When I bought my car, the heater hoses were bypassed. Last night, I took them and reconnected them to where they belong, added antifreeze, and started the engine. Engine ran fine (minus sporadic idle from me forgetting to bleed the air) and nothing was leaking when I threw the switch to hot, however, the air remained cold. I let it sit there on for at least 5 minutes. I think my blower is okay, I just think my heater isn't getting coolant because of my issue my engine has with sucking all the coolant and keeping it.