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General E46 Forum
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Old 08-10-2016, 06:50 PM   #1
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Weird Rattle Noise??

Hey guys soo usually every morning the first time i start my car i let is idle for a couple of minutes to let the engine warm up but most of the time (like 7/10) i hear this rattling coming from the front driver side of the engine bay. Kind of sounds like a tractor. Ill put the link down below. Please help ! And thanks in advance!

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Old 08-11-2016, 05:31 AM   #2
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Probably disa valve
A mechanical hobbyist and car enthusiast
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Old 08-11-2016, 06:52 AM   #3
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Sounds like a bad pulley to me. Would remove the drive belt and spin all the pulleys to see if one has issues. Might also replace the belt tensioner and pulley while you're at it.
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Old 08-12-2016, 11:57 AM   #4
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Thanks guys. Ill check and let you guys know
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curious, engine bay, noise, rattle, rattling sound

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