Skip the auto shop - Our mechanics make house calls

Q: My car air conditioner is making a rattling noise when I turn on the fan. I wanted to know what the problem is?

asked by on

Also it does not throw cold air

My car has 196600 miles.
My car has an automatic transmission.

Hi, thanks for writing in. The rattling sound and the fact that you’re not receiving cool air indicates a possible problem with the AC condenser fan. If you use your air conditioning when the AC condenser fan is not functioning, the air conditioner will simply deliver hot air, and this could cause serious damage to other components within the air conditioning system. It’s a good idea to contact one of our local professional mechanics from YourMechanic.com to complete an AC system inspection to determine what’s causing these issues on your 1999 Toyota Corolla.

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

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!
  • Home
  • Questions
  • My car air conditioner is making a rattling noise when I turn on the fan. I wanted to know what the problem is?

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: Cabin filling with gravel dust

Hi there. Assuming your door seals are good, the only thing that I can imagine is going on is one of two things. Either your AC is set to blowing air from the outside of the vehicle or your interior...

Q: Car does not start even after I jumpstarted it.

If the car is turning over but not starting then you will need to test for spark and fuel. I would have a technician look it over and test the starting system. If it is not turning over at all...

Q: A/C is going crazy. The reading of the "outside temperature" resets itself. 2004 Land Cruiser

Hello - most likely, the outside air temp sensor has been damaged or ripped out. (They are often mounted down low just behind the front bumper, which makes them vulnerable to all sorts of things.) When the sensor is removed,...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...