99 ply voyager transmission problems

I am looking for any input on the transmission in my 99 voyager (68000
miles) with a 2.4L Inline 4, 3 speed engine. The gears started acting up,
i took it in for a radiator and transmission flush. They pulled the trans
dipstick and it was a milky pink color. Opened the radiator-same milky
pink color. they said that moisutre was getting in somewhere also-no leaks
found. They said it looked like radiator was cracked. Took it it to get
fixed-new radiator (was cracked) and both coolent and trans flushed 2x. A
few days later trans started acting up. opened hood, pulled trans dipstick
out, back to cloudy color. Opened the plastic coolent container-very
dirty. opened actual radiator-was green and clean but noticed dots of red
trans fluid floating. Neigbor had me turn on van and run and he told me
that it coolent wasnt turning like is should. Any help or input-the
radiator and flushes where done by a mechanic friend of a friend and dont
want to go back to them but dont want to get taken for a ride either.

 

There's no way to get all that material totally out, so it's hard to say
whether you have a leak still, or whether you're seeing effects of the old
leak. I'm guessing the latter, which is good, but I don't know any easy way
to flush your transmission better. If you want to be sure, you can isolate
the tranny and the coolant so they can't touch. You can ditch your
water-cooled transmission cooler and replace it with an air-cooled one.
Those cost about $50 or $100 dollars, and they're very common. You should be
able to get one at any auto parts store, even a lousy one.