Loud shreaking sound on startup

bimmer456 · 12-23-2023, 04:45 PM

Let's just say someone who lives near me has a car that does this and sound like it has an exhaust leak as well. They just keep driving the car like that and don't bother getting it fixed. Curious as to what would do that, maybe a bad torque converter?

DanG · 12-23-2023, 05:49 PM

Down pipe uncatted

ShocknAwe · 01-03-2024, 11:56 AM

More likely coming from air or low fluid in power steering system or a belt of some sort. Excess vacuum causes a squeal but usually not heard over engine/exhaust noise.

They seem real interested in their car.

12-23-2023, 04:45 PM	#1
bimmer456 Major General 2963 Rep 5,997 Posts Drives: 340i Join Date: Nov 2016 Location: Pasadena, CA iTrader: (0)	Loud shreaking sound on startup Let's just say someone who lives near me has a car that does this and sound like it has an exhaust leak as well. They just keep driving the car like that and don't bother getting it fixed. Curious as to what would do that, maybe a bad torque converter?
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12-23-2023, 05:49 PM	#2
DanG Major General 10661 Rep 6,937 Posts Drives: 2018 M2 AW DCT Join Date: Aug 2012 Location: Seattle, WA iTrader: (1) Garage List 2018 BMW M2 [7.68]	Down pipe uncatted __________________ BMWCCA member Puget Sound Chapter
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01-03-2024, 11:56 AM	#3
ShocknAwe 1Addict 3233 Rep 7,894 Posts Drives: E82 Mutt, M57 Truck Join Date: Jul 2012 Location: Charleston iTrader: (22)	More likely coming from air or low fluid in power steering system or a belt of some sort. Excess vacuum causes a squeal but usually not heard over engine/exhaust noise. They seem real interested in their car. __________________ 2010 135i 6MT Jet Black N54/3 FE82 Mutt \| BUILD THREAD \| GARAGE SALE
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