Quote:
Originally Posted by deansbimmer
Could be a pulley, or the AC compressor. See a shop who can use an electronic stethoscope to isolate the source (or buy one on Amazon and DIY).
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Thank you for advice.
Bought stethoscope today and tried it on pulleys - bottom one sounds bad. Other spinning things sounds good, there's also no sound without belt so it is not from inside of engine.
Removed top and bottom pulleys and found that bottom one, with tensioner, has some noise when spinning it by hand, using stethoscope sound patters looks similar to my issue.
Going to replace it, pretty sure it will help.