2006 cobalt ss 2.0

so my low coolant light came on and I checked the over flow tank and it was low, so I checked spark plugs ( looking for head gasket leak) they were all dry, got looking around and from my fire wall coolant is leaking out of a hose where moisture is supose to drip out when the a/c is running! Its and 06 I shouldn't have a heater core problem already!!!

 

2 threads??

 

intake maifold. the coolant passages break down. had mine changed almost did a dual pass and heat exchange while they were in there