the best thing to do is take it to a transmission shop and have the fluid and filter replaced,and have them adjust the bands,if you try this at home the fluid change should not be a problem but the band adjustment is a different story,if you don't follow step by step and tighten the band's too tight you can break the band's and that will make a for sure thing that you will need a rebuild,so just because the fluid gets burnt doesn't mean you need a rebuild unless you have driven it to long.

Your transmission has failed & needs to come
out & be rebuilt or replaced

The white smoke I don't know about,
unless your air conditioning failed as well

Transmission is done,burnt up,you know that
Has to come out & be rebuilt

I used to own a trans repair shop

That said,all I needed was the dark fluid & doing anything
for a month

Your trans needs to be rebuilt,no other fix. It was over
overheated for any number of reasons,you didn't
recognize how it perfromed & drove until the clutches
slipped & burn't the fluid

The shop you went to was totally wrong
The first test is the fluid,it was burnt,game over
no need for codes etc,

Road test next

I never use any additives,
except Lubegard Products
that professional shops use
They are the only thing in a bottle I have found in 50
years that actually does something

The $600, was what you would call a rip off
That was removing & cleaning the valve body
Not on a burnt unit,common sense

There is only one reason your trans failed in 7 years
No fluid changes every 3 years,your steering rack will
be next. Change all fluids

There is no replacing
There is no new---
New only comes one time
off the assy line

Your choices --rebuild yours or install a factory rebuilt (reman
or Certa)

Hi,
That looks like a burnt out clutches.
Check the fluid in our transmission, if it is in minimum level, add up to the max if needed, smell the fluid if it smell like burned oil that means clutches gave away and needed replacement.
You have to bring your car to the nearest garage to assess the damage to your transmission and ask them how much your gonna spend for the repair.
You have a choice for a rebuilt, came from junkyard, and do a total repair/overhaul for your transmission. Whichever that makes you save some money.

Hope that helps!

You will have to have the transmission removed
and totally rebuilt.

It is what is called, a burnt unit (slipping--your done)

if it has ever been driven low on tranmission fluid this could be a bad sign, check the fluid level, assuming it is and has been full this could mean your internal clutches are worn, and tranmission will have to be rebuilt or replaced, the color and scent of the fluid are good indicators of burnt clutches, if it is more brown than red, and smells burnt...thats bad news

More then likely you are experiencing a transmission problem, an internal problem that may need to be repaired by either having your transmission rebuilt by a reputable transmission overhaul shop or replaced by a transmission that has already been rebuilt and in stock for your vehicle.
Indications of this type of problems are, burnt transmission fluid a burnt smell as well as a burnt coloration of the fliud(not bright red like it is in the can) and a least likely problem that may require the transmission being serviced by means of a transmission fluid service change and believe it or not a transmission filter replacement, at times these filters clog with dirty fluid and debri from the transmission clutches,etc, and create a no go condition in the hydraulic workings of an automatic transmission.
Replacement transmission costs can be as high as $1500.00/rebuilding of your transmision depending on what "hard" parts need to be replaced can start at $800.00 and go upwards of $1500.00.
A transmission service can be the least expensive of the evils starting from $49.95 to upwards of $100.00 if the shop flushes the transmission by means of a hi-tech flush machine attachment.

It sounds like the bands inside the transmission are burnt. one way to check is pull you trans dipstick and smell the fluid and see if it smells burnt and the fluid should also be bright red. i have burnt a few trans myself and they did that.lol

It would appear that the transmission is worn out! The transmission fluid is supposed to be red in color with no bad odor about it. When it turns brown & has a burnt smell to it -it means the fluid was low at some point and it got real hot (with an fluid & filter change it could be saved).
When it turns black it means that the fluid now is usually past the saving point as is contaminated with lots of metal filings in it. If you change the fluid & the filter at this point you've got a 50 /50 shot at maybe getting it functioning again -at least for a short while.
I personally would try the fluid & filter change if just to get it running again (although it may have some issues) although the real answer is to start looking for a new vehicle (due to it's age) or have the transmission rebuilt if the car has no other major problems and you think it would be worth it! BTW a rebuilt transmission goes for about $1200 which is probably more than the car is worth.