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Loud Sreeching Noise in Engine compartment Loud Sreeching Noise in Engine compartment
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Old 02-27-2018, 02:20 PM   #1
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Loud Sreeching Noise in Engine compartment
I was cruising along today and started hearing a loud screeching noise from my engine. It is worse at idle .Doesn't matter if it is stopped or moving. With engine access off it almost sound like it is coming from the transmission instead of belts. No loss of power, coolant temp is fine. Please help!

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Old 02-27-2018, 03:15 PM   #2
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remove the serpentine belt and see if it stops.
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Old 02-27-2018, 03:25 PM   #3
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AOS maybe?
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Old 02-27-2018, 04:27 PM   #4
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Thanks! Ill give it a shot!
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Old 02-27-2018, 04:43 PM   #5
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What do I check next if it still is screeching? (2001) Boxter 5 speed Tiptronic)
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Old 02-27-2018, 04:49 PM   #6
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Only a small puff at start up, goes away instantly. No leaking oil or consumption.
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Old 04-06-2018, 12:15 AM   #7
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Have you confirmed it's not the ancillary belt?

Can you make & upload a video?

If it's gearbox or FW/clutch then it would be a bearing failed, with catastrophic failure imminent, though I'd expect you would experience loss of drive, and the noise would not be present at idle while stationary.

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