Trans fluid being pulled into intake need help asap

[tlewis]

Hi guys hope you can help me with this. I have a 93 4x4 with the 4.0/ automatic. I noticed the problem when the motor oil level was increasing.I thought It was water at first but it wasn't foamy or milky.anyway I pulled the upper intake and saw the red fluid run out. I checked the trans fluid level and sure enough it was low. It has to be being pulled op into the intake by engine vacuum I know, but why? I know quite a bit about engines but am not knowledgable at all about automatic trannys. Could it be that diaphram thingamadoogy on the right side of the transmission? I saw that it has a vacuum line connected to it. Any input from someone who knows about these things would be greatly appreciated

Thanks,
Tony

 

[Jason_25]

Yes the seal in the vacuum diaphram has gone out.

 

[mrboyle]

Jason is correct, the fluid is being pulled through a hole in the diaphram and into the intake.

 

[tlewis]

Thanks guys
I really appreciate the quick responce,I've been thinking about this thing all afternoon and thats the only solution I could come up with. thanks for verifying. so I need to disconnect the vacuum line and blow out any remaining fluid in it, replace the vacuum module and reconnect the line. anything else I need to be aware of?
Thanks again for your help
Tony

 

[X-1]

modulator valve

If you can't reach from under neath, you can take out your seats and under the carpet is a removable panel. easiest way to replace.

 

[tlewis]

Good information thanks