Tranny breather

After we pressure tested the radiator, my g/f's dad asked me why I had the tranny dipstick tied down, and I explained how it kept popping up while driving. He told me it was because of some kind of transmission breather valve, and that it must be clogged/obstructed and that the pressure had no where else to go. He showed me the one on the top of the tranny, but that one was free flowing, does anyone know where the other is?

I will try to look it up in the ATSG book. I thought it only had one.

Thanks Bill.

What's the word my good man?

Word is ... Bill's sick, sleep deprived and worked on the 03 Impala until he collapsed.

I'll aim for tonight. It's in the truck I think . <~~ that impala has me feeling like this.

I'm pretty sure there's only the one vent.

Hmm.. What else would cause that then?

I only see one vent.

Maybe it wanted you to check the fluid level?

IIRC it's near the filter where it checks the level. When was the last fluid and filter service?

I couldn't tell you.. I haven't had it done in the year and a half i've owned the car.