Q: My A/C only blows cold on recirculate

asked by on

My evaporator tube clogged flooding the passenger side, I unclogging it I noticed the A/C only blows cold when on recirculate but luke warm on normal or outside air. A/C Refrigerant is fine.

My car has 75000 miles.
My car has an automatic transmission.

Hello. You will always get colder air when on recirculate. When taking in the outside air the A/C system will be able to drop the temperature coming in by about 20 to 30 degrees. This means if the outside air is 95 degrees, then the coldest you will get coming out of your vents is about 65 degrees (Fahrenheit).

When on recirculate you keep using the air inside the cab and will still lower the inlet temperature by 20 to 30 degrees, but you will get a lower drop as the system runs since the inlet air may get to 65 degrees and your vent temperature can get down to about 40 degrees.

If you are low on refrigerant even by a little, you will not get the full temperature drop and may only get a 15 or 20 degree drop or less. Have the system pressures checked with a gauge set to see if the system needs a little refrigerant. If you would like to have this checked, a qualified technician from YourMechanic can come to your car’s location to inspect the AC system for you.

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. My A/C only blows cold on recirculate

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: Hello, my car's temperature isn't rising, so the ac isn't working, what do you think is the problem? Compressor, or Radiator?

The radiator is part of the engine cooling system and would not typically be inspected or serviced if the passenger compartment air conditioning system is not working. If the car engine is overheating you might inspect the radiator though. If...

Q: Ac blowing hot air. 2011 Chevy Equinox

Hello. Thanks for writing in about your 2011 Chevrolet Equinox. An AC that blows hot air can be caused by a few things. If the vehicle used low cold air, but over time began to blow warm, it may be...

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

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,...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...