I'm not getting any hot air from my vents, just getting cold air when it's on heater. No, I didn't click on AC, cause I don't have AC. With the engine warm up I checked the two hoses that are comming from the heater core in the engine bay and they're both hot. When I check the two radiator hoses, the top is hot, but the bottom is warm. Is it possible that the thermostat is stuck open??

Please respond, cause it's cold driving to work and comming from work. thanks

 

That's a good place to start... Don't some people cover up their radiators with a piece of cardboard in the winter to slow the "cooling" of their coolant?

 

check your thermostat and t-stat housing. Also check the warm hose, might have a stress fracture or something wrong with it.

 

note the obvious...

 

I thought that if the heater core is clogged, only one heater hose will be hot......


From the radiator, which way does the antifreeze flow?? Is it from the top hose to the engine, then bottom.....or bottom to engine, then top hose?

 

I will say your heater core is the problem. I willa lmost promise you you need a new one

 

make sure the temp. contorl is working.