Skip the auto shop - Our mechanics make house calls

Q: What does hot air below the driver' feet indicate?

asked by on

Very Hot air comes on both driver and passenger's feet when driving, even though heater or A/C isn't on. The top vents blow out this hot air. I also smell a bit of something burning but not sure what it is. Please tell, what is the problem? ?

My car has 78000 miles.
My car has an automatic transmission.

A: Hi there: If the heater is not on and the ...

Hi there:

If the heater is not on and the vents are blowing hot air, it’s possibly caused by a malfunction of the heater motor relay or the heater core. What’s most likely happening is that there is an electrical issue that is causing the heater to activate without being activated by the driver. The burning smell might be debris or dust inside the vents or an electrical issue. For an issue like this, I’d recommend contacting a mobile mechanic as soon as possible to complete a heater is not working correctly inspection to determine what is causing this to occur.

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!

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: The dash shows warning lights on, the alarm goes off

It is possible that you could be experiencing an alternator failure. When alternators fail, they can cause a number of electrical issues to occur that seem unrelated. My best recommendation would be to have your battery and alternator professionally tested...

Q: Urgent Car Pulling

The cause of the smoke seems to of went away a month ago. You may have got a stuck caliper that caused the smoke back then. If you think the pulling is due to the brakes then you should have...

Q: A.c. running when engine is off.

The blower resistor is shorted and causing the blower to stay on. The resistor is in the blower housing. You will want to have the resistor replaced with a new one in order to remedy this problem.

Related articles

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...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...