Pontiac Repair: Heater, heater core, cool air

Question
I have a '06 Grand Prix standard and my heater is not getting hot at all, it just blows out kind of cool, slightly warm air. My coolant is not low. Any ideas on what the problem could be?

Answer
Hi there:

This has Dual cliamte control non automatic "digital" dipaly. does the heater blow out cool ar on both sides when set to hot? If so chances are that there is a restriction in the heater core "plugged" it may just need to be back flushed out. Now if one side blows hot and the other is cool I would suspect that you have an electric temp door actautor that is bad on the side that blows out cool air. Good luck :)