does anyone know what this hose is?




its leaking coolant thats puddling on top of my motor and running down the side of the transmission. is there any way to change this hose without removing the throttle body and intake manifold?

 

you will have to remove the throttle body and i believe that line runs to the top of the intake manifold directly underneath

 

Yes thats correct, if you remove the top intake manifold and the TB you can get to it its on the top of the middle intake manifold.

 

coolant from rear iron to throttle body.

 

look like a pain in the *** to do but can be done in less than 2 hours if you have all the parts to fix it and have a good memory.

 

uhhh... that hose goes to the bac valve right??? i changed it without removing the manifold or the throttle body. i have an S5. does that make a difference?

 

i know mine was an S4 and im about 98% sure there is now way to do it without pulling the UIM. Also if you have the time and money and havent done so. It probably a good idea to check your OMP lines and replace or have your injectors cleaned. That way you dont have to pull the UIM again anytime soon

 

Yes it does, on an S5. This is an S4 and the back valve is on the right side of the top intake manifold, so the coolant hose for that is farther back.

 

thanks to everyone who helped
i just got it done

 

Less than that when you're rushing to replace a fuel line at midnight in an elementary school's parking lot