I will be changing fluid on a friends 2000 Rodeo 1/26 as his trans is
slipping in 1st and the fluid has not been changed for 50K or more, he's
not sure! I thought this would be the cheapest thing to try 1st before
he takes it to a trans specialist.

Just curious if anyone has tried this though I have not found it on search.

Can you disconnect the suction side of the cooler and pump out x amount of fluid using the trans pump, then using the suction in the line to vacuum in the same amount. Do this until you have cycled all the old fluid out and vacuumed in the new fluid. Then top off using the normal procedure with the fill plug! Obviously you would have to clamp off the pressure side (or cap of the cooler line) while vacuuming in the fluid on the suction side!

Just an idea I had that might make it less of a PITA. I would appreciate hearing all opinions! I'm not sure if there would be enough suction in the line though!

TIA for all input =).
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Probably not a good idea. Too much chance of things to go wrong. Also with gettin all fresh fluid at once it might be more likely for the fresh stuff to clean out any crud too quickly and block passages. Thats the same reason doing a flush isnt good. There are a lot of very small passages that can clog easily and doing a flush will usually kill the trans if it hasnt been kept up with for service.

Most common is to drop both pans, clean them out, clean/replace the filter, then refill. That will replace about half the fluid. Do it about every 15k miles to slowly clean it out and have some fresh fluid in it.

You also might want to remove the Range selector switch and clean it.

Thanks Gizmo42,

Did all that for a friend and saved him a couple grand at least for a transmission. The gaskets where a real bitch to put it mildly. It was like chipping concrete! Now it is smooth as glass when shifting. He still has some serious leaking going on at the shift lever input shaft( not sure if that is the right terminology) where the range sensor mounts and on the opposite side where it looks like a big seal or some type of plug (looks like a snap ring holds it in place), it is leaking very badly. Is that something that can easily be replaced, other wise he will need to add fluid every 2-3 weeks?

Thanks much for the help!

pedro62
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Sounds like the accumulator piston cover. Very common place for them to leak.

Here is a post with some tips about fixing it..

http://forum.planetisuzoo.com/viewtopic.php?t=16201

Your right again!

Thanks for all the help!
Pete

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Edited by: pedro62