Q: Added refrigerant, but no cold air

asked by on

Air conditioner still not blowing cold air after adding refrigerant.

There are many causes for the AC not to be effective: Low refrigerant is common, but not always the source. The compressor has to turn on and provide the proper circulation. The expansion valve has to create the right amount of restriction. The temperature door in the dash has to move correctly. The engine’s cooling system and fans have to be working properly. Improper servicing of the system could lead to more problems, so you should have the system checked by a pro. I recommend having a certified technician, such as one from YourMechanic, come out to your car’s location to inspect your AC system, and suggest 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. Added refrigerant, but no cold air

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: Brakes barely working

Where are you hearing this noise? If it is coming from the tire and wheel area, you may be hearing your brakes making a scrubbing metallic type sound. If so, that would be your brake pads grinding against the rotor...

Q: Why heater cools off at low idle but resumes to hot setting upon acceleration?

Sometimes when a heater core starts to get clogged from dirt and debris inside coolant cores it take higher flow to get good heat out of it. Try to have heater and cooling system flushed and the thermostat replaced to...

Q: We've replaced the steering column w a used one ( different key ) will this cause a no start?

This may potentially cause a no start issue as the keys are usually equipped with a microchip in them that is mapped/flashed from the dealer specifically to the vehicle's computer. I would recommend having the new key re-flashed to the...

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...