The air blows thru the vents but it doesnt get warm. on the dashboard the temp guage stays below the line for cold. what could be the problem?
by 
familyguygirl
ANSWERS: 3
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your thermostat could be stuck open this happens rarely, but hey it happened to me
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A stuck open thermostat would most likely be the cause, but also make sure that you have a good mix of water and coolant 50/50 or 60/40 and make sure that the radiator is not empty. Also make sure that if the coolant system has been serviced lately since this problem occured it could be a large air bubble in the system, some vehicles have a bleeder valve of some sort to let the air escape.
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if the level of coolant is even low it could cause that problem, coolant needs to be full
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