Automatic Transmission - 4l60e metal breather tube on top of trans?

what is that breather looking metal tube on the top of the 4l60e and is anything supposed to be connected to it?

In most cases there should be a hose connected to it. It is there for a couple of reasons. First to keep water from being able to get in there. Also if for some reason the trans decides to puke out some oil, it does not get directly on to the exhaust and catch fire. Vince

Usually it goes into a 3/16" Rubber Line that goes along the Torque Arm..

someone was tellin me you have to connect it to the intake manifold for vaccum to get the trans to shift right. but other people say its nothing. wats the right answer?

That's way wrong..do that and you'll have problems..lol

Most of your older Transmissions had a kick-down Cable to open up the Valves inside when you wanted to downshift. These newer Electronically Controlled Transmissions (pretty much anything with a E in the last part of the name) have a Solenoid System internally. That is what controls the Shifts based off of RPM and Throttle Postion.

mine didnt have nothing hooked to it.