So i was cleaning out my throttle body and mani. and i reinstall them, so i figure, "**** lets change the sparkplugs"... and i stumble across these which appear to be vac lines. But there are no apparent nipples that are missing vac lines?

one is pink ish, and the other is black

pink has an elbow at the end, and the black is a straight fitting.



By renix1989 at 2011-11-23

By renix1989 at 2011-11-23

By renix1989 at 2011-11-23

By renix1989 at 2011-11-23

 

Black is vacuum supply from the reservoir inside the passenger end of your front bumper to the heater controls. Pink is supply for the heater control valve you apparently don't have anymore since it's been replaced by a splice. No worries.. Plug the pink vacuum line..

 

That was gonna be my guess.

 

Ill take a pic for you tomorrow cause Im not exactly sure where they end up going, but they are for the heater controls (only thing vacuum operated in the cab).
Looks like your cooling system needs some work...

 

The black line runs to the vacuum reservoir in the back of the passenger side front bumper.

The pink line used to run to the heater control valve which the OP no longer has.

 

yeaaah, i didnt even think of that, thank you guys. And yeah. i forgot i removed it, tried turning on the heat yesterday. it didnt work, so i shot it.. and as for the cooling system, surprisingly it works perfect, ive never over heated yet. *knocks on wood*