1996 Lexus LS 400 Car noise

1996 LEXUS LS 400
162,031 MILES
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SJTPFIT
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  • 1 POST
My car makes a loud buzzing or rattling noise when I turn on my air conditioner. Sounds like something is loose. It doesn't do it when the air is off so I'm sure that has to be the cause of the problem, but am open to any advice given. Thank you
Sep 11, 2013 at 2:37 PM
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RASMATAZ
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  • 75,992 POSTS
Sound like the compressor is on its way out-
Sep 11, 2013 at 4:08 PM
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TY ANDERSON
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 719 POSTS
A few things happen when you turn your a/c on. The blower motor comes on, the a/c compressor starts spinning, and the cooling fans will come on. So where is the noise coming from? Does it happen when you turn on the defrost also for the front windshield?
Sep 14, 2013 at 9:52 AM
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MADMIKE1735
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if you turn the heat on on high, do you still hear a noise? if so, there is a buildup of debris in your blower motor.... if you only get it when the ac compressor is on, the compressor clutch is shot....
Sep 14, 2013 at 8:16 PM