Why is my car blowing cold air instead of heat?
Problems with the vehicle’s heating system can be either no air or only cold air coming out of the heating system. A car heating system blowing cold air can be due to a faulty thermostat, low coolant fluid level, malfunctioning heater core, a leaking cooling system, or problems with heating controls and blend door.
Why is my thermostat only blowing cold air?
Your furnace may be blowing cold air because the filter is too dirty. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Do this: Turn off your furnace at the thermostat, and check the furnace filter. If it’s dirty, change it.
What does it mean when your car is not blowing hot air?
Faulty Heater Core Faulty heater cores and low or contaminated coolant levels often come hand in hand, and both issues may lead to your engine overheating and your heater not blowing hot air.
Why does my car heater keep blowing cold air?
There could be various reasons for car heater not working but it basically happens for two reasons: air from the blower is not blow toward the heater core or the coolant does not flow through the heater core. Several underlying causes are there for which the coolant and the air do not go through their designated paths.
What to do if your heater is blowing cold air?
Coolant level: If your coolant level is low, your heater core may not be getting enough warmed coolant through it to produce adequate heat. Solution: Top up the coolant and see if it helps. If the level is low due to a leak, track down the source and get it repaired.
What does it mean if your car thermostat is broken?
If the needle never moves or it’s 30 minutes before it does, then your thermostat is most likely broken. Your temperature gauge should be giving a reading or start to move within 10 minutes of starting the car. If you’re noticing you’re starting to get heat after driving a while this would also indicate the thermostat is broken.
What happens if your engine thermostat is not working?
If the engine thermostat is not working, you are risking severe damage to your engine that will cost more than a 20 buck part. A clogged heater core will eventually turn into a leaking heater core. When the heater core starts leaking all of the coolant within it leaks inside of the car, a smell and mess you won’t forget.