Skip the auto shop - Our mechanics make house calls

Q: Dual AC not working correctly

asked by on

My car has a dual air conditioning and it's been malfunctioning lately. There would be cooling on the driver's side, but the vents on the passenger's side doesn't blow cool air. How can I fix this?

A: The charge level of the refrigerant may be ...

The charge level of the refrigerant may be low. If the refrigerant level is low then what could be happening is that all of the heat transfer capability of the refrigerant is maxed before the refrigerant can flow to the outlet side of the evaporator. The system needs to be recovered and the charge level determined.

If the system is low on refrigerant, then a leak check needs to be done to ensure there is no leak that caused the low level. Once the system is repaired of any leaks, then the system needs to be brought to the appropriate refrigerant level. You may want to enlist the help of a mechanic, such as one from YourMechanic, who has the knowledge and expertise to diagnose and service your AC 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

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: Rattling from AC when idling

The rattling may be from the AC compressor pulley or tensioner for the belt. The tensioner is the most common problem, but the spring may be too weak causing vibrations and rattles. I recommend seeking a mechanic, such as one...

Q: Car shifted into neutral and lost power

Hello. From what you describe it would appear that your vehicle is experiencing some sort of transmission issues. The transmission on your vehicle is electronically controlled using a series of sensors and switches, and a computer. If there is an...

Q: What does it mean when your car not turning over and the battery the check engine light in the oil light on

Hi There, When the battery light is on this generally means you have an issue with the charging system (i.e. alternator or voltage regulator) or a weak battery. In this case, it sounds like you may have a battery that...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.