Q: Air not working consistently

asked by on

The air conditioning is not working consistently. Also, the car sometimes seems to be blowing hot air when the heater is not on.

The vehicle may be low on refrigerant, due to a condenser, or compressor leak. If the vehicle blows ice cold one minute, then warm until the vehicle or AC is shut off, then you may have a malfunctioning expansion valve. Another possibility is malfunctioning controls. I recommend having a mechanic, such as one from YourMechanic, run an inspection on your AC system, and recommend the best path to repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Air not working consistently

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: Q: How do you defog the side windows?

While the front and rear defrost will take care of fog or mist on the front and back glass, you’ll notice that sometimes the side windows fog up as well. Here’s how to defog them: Turn the air conditioner...

Q: Temperature gauge goes up to 3/4 then back down to half.

This kind of behavior may mean that you are low on coolant. Normally the tip of the temp sensor is submerged in coolant. When the coolant is low, there may be an air pocket around the sensor that allows it...

Q: New battery and car wo t start

Sometimes when the battery drops in voltage and it is disconnected the anti-theft system becomes activated and key codes get cleared when battery is reconnected. The first thing to do is turn on key to see if theft light is...

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...
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...
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...