My heater is blowing cold air 2005 dodge grand caravan

Most likely low on coolant. When engine is cool, check radiator level.

Sounds like you are low on coolant. May be full in bottle but empty in Radiator. Make sure you check when cold. Possible waterpump leak or if you have rear heat, the coolant tubes to the rear

this sounds normal in very cold conditions! The air is never hot when you first start the car in any car, until the engine warms up, then the heater air will also warm. You could check your anti-freeze level for the first thing. If you don't have enough anti-freeze, it won't run through your heater to give you the proper heat

There is a recall that has something to do with the air/heat system in 2005 Dodge Grand caravans. Recall F01. Here is a link. I had mine done two weeks ago, cost me nothing. My air conditioner was overheating.

the most probabale cause of this would be a disfunctional hear core if you replace your heater your heater will more than likley work the the way it's supposed to

i would suggest that it is the thermostat in need of replacement... how cold is it there ?

Robert

In this order check the following:
Antifreeze level
thermostat
blend door
blend door motor...accordianman

misty check the water level in the radiato...if it is low the last thing to get any water is the heater core..if low you will need to find the reason...like a water pump or headgasket leaking

check the coolant level, I had the same problem low coolant level.....no hot water to the the heater coil.