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Re: A/C noise. What causes a loud rattle. (archive)
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Posted by Bob on May 08, 2000 at 19:28:42:

In Reply to: A/C noise. What causes a loud rattle. posted by Gil.P on May 07, 2000 at 19:05:34:

: I'm getting a loud rattle, sometimes screach from my A/C. I've been told it may be the "tensioner" or "pully". I've had them replaced, but the problem still persists. any ideas? thanks

Its the AC clutch and if it is not heard from inside the car it is probably normal. The 134a compressors work also under very high pressure and tend to be a bit loud. A tensioner will make noise with the AC unit on or off. The compressor only when the Ac is on.

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