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This heater core then passes the hot air it generates into the vehicle with a blower fan. Many different things can go wrong here causing the whole system to work poorly or not at all.


Car heater problems are also frequently associated with heater core difficulties: coolant may not be traveling through the heater core properly, the air from the blower motor is not reaching it or there’s a clog in the small tubing of the heater core.


My 2005 Toyota Matrix X-rays. My heater is not that hot on the driver side and on the passenger side car in t is cold. Can u please tell me what the problem of s. My car does not over heat. The hoses going to the heater core r hot under the hood and they r hot in the cabin. Need help please


Car heaters that don't blow at all. When a car heater doesn't blow at all, the problem is either a bad blower motor or something preventing power from getting to the blower. If the blower motor is getting power, it's probably a bad blower. If it isn't getting power, suspect the fuse, switch or blower resistor.


Reasons Your Car Won't Heat | Heater Stopped Working Heat in automobiles is supplied by hot coolant circulating through the engine. A small amount of hot coolant is diverted into a hose fitted into the firewall and then into a small heat exchanger or heater core.


My car heater does not get hot. When I turn on the heater on high it will only get luke warm. When I drive it, it goes cold. Ran water through the system and it goes through fine.


Step 8 - The heater core is responsible for converting hot coolant into heated air, if this core becomes plugged it will not operate correctly. To check for a plugged heater core, start the vehicle and allow the engine to warm up to normal operating temperature while turning the heater to its hottest setting.


Heater cores blocking up is not very common in this car. They usually are good until the spring a leak which you will notice by your windows fogging up and not going away. Seems like you have 2 issues, summer issue which is probably First or Second Repair and the winter issue is probably First or Third Repair.


The most common causes of poor or no heat conditions would be (but not limited to) low coolant level, a restriction in the cooling system, faulty blend door actuator, or faulty heater control valve.