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It could be a number of things, depending on what kind of car you have depends on some components that could be the cause of the problem. First thing I would check is heater hoses/heater core, if both the hoses are hot with the car warmed up and the heater on, then that eliminates blockages in the heater core/ hoses. If they are not both hot, then you may have a blockage in the hoses/core, or a faulty heater valve or controller. Another thing that may be the problem, is the blend door actuator, it controls how much hot/cold is allowed to enter the passenger compartment.
That's most of the heating system for most vehicles. If you still cant figure it out, then its probably time to take it in for service.
What else can I help you with?
What would cause water to be in the air ducts of your car?
you have a leak in your heater core which is attached to your radiator and heats the air inside your car interior
What two substances react together inside a car engine to produce a poisonous gas?
air and gas
Can an air bubble cause your car to overheat and have no heat inside?
yesYes when an air bubble makes it to the water pump the water stops circulating and there for you will over heat and the heater core will no longer produce heat through the cars heater vents.
Rearview mirrors inside a car produce a image?
real
How does air conditioning cool your car?
changes the air temperature inside
Why does the air pressure inside the tires of a car increase when the car is driven?
When a car is driven, the air inside the tires heats up due to friction with the road and the movement of the tire. This increase in temperature causes the air molecules to move faster and spread out, leading to an increase in air pressure inside the tires.
Will a bad heater core cause the car not to start?
No it wont. The heater core is just a small radiator inside the cabin that when the fan is turned on heats the air. A bad heater core will cause you to have no heat inside or will leak coolant on the carpet.
Why does a car window fog up on a cold morning?
The air on the inside of the car is warmer than the air outside.
Why would a car need an air ionizer?
If your car smells like the inside of a smelly gym shoe, you might need an air ionizer. Not only will it remove the offending smells, but it also works to clean and purify the air inside your car.
Why does your spectacles become foggy when you come out of a air-condition room?
as the air inside the car cannot escape from a closed atmosphere the cool air inside the car is condensed in the form of water vapour in the spectacles.
Why is the inside of the car so hot?
The car creates a greenhouse effect. When all the windows and doors trap the air inside the sun heats the inside of the car therefore increasing the temperature.
What can cause a fuel odor in the car?
Any fuel spill,storage or leak can cause fuel odor inside the car.
