Question about 1999 BMW 3 Series

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Engine noise at idle

I have a 1999 BMW 323i. It started making a sound at idle like maybe a clutch fan going bad, so I replaced the clutch fan, the belt and the water pump. Needless to say I still have the noise. It is just at idle. It gets worse when the A/C is on but idk if that has something to do with the RPMs ???

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It sounds like one of your idler pulleys for your drive belts is going bad. I'd take the belts off and spin these pulleys, If either one of them feels "funny" thats your bad guy.

Posted on May 23, 2009

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