Skip the auto shop - Our mechanics make house calls

Q: A question regarding my car blowing intermittently hot and cold air.

asked by on

My cars air condition intermittently blows hot and cold air. When in gear cold air comes out and if in neutral or parked it blows hot air. I also noticed lately the temperature of the car will go up and down. If in neutral it tends to run hot as with blowing hot air if driving the temperature will go back down in the air will get cool.

My car has 140000 miles.
My car has a manual transmission.

A: It sounds like you have failed cooling fans...

It sounds like you have failed cooling fans. When the car is at idle, the fans should run to pull air across the A/C condenser to regulate refrigerant temperatures and the radiator to regulate coolant temperature. If these fans fail, then these components will receive no airflow at idle, but will still get airflow while driving due to the car moving. I would suggest having a qualified technician, such as one from YourMechanic, inspect your fan operation, as well as the rest of the cooling system for proper operation.

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・Save up to 30%

Get a quote

What others are asking

Q: ABS lights flashing on dash, temperature gauge increased. Multiple lights flashing on the dash. I put my seat belt on and they went away

Hello, this could be a number of things depending on how the vehicle is running now. If you possibly ran through a puddle of water or your belt is worn, it could have slipped and caused the lights to flash...

Q: Alternator not charging

All the battery cables and engine ground cables need to have a voltage drop test done to determine whether one or more cables are not making a good connection, or the cable has a defective connector crimp. I recommend that...

Q: Does the front passenger seat have a height adjustment in a Hyundai Tucson?

Hello. My research indicates that the Hyundai Tucson does not have a height adjustment built into the passenger seat. It does have one built into the driver seat, as well as the option for a cushion height adjustment for the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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 Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...