Hey, this is a 2002 Dakota 4X4 with the 3.9L and auto trans. The truck was used and I can't figure what this little breather tube thing is. I'll show three gradually closer pics. Any help would be greatly appreciated.

[img=http://img474.imageshack.us/img474/3716/breathertubefarty9.th.jpg]

[img=http://img474.imageshack.us/img474/5156/breathertubemediumuz5.th.jpg]

[img=http://img73.imageshack.us/img73/7671/breathertubeclosewm4.th.jpg]

 

thats a vacumme line, however i dont have a 3.9 handy to check where it goes to...somwhere on the intake?

 

thanks travis. what exactly is the purpose of a vacuum line?

 

cruise control, a/c, brakes, if you have no vacuum you have no stoping power or accessories...

also why the hell are we talking about vacuum lines. I didnt know the vacuum was a breather. It should be a sealed line, coming from the intake manifold splitting off into different accessories... correct me if im wrong, thats what it is like on my 5.9, not sure on a 3.9..

 

ya could be rite, guessing its emissions but i have no experence with that motor..

 

it definately has something to do with the vacuum system, im not sure thogh, probabally for cruise control though

 

^^^ go look at urs ya have the same motor

 

I have a 3.9 and I checked mine. Mine is capped off right there also. However I do not have cruise control or 4wd so maybe it has something to do with that.

 

so it is a vacuum line, what i thought being where it is....

 

if u look at the diagram on the underside of the hood, it shows the schematic for the vacuum system, and it has a arrow pointing to that port of the intake, it has a caption ( for climate control, speed control or 4x4 axle if equiped) mine is capped off and i have 4x4