Country Boy

iTrader: (24)

Whats the breather line routing on an auto tranny? I have a breather line that runs off the top of the tranny to a T... one goes to a one way breather fitting (the little white plastic fitting in the hose) and the other goes to an open end. I know its supposed to be hooked to something since it wouldnt just be an open end hose... any ideas? Its a 4wd too.

Mangled03gmc

iTrader: (95)

Mine is the same way. After I did my engine swap that bracket didn't get hooked back up. I cut it odd short, fastend it to the top of the trans, left the other one where it was.. It is a vent of some sort..

John

thunder550

iTrader: (70)

Do you have a breather hooked up to the top of your transfer case? That might be it....I'm not real clear on your description of where the T is and where the two sides of the T go to.

KySilverado

iTrader: (7)

Vent tube at top of transmission and another vent tube on the transfer case.

Country Boy

iTrader: (24)

Yeah, I figured it out. One is for the transfer case which has its own seperate breather line and theres one line that comes out of the top of the tranny to a Y and one end goes to a breather fitting and the other end just stay open for a puke tube incase the tranny needs to puke fluid.

Mike1992

Bringing this back, my truck is 2wd and I've got the same thing., Breather out of the trans goes to a T and one end is vented open to nothing and the other to a white cap vent. Am I missing something?

03sierraslt

iTrader: (22)

No, if you overfill it then it will blow out that vent.

DrX

iTrader: (7)

White cap goes up high for venting and as stated, overflow goes rearward, low for puking. Don't want trans fluid spraying into the engine compartment.

blown02408

iTrader: (4)

Don't want it all over the back of your truck or on the track either if you go to the drag strip, put a catch can on it!

Mike1992

Awesome, thanks guys