Hey everyone. I'm having a problem with the heat in my 03 SS. It only works sometimes right now. Like, I have to be moving for the air coming out of the vents to become warm. Other than that (like when the engine is idling), it's cold even with the engine warmed up. It's really becoming a problem now because I can't de-fog my windows in the morning and I can barely see. My dad and I are going to try to flush the Heater core tomorrow, but is there anything else we should look for that could be causing this?

Thanks,
Bill

Edit: Forgot to mention, we replaced the thermostat just last summer because of overheating problems, so I'm not sure if it could be that.

 

Nevermind, fixed it by adding anti-freeze. Apparently it was low. Thanks anyway.