Hey I did some work on my ht4100 (head gasket) and all I have left to do is hook up a few lines. I cant figure out where one metal line that runs off the throttle body goes. Its a prebent, steel or aluminum line and it has a threaded fitting on one end that attaches to the rear throttle body. The other end of this line has about a 4" piece of rubber hose clamped onto it, like it would attach to another steel line of sorts or some other sort of fitting.

Does anyone know where this line runs? I posted a similar post about a year ago and never really got around to working on the car, but now i have time... and still have the same problem... Please help! :)

Hey I did some work on my ht4100 (head gasket) and all I have left to do is hook up a few lines. I cant figure out where one metal line that runs off the throttle body goes. Its a prebent, steel or aluminum line and it has a threaded fitting on one end that attaches to the rear throttle body. The other end of this line has about a 4" piece of rubber hose clamped onto it, like it would attach to another steel line of sorts or some other sort of fitting.

Does anyone know where this line runs? I posted a similar post about a year ago and never really got around to working on the car, but now i have time... and still have the same problem... Please help! :)
To brake booster or PCV?

Brake booster.

If by "back of the throttle body" you mean the firewall side, there are two lines there. One goes to the MAP sensor, the other to the brake booster.

I'm agreeing brake booster here... MAP sensor would not be 3/8"-ish.