Skip the auto shop - Our mechanics make house calls

Q: Too much hot air coming in the cabin through the vents

asked by on

When on a drive, there is too much hot air flowing in the cabin through the dashboard vents; making the passanger and driver very uncomfortable.

My car has 118000 miles.
My car has an automatic transmission.

The first thing to do when you feel access heat from the vehicle is to check the cooling system. Chances are likely something has failed. Always start by checking the level of the coolant. If it is full, then you will want to check your thermostat. This can be done by removing it from the vehicle and testing it in hot and cold water to make sure the movement is within specification. This can be tricky to do and is often not worth the time and money. It’s easier and perfectly fine to just replace it. The fans or radiator could also be an issue. Check the others first. One other component that’s possibly at fault (but unlikely) is the blower motor and blend doors for the climate control. If these fail, the climate control may be demanding the vehicle to blow hot air when the controls say otherwise.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Too much hot air coming in the cabin through the vents

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: Check engine light is on. O2 oxygen sencer p0136 also other codes all with o2 sencer. Replaced all 4 but still have engin light.

Hello, thank you for this. The P0136 diagnostic code stands for a circuit malfunction. This means the sensor is not giving any information to the computer and no signal is detected. There is no relay for the circuit. The best...

Q: Driver side Glass scratches after rolling down or up

Hello. The felt weather strips are there to wipe away excess moisture or fog from window. They are not designed to wipe away dirt or debris. You should clean the felt strip with a spray bottle of water or a...

Q: Acceleration problem car sometimes doesnot pick race,anybody help me

Hi there: If I'm understanding your question correctly, it appears you're asking why your car won't accelerate past 70 to 80 (but I'm not sure if you're talking MPH or KM/H). When this happens, it's typically a problem with a...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...