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1998 Chevy Malibu metallic sound when AC or Heat is Off

Tiny
WAYNEPINKSTON24
  • MEMBER
  • 1998 CHEVROLET MALIBU
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 141,100 MILES
There is a moderately metallic rattling sound when my AC or the Heat is off and when it is on the sound stops. Could this possibly be my water pump?
Friday, November 14th, 2008 AT 6:56 PM

3 Replies

Tiny
DENNYP
  • MECHANIC
  • 1,823 POSTS
It could be the clutch on the A/C compressor.
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Saturday, November 15th, 2008 AT 8:26 AM
Tiny
LISAMARIE1966
  • MEMBER
  • 2 POSTS
My 98 malibu has the same noise so I leave the a/c on low. We did find the noise in the front and it is that gear that goes out and in when a/c is turned off or on. Rubbing metal!
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Saturday, January 24th, 2009 AT 1:14 PM
Tiny
DENNYP
  • MECHANIC
  • 1,823 POSTS
That would be the A/C compressor clutch. It can be replaced without buying the complete compressor.
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Sunday, January 25th, 2009 AT 9:56 PM

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