Skip the auto shop - Our mechanics make house calls

Q: Ac blows hot in summer heat blows cool in winter

asked by on

I'm a bit lost. No matter what settings I try (charged up the Ac still nothing) my Ac blows HOT, we live in the south with 3 under 5 it's too hot for no Ac in the car and the heater blows cool but only in the winter. I just don't get why the heat is cold in the winter and the Ac is hot in summer. I even tried turning the heat on with the Ac setting hoping it was something crossed but still hot. Also my temperature gauge never changes, can can sit for days and it is in the same place it was when you parked. Never goes up or down.

My car has 170000 miles.
My car has an automatic transmission.

A: I can understand your confusion and frustra...

I can understand your confusion and frustration, I believe your Kia is experiencing a few different issues that could all together duplicate the concerns you are experiencing.

It would appear that one or more blend doors, these are inside the dashboard that direct or block fresh air from outside the vehicle entering the cabin, is stuck open. This would explain why you experience cold air in the winter and hot air in the summer. There is a different blend door that will direct or block heat from the heater core inside your dashboard, this door may also be stuck. In regards to the air conditioning, there are a few reasons why it is not working as it is supposed to, however the most common is due to lack of refrigerant.

As you can see, there is a lot going on, therefore I recommend enlisting help of a certified mobile mechanic to stop by and go over your Sedona with you in person and diagnose why you are experiencing these temperature concerns.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: How many oxygen sensors does a 2007 Infiniti G35 coupe have?

There are two upstream oxygen sensors (actually referred to as air/fuel ratio sensors) and two down stream oxygen (O2) sensors. Any brand replacement oxygen sensor will work, as long as you get direct fit. There are also universal fit sensors...

Q: ESP lighting is on

Hi and thanks for contacting YourMechanic. The ESP light is handled by the ABS controller. If you scan the ABS controller with computer scanner you can get the error codes that are stored and begin troubleshooting. Most likely a wheel...

Q: Rpm goes up I let off gas then it'll shift.. what causes that?

Hello. Typically this is caused by either a sticking internal valve in the transmission, or it may be the vacuum module for the transmission. Most of the time this is caused by an internal transmission issue. If the engine is...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...