2006 Pontiac Grand Prix Heater Blowing Cold Air Out Antifreeze Top You Think

2006 PONTIAC GRAND PRIX
170,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
my heater is blowing cold air out. The antifreeze is all top up. what do you think is wrong.
Nov 23, 2012 at 8:31 PM
Advertisement
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
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.
Nov 23, 2012 at 8:48 PM
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Do the heater hoses get hot? Does the engine reach normal operating temp? Also, temp door under dash may have issues?
Nov 23, 2012 at 8:48 PM
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Hey wrench, have a good holiday, i didn't see you.
Nov 23, 2012 at 8:49 PM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
No problem. Happy Holidays to you too.
Nov 23, 2012 at 8:49 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.