2004 Bonneville GXP high pitched squealing - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-20-2014, 11:42 AM   #11
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Thanks for the tip, I may try that!
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Old 05-20-2014, 02:17 PM   #12
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Very welcome, I just went out and took a pic of the compressor, and put a red X where the hose is that I remove to lubricate the compressor, you remove the hose and insert the needle into the compressor, not the hose, and give it a light squirt, you do not want to add too much as they are designed to be oil-less, but still a few drops once and a while can help, especially if you ever have anything leak and cause the compressor to run continuously.
While under there inspect all of those soft hoses, all of mine were dry-rotted, and needed replacing, if you touch them and your hands become black quickly, then I'd go ahead and replace them, it is easy to do, and will only cost you a few dollars, you can get them from a local auto parts store.
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