Coolong system pressure check

[achillies]

I tried to use the Air Lift on my system today. Hooked it up...at 15psi it lost pressure and fluid came out of the hose. I tried clamping the overflow tube but no improvement. Are there other hoses I should be clamping? Am I missing something? My car doesnt leak at all. I was just checking it prior to changing the coolant. THanks

Edited March 30, 2009 by achillies

[wvicary]

Ummm... whats the "Air Lift" system?

[achillies]

AirLift is the tool used to change the coolant in a 996. I was trying to pressure test my system but it seems to loose vaccum at about 15psi. The instructions say to clamp all vent or overflow hoses but I only see the one. I was asking if anyone has used this tool and what other hoses should be clamped off. Thanks