MY HEATER IS BLOWING COLD AIR OUT

2006 Pontiac Grand Prix

Tiny

Anonymous

November, 23, 2012 AT 8:31 PM

My heater is blowing cold air out. The antifreeze is all top up. What do you think is wrong.

FOUND 6257 RELATED QUESTIONS

No Heat

37 ANSWERS
5 IMAGES

4 Answers

Tiny

Wrenchtech

November, 23, 2012 AT 8:48 PM

With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. It is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.

Tiny

JDL

November, 23, 2012 AT 8:48 PM

Do the heater hoses get hot? Does the engine reach normal operating temp? Also, temp door under dash may have issues?

Tiny

JDL

November, 23, 2012 AT 8:49 PM

Hey wrench, have a good holiday, I didn't see you.

Tiny

Wrenchtech

November, 23, 2012 AT 8:49 PM

No problem. Happy Holidays to you too.

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