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07-03-2011, 07:55 AM
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#1 |
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Registered User
Join Date: Apr 2010
Location: South Florida
Posts: 182
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a/c compressor knock
guys,
i have a 1990 k-1500 4x4 with 5.7 engine. a/c compressor about 18 months old. i hear a slight knock in the compressor when running the a/c. last night it seemed to get a little louder. is there a way to add oil to freon and have someone "top it off" with the freon/oil mixture, or can you only add oil before adding the freon ? thanks much. leonard
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