Heater blows cool air?

**soupy** · 10-07-2012

My 2005 Grand Prix 41,000 miles is blowing out cool air. If I set the blower on a low setting it blows a little warmer. Any suggestions? Only maintenance thus far is routine oil change and new tires and rotaions. With such little miles I have not done any other Maintenance.

Thanks,
Ken

**soupy** · 10-07-2012

I forgot to mention that the engine is not over heating or anything. Temperature is normal.

**stealthee** · 10-07-2012

Is there enough coolant? Is the heater core blocked?

**eleedy** · 10-07-2012

Same sort of thing happened to me today, it came out hot as could be while I was driving, but sitting at a red light it came out cold. Turned out I was low on coolant and it's been fine ever since.