Skip the auto shop - Our mechanics make house calls

Q: My ac is blowing but not cooling

asked by on

My ac is blowing but not cooling

My car has 130000 miles.
My car has an automatic transmission.

A: Hello. An AC that does blow cold air can be...

Hello. An AC that does blow cold air can be caused by many things. A few common causes are low refrigerant, a faulty pressure switch, or a bad compressor. The component responsible for blowing air is the blower motor, however, it is not responsible for making the air cold. The actual AC system that is mostly installed in the engine bay is what generates the cold air. If the refrigerant the system uses runs low, perhaps due to a leak, or the switch that activates the compressor fails, then the AC system will not work properly. I would start by verifying that the compressor is in fact coming on, and then test the pressure of the AC system to see if it may be low and in need of refrigerant. Keep in mind that if the system is in fact low, you will have to determine what caused it to run low in the first place. To have this checked, have a local expert, like one from YourMechanic, come to your home or office to diagnose the A/C system.

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: Need to know if my alternator is bad.

Hey there, thank you for asking about your 2005 Chevrolet Silverado 1500. Disconnecting the battery while the vehicle is running can damage the Powertrain Control Module (aka, vehicle "brain" or "engine computer") or other electrical components due to voltage excursions...

Q: Tried adding refrigerant and it wouldn't take any

Hello. Air conditioning systems on newer cars, trucks, and SUV's are incredibly complex. However, the issue you're describing may be caused by a high pressure or low pressure hose that is damaged or leaking. When the hose is clogged or...

Q: How much will it cost to repair a dent on the right side close to the wheel?

Hello - This task is best handled by a collision repair estimator at a reputable paint and body shop. S/he is trained to evaluate visible and not-so-visible damage, and the costs to repair. Contact a reputable paint and body shop...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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...