Well he said the reserve tank was steaming and boiling... i assumed he ment the one for the intercooler. However i am unfamiliar with the install of a new SC on these cars and if the cooling system has to be disconnected. If so it may be the system has air in it, or dare i say the thermostat was installed backwards? I know on some older cars if the thermostat was installed wrong it would not open. Anyway... just bouncing ideas off the wall... i can belive we are still pumping away about this...WOW!!

 

The intercooler tank will show active signs of flow when the pump is running (ignition on), which could be easily interpreted as boiling by some. However, I would be shocked to hear of it actually reaching boiling point. The Intercooler cooling system is totally separate from the motor cooling in every way, so thermostats and the like will have little or no effect on that side of things.

Now, if the OP means the engine coolant expansion tank then yea, something is amiss with the pump or, as you say, the thermostat. I don't know if these stats can be reversed in their housing but I guess it's a possibility

 

I don't think so although your comment is rather sweeping, so perhaps. You refer to the motor or the intercooler, or both [?]. Because the two systems are totally separate, as you know..... right?

 

Yes i am aware the systems are seperate. How did you determine i thought they were connected? i said in the engine OR the intercooler, there is plenty i dont know about these cars but i have done my homework. I know they are seperate but i ment that i was unsure of if the radiator hoses needed to be disconnected when he installed the new blower and in doing so maybe he capped it off with something and forgot it was inside the hose. As for the intercooler lines being blocked i know they have to be removed obviously but maybe the same thing applies. If not then possibly there is a bad pump. I personally dont know if they intercooler coolant could get hot enough to boil if the pump failed but i would think that if it stopped and the car was being driven harder than the average grocery run then the friction from the blower and loss of cooling just below that area may be high enough to cause this problem. I know it was stated that the temp gauges in our cars are crap but i would think if the engine is getting hot enough to boil the coolant then the gauge would atleast move some. Also if the coolant was only being pumped into the tank as you suggested then the bubbles would mean the system has air in it? and therefore needs to be purged.