Q: Q: Heater broken

asked by on

The heater is not working. Do I need a new heater core?

Hi. When a heater core fails, it usually fails by leaking coolant into the passenger compartment in the vehicle. If your problem is that hot air is not being blown out of your vents, you could have several other issues. The heater is ran by the coolant in the engine. If the vehicle is low on coolant, it will not work correctly. If the system has been serviced recently, an air pocket can develop and not allow the coolant to flow to the heater core. Some vehicles have heater control valves that block off coolant to the heater core when the heater is not in use. If this valve fails, it will not allow the coolant to flow to the heater core. Lastly, the actuator under your dash can fail and not direct the air to the proper location for heating. A qualified mechanic, such as one from YourMechanic, will be able to inspect the heating issue and help you repair it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Heater broken

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When reversing after car sits overnight, there is a loud clunking sound coming from left rear. Seems to stop once car warms up. Ca

Hi Corinne. Thanks for contacting us today. Sometimes, this type of problem is an indication of a wheel bearing that is starting to wear. As the wheel spins, it will build-up heat and the noise can go away. However, over...

Q: Q: Car shuts off while driving

Hello. Most of the time if the car just shuts right off then it is caused by a main relay that is failing or a distributor issue. I usually start by determining if the engine is losing spark or fuel...

Q: How do I open the trunk with the remote keyless entry (RKE) transmitter?

The remote keyless entry (RKE) transmitter can be used to open your vehicle’s trunk. Here’s how: 1. Press the unlock button on the RKE transmitter. The unlock button looks like an open padlock, and will unlock all of the vehicle’s...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.