Humming sound when AC is on

Asked by Apr 14, 2015 at 05:12 PM about the 2012 Toyota Camry SE V6

Question type: Maintenance & Repair

I noticed a faint humming sound this morning.  I turned the radio off and it was still humming.  Then turned off the AC and it stopped.  When I turned AC back on, the sound came back.

5 Answers

Probably just the compressor running. I wouldn't worry about it. Unless you mean it's humming through the radio? Not sure what you mean by turned off radio and still humming...from the radio?

1 of 1 people found this helpful.

Lol! Sorry that wasn't clear. I turned off the radio thinking it was static or some odd background sound. Probably should have left that piece out of original post.

https://www.youtube.com/watch?v=hXtbXMIQw8Y

1 of 1 people found this helpful.

That video is one somebody took to ask if the sound was normal. from a Corolla but would be same

You might want to run this test. With the AC on and the compressor running, spray a little water on the drive belt Use a discarded spray bottle. If the noise changes in sound...you might need a new drive belt. If the noise stays about the same...you may have a bad compressor bearing.

2 of 2 people found this helpful.

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