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Join Date: Sep 2018
Posts: 1
Ac compressor noise

My ac compressor is making a squealing noise at start up.
Are the bearings going bad ??
Pulley ??
Belt ??
Old 09-20-2018, 09:00 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
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Join Date: Oct 2014
Posts: 5
That description leads to a number of possibilities.
From your list, could be loose, worn belt or belt tensioner going bad.
Could be a fluid leak that wets the belt or pulley that gets cleaned off after a bit.
Could be a clutch or compressor bearing starting to fail, or a clutch bearing that has failed and shuts up when clutch is engaged (the AC compressor clutch of course).
Could also be power steering pump or water pump.
Could be a bad compressor or an overcharged AC that allows liquid refrigerant to get to the compressor.
Need more trouble shooting done.

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Old 09-24-2018, 07:34 AM
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Location: Japan
Posts: 500
First of all tell us the 7 model, type, built year
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Old 10-26-2018, 02:18 AM
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