2003 Pontiac Grand Prix "heater blow cold" Questions

my heater just blows cold air. If your heater just blows cold air the very first thing i would do is make sure there is coolant in your car. if there is not then there will be no heat.

heater will blow cold. Another possibility is the radiator cap. After the engine has warmed up it expands when it cools down it contracts. As it is contracting if the cap is weak air can be drawn into

...heater was working for a awhile now it was ok but then I when i turn on the heat it blow out cold air. One or two days later i tryed it and and started blowing out heat but after ten second it went ...

...cold replaced heater core the blending door runs on vacume check your vac lines around the heater to make sure they are plugged in sounds like u turn it and it works for a bit until it loses vacume i ...

...the car off then restarted the car my heater wouldn't blow any hot air only cold air. TWO PROBLEMS MAY CAUSE THIS; HEAD GASKET MAY BE CRACKED OR HEATER CORE LOCATED BEHIND DASH IS NEEDING

...blow cold. i have tried adjusting the knobs around to knock something loose but dont work. i have 1997 gran prix gtp The cabin filter might be clogged, try replacing it. If you are trying to get heat ...

blows cold air if you mean blows cold air while the heater is turned on it may be that you need to add more antifreeze. had the same problem before

...Heater blows cold on passenger side. Driver side and two middle vents blow hot, the other two vents blow cold. ether the blend door actuator is bad or the climate control module is failing. most ...

...Heater Not Working - Blowing Cold Air 2002 Pontiac Grand Prix GT / Car Heater Not Working - Blowing Cold Air also check to see if tube that runs your climate door is not pinched or broken. the vaccum ...

heater will sometimes work but at other times it just blows out cold air. When I turn it off after blowing cold air,...it might go back to hot. Or it might start out blowing warm air and then go cold.