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grinding noise when the A/C is on,
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montejes000
New User
Jul 25, 2009, 7:39 AM
Post #1 of 6
(1725 views)
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grinding noise when the A/C is on,
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Hi,
I own a 2000, Chevy Monte Carlo, 3800 series 2 engine, 73,000 miles. It makes a noise like somthing is just barely hitting the flywheel when I accelerate. The noise goes away after I speed up past 20 miles an hour or so.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 25, 2009, 7:46 AM
Post #2 of 6
(1722 views)
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Re: grinding noise when the A/C is on,
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If your only hearing this noise with the A/C on, then your looking at a bad compressor.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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montejes000
New User
Jul 25, 2009, 7:56 AM
Post #3 of 6
(1718 views)
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Re: grinding noise when the A/C is on,
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I am getting very cold air even on hot days and my car is black, if the compressor is bad why am I still getting ice cold air?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 25, 2009, 8:39 AM
Post #4 of 6
(1714 views)
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Re: grinding noise when the A/C is on,
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That's entirely possible. It just has a bad bearing or something inside but still pumps. It will fail completely eventually.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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photofinishron
Novice
Jul 30, 2009, 5:05 PM
Post #5 of 6
(1695 views)
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Re: grinding noise when the A/C is on,
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If you have a Harbor freight store close by you can get a mechanic's stethoscope which you can use to locate the direct source of the noise. You can also get these from most parts stores but probably cheaper from harbor freight. And they will work just as good.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 30, 2009, 9:10 PM
Post #6 of 6
(1693 views)
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Re: grinding noise when the A/C is on,
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If the noise only appears when the A/C is on, then it's safe to assume the compressor is causing it. The stethoscope isn't going to tell you any more.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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