I have an APS ST, and i was following bythabay's instructions for draining and replacing the coolant. But I couldn't' find the air relief valve. Do they switch/move the position of the air relief valve when they install a turbo?

TIA

 

whats an air relief valve?? Blow off valve you mean?

 

It's called a sphincter.








































J/K Here you go...



Google is a wonderful thing....

 

That's weird... where the air relief plug is supposed to be, there is another metal hose going down deeper into the engine bay... I don't have the air relief plug anymore...

It looks exactly like the pic above, but there it's like a T-intersection type thing...

 

Sounds like they used that to run a coolant line to your turbo, is it liquid cooled?

 

oil cooled or water cooled?

 

water cooled

 

try looking further back, somewhat between the plenum and firewall. That's where mine was.

 

I couldn't find it... so this is what I did...

I drove the car up onto a ramp... let it cool overnight...
took off the radiator cap and while pouring coolant into the hole, I squeezed on the large hose. As I did this, you could see air bubbles coming out. Do this maybe four to five times.