a/c comressor clutch bearing noise on chevy k1500


Old 07-27-13, 03:37 AM
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a/c comressor clutch bearing noise on chevy k1500

Hearing what sounds like a bad bearing on the a/c compressor clutch on 1994 chevy k1500 with 5.7 v8. The noise only occurs when the a/c is turned on. Noise goes away when a/c is turned off. I replaced the clutch bearing last night, but noise did not go away. Any other ideas what it would be. I read on other forum sites that it might be low on oil. If that is the case--how do you add oil to the comressor? Trying not to replaced the entire system if it isn't needed. Getting cold air from a/c after I added freon to the system, just have an issue with the noise and what is causing it.
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Old 07-27-13, 04:23 AM
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The oil is added to the freon when you recharge the system. When you look at the recharge cans they will say with oil or without oil ..
Old 07-27-13, 08:21 AM
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you dont lose oil... Are you sure thats the sound from there? Could be idler pully, or alternator...

Sound resonates....Seems from what you say when the a/c is turned on it puts tension on the belt and in turn pulls on the faulty bearing....
Old 07-27-13, 04:31 PM
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I would say you have a comp. that is going bad.

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