Expansion tank cold, no heat in car
now this. i didn't check at starting the engine, but i think the big fan on the front is constantly on. (not sure)
the expansion tank is ice cold, seemingly there's little movement i didn't check that either. the big tube (upper hose?) behind the radiator is hot.
there's no heat in the car (i live in socal so it's not big deal but some late nights at winter it'd be nice to have heat)
how to make sure it's the thermostat, or what else can it be?
thanks


