First, check your coolant level to be sure there is enough liquid in there to even get to your heater core. If your radiator is very low on coolant, you'll get no heat. If your levels are okay, you either have a bad water pump or a thermostat that isn't opening.The most common problem when the heat is not working in your car is actually a low coolant level. Luckily, the coolant level is very easy to check. Locate the coolant reservoir (Usually a red, green or blue fluid).
What happens when the engine coolant is too low?
This happens when the engine coolant is so low that air is pumped around in the coolant system. When an airlock is surrounding the coolant sensor, it will drop, and when the coolant comes again, it will go back to the normal temperature.
Why is the heat not working in my car?
The most common problem when the heat is not working in your car is actually a low coolant level. Luckily, the coolant level is very easy to check. Locate the coolant reservoir (Usually a red, green or blue fluid). In most car models it does also says coolant in text on the cap of it.
Can a coolant flush cause a heater to stop working?
On the other hand, a coolant flush doesn’t always clear the dirt and debris inside the heater core. Yes, you heard me right. A bad thermostat or water pump can also cause the heater to stop working.
What happens if the engine is not holding the temperature?
If the engine is not holding the temperature properly, it can cause engine parts to expand so much that damages will occur, and the engine will seize. Mostly, the only way to fix a seized engine is to tear the whole engine apart to locate the issue. Is it safe to drive with a low engine coolant level?
Below you will find two interesting articles on a similar topic 👇
Why did my car heater suddenly stopped working?What is BMW thermostat?
