Q: Q: Air conditioner not working

asked by on

My air conditioner only works part of the time. Sometimes if you bang on the passenger side dash it will start blowing but not all the time. Also when it's not working I have checked under the hood and the compressor line is cooling so I don't think it is the compressor. Also I have a rattling noise when it is blowing. Another thing is that when it's on it cools really well but sometimes when it's set in high it does not blow as hard as it used to.

My car has 83000 miles.
My car has an automatic transmission.

The next time it acts up, try wiggling the fan speed selector, or moving it back and forth between speeds. If it starts working, then the problem is most likely the fan selector switch itself. If the problem is not within the switch, you could have a loose connector or wire. I would then remove and inspect the fan for breaks or debris that could make the rattle noise. If you need help having this checked, a certified technician, like one from YourMechanic, will be able to test and verify the cause of your AC issue so that you can move forward with the correct repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Q: Air conditioner not working

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: I hear a clunk when putting my 2003 Honda Accord LX in reverse and drive

It sounds like your vehicle may be a bit low on transmission fluid or you may potentially have a bad transmission control solenoid. As you know, the transmission works on hydraulic pressure built up from the fluid inside and uses...

Q: If tdc is on exhaust stroke will it have 10psi on cylinder 1

Most engines will need at least a minimum of 100 psi per cylinder in order to run. In addition, for the motor to run efficiently, this also requires a variance of less than 10% from cylinder to cylinder on this...

Q: Air conditioning makes whirring noise

Hi there. Depending on where the noise is occurring, this will help determine what is causing it. If the noise is coming from under the hood, then it is the compressor. It is common for the AC compressor shaft bearing...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...