2001 Forester - Coolant boiling

[kruteck]

I replaced a timing belt, water pump, and thermostat recently.  I drove it for the first time since and I heard gurgling.  It dawned on me that I forgot to burp the coolant system.  I drove it a few more times with no overheating issues and finally got around to burping it.  I rigged up a funnel in the radiator, started the car, and started adding coolant.  It took a few cups of coolant, then looked as though it was full, so put a bit more coolant in the funnel and let the car idle for about 5 minutes.  It burped once or twice, but that's it.  I let it continue to idle.  I was expecting the fan to come on at some point, but it never did.  This perplexed me a bit because the fan worked prior to and after installing all the new parts.  The upper and lower radiator hoses were warm/hot to the touch.  No more air bubbles showed up even after 10 more minutes of idling.  At this point the coolant started to boil.  I put the radiator cap on and shut the engine off.  

I wouldn't think it's a thermostat issue since both hoses were hot.  I suppose it could be the water pump maybe, but it's a brand new Aisin pump.  Still not sure why the fans didn't kick in.  Any ideas would be appreciated.  

 

[lmdew]

Sounds like you still have air trapped in the system.  Temp switch for the fans is up high on the crossover pipe on top of the engine.

Is the temp gauge operating normally?  Good Subaru, warms quickly to the same temp every time and stays there.

[kruteck]

Not sure why I didn't put this in the original post, but the temp gauge was normal.  It didn't show the engine overheating.  I'll take a look at the temp switch.  Thank you.