Mechanics

PONTIAC GRAND PRIX AIR CONDITIONER PROBLEM

2008 Pontiac Grand Prix • 125,000 miles

When I turn my heat on it doesnt blow out hot air, the air it blows is just air not hot or cool. Also my air conditioner works fine. So what could it be?
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Trizzy
November 4, 2012.



Do the heater hoses get hot? Does the engine reach normal operating temp? Are there any hvac applicable trouble codes? Might be an actuator door under the dash, that isn't working properly?

It isn't 30 degrees F below zero in your area?

JDL
Nov 4, 2012.