Skip the auto shop - Our mechanics make house calls

Q: A/C Blowing HOT air. 2001 Hyundai Santa Fe

asked by on

My A/C Blows HOT air. so I put a freon gauge on the low pressure valve and results = zero. I turned on the A/C to max and the fan. I put the freon into the per description on the can. After I filled to the stop line,I check to see if the air temp had changed any... It was still blowing HOT air as if the temp gauge was set to hot. Any suggestions?

My car has 210000 miles.
My car has an automatic transmission.

A: Hello. If there is no pressure in the syste...

Hello. If there is no pressure in the system, then that means that there is a leak in the system. If there was no refrigerant, then there is going to be air in the system. If that is the case, then the system needs to be evacuated and vacuumed. All air needs to be removed from the system in order for it to work. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the AC system in order to have this corrected.

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: Drive belt is noisy.

Hi there. The loud squeaking noise and burning smell from the serpentine drive belt, may be an accessory component is at fault. Given the steering is difficult to turn it may be, the power steering pump. The serpentine belt may...

Q: Purchasing a used vehicle - A/C is not working

Hi there, thanks for writing in. Inoperative air conditioning can be caused by many possible problems, so it's really difficult to make an estimate without seeing the car. Also making it difficult, is the fact that labor and part quotes...

Q: Various dashboard lights on

Hello. It sounds like you have a charging problem, like the alternator has no output. With the alternator having no output, the vehicle is running on the battery alone. The basics need to be checked: alternator belt present, the current...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
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.