So, i've got an interesting issue... i have transmission fluid in my coolant! I got to looking, and there's no coolant in the trans, ruling out the transmission cooler. Friend of mine suggested replacing the vacuum modulator, so i swapped it out, and BANG, two weeks later car's shifting crappy low as hell on trans fluid, and it's all in the radiator again! Turning my antifreeze into pepto-bismolish solution! It's got me stumped, what the hell is going on? Even checked the vacuum lines from the modulator and theyre like new! GRRRR
There is likely more pressure in the trans line forcing it one way into the coolant, and not letting the coolant into the trans lines. It would have to be the trans cooler that is built into the radiator. Unless it is some other fluid getting into the radiator, like oil. Maybe the light brown oil is looking red when it mixes with the coolant. That would be my better guess.
being he is loosing ...trans. fluid...i would go with the...trans. cooler... in the radiator... JMO ...try running a cooler on the outside ... ...
You need a new radiator ... the wall between the engine coolant and transmission coolant has rotted out so they are mixing ...
Just wanted to check all areas...I lose trans fluid all the time and it never ends up in my radiator...
The Yellow Mav used to lose a 1/4 of tranny fluid a week ... but never on the ground. Turned out the vacuum modulator was leaking so it was all getting sucked into the intake and burned. But if you have it in your coolant there is only one way it could get there ...
Yes, I would replace the radiator. You could just install a external tranny cooler,(bypassing the cooler in the rad),,,but your rad is on the way out! Also, be a good idea to install the external tranny cooler for that added protection!
yep what they said. you can do the external cooler for a short term fix, but you're going to have to replace the radiator anyway.
If you do bypass the internal cooler, you better plug the input lines, because if it's fluid is getting into the radiator, it will surely leak coolant out those connections once the pressure is gone. Best bet is to replace the radiator.
My 1979 F150 lost the cooler in the rad 7 years ago.I just plugged the cooler lines off in the rad and installed an external cooler.No problems as of yet.It originally was a temporary fix but in all honesty i forgot all about it untill this post came up.Personally i don't really like the trans cooler in the rad,if for some reason the engine overheats you will be heating up the tranny fluid just as much.
Cool deal, tranny pressure making a one way transfer interesting... hmmm... well long story short, my new radiator is on it's way from napa and i've got a quad-coil trans cooler with pusher fan on it's way from jegs... i figure hell repalce it all and prevent the problem from reoccuring! that and the pusher fan is all nice chrome and will look awesome once mounted! Thanks for the advice guys, it's been beating the crap out of me for a while now, and i thought that i had it fixed! By the way, you guys also have the funny little power steering cooler on your mav's? I really hate it's location and such, and was wondering what some of your solutions were, i do want to keep the power steering as it doesn't leak and is nice through the taco bell drive thru!
