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      05-03-2018, 10:02 AM   #94
T_EV
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Drives: 2011 135i M Sport DCT
Join Date: Feb 2018
Location: Atlanta, GA

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Quote:
Originally Posted by Dackelone View Post
Have you tried using a LONG screw driver, put it on or near each pulley... and carefully place your ear on the other end. Or get some mechanic's stethoscope. It's gotta be one of those pulleys, or AC compressor or PS pump.

Maybe take the belt off(Again!) and turn each pulley by hand and listen for any bearing noises.

There are tools that can help pinpoint a misaligned pulley...

see this video at 09:30...




Dackel
I actually have a mechanics stethoscope and I have put it everywhere (ac compressor, each pulley, ps pulley/pump, crankshaft, engine block, etc.) literally everywhere and I can't pinpoint the squeak. I've seen that tool but it's not cheap. I am going to take it to the shop (that charged me $110 and said it was the AC Compressor, which I replaced and still have the noise) to get a second opinion. I will keep everyone updated.
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